More on that point, in a battle of DDR4 vs DDR3 vs DD2 vs DDR, the clear winner is DDR4, the newer, more powerful iteration which improves upon advancements by it’s predecessors. Thread starter Kenza; Start date Oct 22, 2010; K. DDR4 runs between 1200 to 1600MHz. 3. Follow. DDR has 4 internal banks. The DDR2 memory clock runs at half of the system clock while the clock of DDR3 runs at quarter speed of the system clock. You could also buy a DIMM of DDR2 RAM or SDR RAM. Sorted by: 9. Also, DDR5 requires lower operating voltage than DDR3 RAM, making it more energy efficient. QUESTION 3 : quelle est la différence entre DDR, DDR2 et DDR3 ? QUESTION 4 : puis-je utiliser DDR2 au lieu de DDR ? Merci d'avance, Moi aussi Posez votre question Signaler; A voir également: DDR et DDR SDRAM ? DDR, DDR2 et. Another factor to consider when upgrading from DDR2 to DDR3 is the maximum memory capacity supported by your motherboard. - Advertisement - A little bit confused about these four, let’s put it this way; The original DDR RAM. 4000. 5Vでした。. La 1ère, c'est la faible différence entre DDR2-1066 et DDR2-800, la hausse de bande passante étant compensée par la hausse de la latence. 35 V operation for memory. Je voudrais aussi savoir la différence entre les deux. Difference entre DDR3 SIMPLE et DDR3L. Crucial ballistix - PC3 10600 (1333Mhz) - 2Go (BL25664BN1337) Ou. Les deux encoches sont situées sur le bord d’insertion, mais sur le module DDR4, l’encoche ne se trouve pas tout à fait au même niveau afin d’éviter d’installer le module sur une carte mère. My friend is installing a GeForce 8400 GS into a Dell 660s motherboard that has been moved into a bigger case. Tradesman1. DDR2 -DDR3 différence et compatibilité. Debuted: 2014. What is more interesting is that at an even lower 1. A 667MHz ! La RAM fonctionne toujours à la vitesse de la moins rapide pour des raisons de stabilité. DDR3 SDRAM. Speed: 1600 Million MT/s. Cette différence de position d’encoche est la réponse de pourquoi vous ne pouvez pas placé une RAM DDR3 dans un support de mémoire DDR2 et vice-versa. The DDR in DDR3 and DDR4 stands for Double Data Rate, and RAM stands for Random Access Memory. Choisir sa ram : pc3 10666 OU 8500 ? des écrans bleus à n'importe quels moment , et j'en suis arrivé à la conclusion que cela venait de mes barrettes de ram. ONFI 3. High-density components enable large memory subsystems with fewer chip counts. h2so3 - 13 août 2010 à 13:53 Er Bras - 18 sept. DDR3, an acronym for Double Data Rate Type Three Synchronous Dynamic Random-Access Memory, certainly sounds intricate. The DDR2 standard was developed to consume less power than its predecessor during general operation. Posts : 1,996 Windows 7 Home Premium 64 bit. DDR4 speed is faster than DDR3. 4GB of DDR3 is half as much RAM as 8GB of anything . Posts: 7,833 +899. Double Data Rate 3 Synchronous Dynamic Random-Access Memory ( DDR3 SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth ("double data rate") interface, and has been in use since 2007. The longer answer is that GDDR5 is the more recent type of double data ram, the "G" standing for "graphics", and is just for graphics cards. Difference between DDR, DDR2 and DDR3. Physical difference. Mientras que DDR4 no tiene límite o capacidad máxima. The big difference with the first generation of DDR is that it allows double write. DDR3 is marked PC3 or PC3L (L - for low voltage). DDR can transfer data at roughly twice the speed of SDRAM. 0. 2014 à 21:43. While it’s cost is. 329 1 3. DDR3 RAMs can transfer data twice as fast as DDR2. The features of DDR1 RAM, DDR2 RAM, and DDR3 RAM are given in detail. Zeptejte se na jakýkoli rozdílBusiness, Economics, and Finance. 20–0. Both have to do with memory bandwidths. DDR3 is used in earlier computer systems, whereas DDR4 is being used in the latest computer systems. You could also buy a DIMM of DDR2 RAM or SDR. In this instance, we can see that a primary difference could be in terms of speed, DDR is typically faster while SSD is slower. 35v SODIMM. Quelle est la différence entre la RAM DDR2, DDR3 et DDR4? La technologie expliquée; Publicité RAM, qui signifie Random Access Memory, est un emplacement de stockage à court terme utilisé par votre ordinateur pour l'exécution de processus. The speed of DDR is slower than that of DDR2. 5. The most common found in entry level laptops and Chromebooks is DDR3 laptop RAM. Cart; Français. DDR has been the standard built upon ever since, starting from the original DDR RAM, to DDR2, to DDR3, and now to. 2. hello, j'aimerais connaître la différence entre ces 3 types de barrettes de ram, je sais que certaines sont compatibles avec certains ordis et d'autres non mais à part ça je n'y comprends rien. the x8 and x16 refer to the density of hte ram module. PC3-12800 is exactly the same as DDR3-1600. But the underlying architecture is the same. 5. 1) the actual speed in ns (nanoseconds) of the chips on the module (60ns), 2) the clock speed of the data bus (PC800 is 800MHz), 3) the throughput (in Mbps) of the memory (for example, PC3-12800 is 12,800Mbps or 12. Difference entre ddr2 et ddr3; Différence entre tcp et udp - Guide ; Difference entre actif et en ligne sur messenger - Forum Facebook Messenger; Instagram différence entre abonné et suivi - Forum Twitter. The speed of DDR5 is faster than DDR3. The original DDR standard could fetch one unit of data, but DDR could do twice as much at a time. 05 volts, and DDR5 = which is just becoming commercially available – using 1. Considérations. 40–1. DDR3は同じテクノロジの高度なバージョンです。. RAM Slots: 2 or more laptops only have upto 2 ram slots. Begge disse RAM'er gemmer. Figure 1: image shows the. 5V only. 65V par exemple. Short for double data rate three, DDR3 is a type of DRAM (dynamic random-access memory) released in June 2007 as the successor to DDR2. ) Its complete name is DDR3 SDRAM, which shows it is a type of Synchronous Dynamic RAM. Aide Barette memoire DDR2 et DDR3. 05v depending on the stick's manufacturer and amount of RAM. DDR3 is a type of RAM used for system memory while GDDR3 is a type of RAM used for graphics cards. Les nouveaux processeurs Intel (depuis la quatrième génération Haswell) requièrent la mémoire DDR3L; Les modules DDR3 réguliers sont hors norme pour ces. In our non-gaming tests, there is one situation where DDR3 is more than 3%. DDR1 RAM, and DDR2 RAM is considered to be outdated and are currently very less in use. DDR3-SDRAM – Double Data Rate Three (3). DDR3 has a great benefit when it comes to latency. if its 32 bit, you can't access more than 3. according to that spec sheet you linked, your system came with 3gig ram, and max's out on 4gig. In making a distinction between the DDR4 2400 vs DDR2 3200, first comes the storage. This means that DDR2 memory modules will only fit into. Mindkét RAM nem kompatibilis a sorozat bármely más RAM-jával. DDR2 = higher latecny, but higher speeds (eventually to make more bandwitH) DDR2 is also lower power, lower heat than DDR1 GDDR is a fancy name for DDR1 in graphics cards. One noteworthy difference is the fly-by architecture used in DDR3 JEDEC-standard modules. DDR3. DDR3 can clock speeds between 800 and 2133 MT/s (million transfers per second), whereas the speeds of DDR4 start at 2133 MT/s and can go up to 4266 MT/s, which is significantly faster than DDR3. Whereas DDR4 had a maximum die density of 16Gb, DDR5. Considering the power consumption done by both, we find that DDR2 is known to consume more power than DDR3. RAM Speed. Online Users. 2014 à 21:36 Vayze - 26 févr. DDR3 memory systems are very similar to DDR2 memory systems. DDR3 operates at a standard voltage of 1. Conjugaison Documents Dictionnaire Dictionnaire Collaboratif Grammaire Expressio Reverso Corporate. The catch is that it has somewhat higher latencies than DDR2. Here's an in-depth article on the meaning of different RAM. 35 V, that means that you have DDR3L memory. . It offers new features, greater bandwidth and lesser power consumption than its predecessor. No, difference would be minimal as Rogue Leader mentioned, also, could be money wasted, your Xeon is a 800/1066 CPU and might not even be able to carry 1333 let alone a fair amount of 1333. [quotemsg=4051995,11,66863]If your gaming you want see much difference in performance, a 32bit OS can only use 3GB of Ram. 6 V or 1. jaxi - 23 juin 2012 à 20:15 anonyme - 7 août 2017 à 23:09. The DDR RAM also comes in several versions (or generations), such as DDR, DDR2, DDR3,. 5 voltage and ddr4 has 1. Quelle est la différence entre la SDRAM vs la DDR, vs DDR2, vs DDR3, vs DDR4 vs DDR5 ?. DDR,DDR2 and DDR3 memories follow the DDRxxx/PCyyyy classification. And S939 motherboards have a. La RAM DDR2 utilise 1,8V, tandis que la DDR3 est inférieure à 1,5V. DDR2 2GB module, DDR2-667 (PC2-5300) Delay of CL5. Difference entre DDR3 SIMPLE et DDR3L. Like the previous. 75%. Quelle est la différence entre DDR2 et DDR3 ? Comment savoir si vous avez une RAM DDR2 ou DDR3 L'encoche DDR2 est situé près du milieu du bâton tandis que l'encoche de la RAM DDR3 est placée plus près du côté gauche. Even if same 1. The most significant difference between DDR3 and DDR5 is that DDR3 RAM has a slower data rate, ranging between 800 MT/s to 1600 MT/p, while DDR5 RAM has a faster data rate, ranging between 3200 MT/s to 6400 MT/s. 5V. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. DDR4. The following information is designed to help you identify Kingston FURY Memory Modules by Specification. Quel type de DDR3 ? La DDR3 est un type de mémoire dynamique synchrone à accès aléatoire (SDRAM) à double débit de données (DDR). 8 V (low voltage) SDRAM speed is considered as 66 MHz, 100 MHz, 133 MHz. As a successor to DDR2, DDR3 is a lot faster, whereas DDR4 is even faster than DDR3. Find out more at Crucial. PC3-10600 is one type of DDR3 SDRAM. La Ddram est une évolution de la Sdram. As far as the OS, no. 5 Gb/s) of bandwidth and 8 Gb memory addressability for faster systemLes processeurs AM2 et AM2+ n'acceptent que la mémoire DDR2. Y'atil une grande difference entre 4go DDR2 et 4go DDR3 ? Hormis pour la consommation, lapuissance s'en fait elle ressentir ? Merci . Thread starter Kenza; Start date Oct 22, 2010; K. DDR2はDDR1と比較してより速い転送速度、バスクロックを提供し、より電力に優しいです。. 3. Shakakan - 19 sept. DDR2 is the predecessor to DDR3. DDR3 2GB module, PC3-10600 (DDR3-1333) CL9 latency. DDR2. Level 10. DDR3 RAM usually has a CAS latency of 9 or 10, while DDR4 will have a. That hands the value win to DDR3, at. . Autres; Diferença de memórias DDR, DDR2, DDR3 e DDR4. Clock rate - 800 to 1600 MHz. GDDR3. DDR2 started to become competitive with the older DDR standard by the end of 2004, as modules with lower latencies became available. 5V. Whatever the speed bump that option might get you, it's likely not worth $100. DDR3 (terceira geração de DDR SDRAM) é uma versão melhorada do DDR2. Jan 13, 2008. DDR1 – 184 Pin; DDR2 – 240 Pin; DDR3 – 240 Pin . The amount of voltage in DDR3 is 1. KF. If you get one additional 8GB stick to your existing 2GB stick, only 4GB will run in dual channel mode, the rest will run a bit slower in single channel mode, depending on what you are working on. 7. If you look closely, you’ll see that every ram has a cut mark. In the real-world benchmarks (Audio encoding, Photoshop CC and Premiere Pro CC), there was little if any drop in performance with either ECC or REG ECC memory. DDR4 and DDR3 both have 8n prefetch architecture. This is due to use of lower operating voltage of 1. The most significant difference between DDR3 and DDR4 RAM is in their data transfer rates, i. DDR4: 288. The clock speed of DDR4 varied from 1066 to 2133 MHz. 3V to 1. Ez azt jelenti, hogy a RAM egy típusról a másikra történő cseréje érdekében (pl. CONNEXION. 4 ns total CAS time), which matches the CAS time of the fastest current DDR2 memory. Less chance for damage from heat to occur. DDR3 memory operates at 1. Most DDR3 RAMs are designed equipped with the 240 pin nodule, which can be able to fit into motherboard dim slots easily. There may be a marginal difference with RAM modules that have more Memory Chips on both sides and therefore produce more heat and become unstable earlier when overclocked – especially. bonjourAvec un quad core Q8200 et une 4850 hd, cela fait il une différence si on prend 4 go DDr2 ou 4 Go ddr3, de même prix? - Topic choix de ram ddr2 ou ddr3? du 16-11-2009 22:30:32 sur les. DIMM DDR4 vs DDR3. Depending on the intended market for the finished product, the memory buses will vary, and the memory system support requirements will range from point-to-point topologies toPrecisely, the difference is merely physical, since the modules in SO-DIMM format were designed precisely to take up less space and thus be able to be used in small equipment such as laptops. Bonjour,je voudrais savoir les caractéristiques des mémoires ddr,ddr1 et ddr2 et les différences qu'il y a entre elles. Si garde de la DDR2 667 sur la carte mère, la DDR2 800 sera bridée. Ddr2 /// ddr3 Fermé fadass Messages postés 384 Date d'inscription dimanche 5 octobre 2008 Statut Membre Dernière intervention 17 février 2011 - 29 janv. SDRAM (synchrone DRAM) est un nom générique désignant différents types de mémoires DRAM dynamiques synchronisées avec la vitesse d'horloge pour laquelle le microprocesseur est optimisé. DDR2 - PC2 works on 1,8V voltage. Reply More posts you may like. Whereas DDR2 has either 4 or 8 internal banks. DDR3 has data transfer rates ranging from 800 MT/s to 1600 MT/s, whereas DDR4 has data transfer rates ranging from 1600 MT/s to 3200 MT/s. DDR5 RAM also transfers data twice at the same time with high bandwidth. Culture GeekYes. In contrast, we found that only +DDR2/+COL1 tumours showed significantly higher levels of pAKT-S473 (Supplementary Fig. While it’s cost is higher or more than DDR3. Meilleure réponse: Salut, La DDR3 est une évolution de la DDR2. if it does have 64 bit, you could upgrade, but you'd only be getting 1gig more. Voit on vraiment la différence? 0. DDR3 merely allows greater speeds. Following on from Grace's answer, this link What's the difference between DDR3 1333 MHz PC3-10600S and DDR3 1333 MHz PC3-10600 states: To answer you actual question correctly. 65V versus ~1V) •DDR3 uses a 64-bit memory controller per. C'est la même chose que la différence entre DDR, DDR 2 et DDR 3 pour la mémoire vive, la DDR 5 est plus rapide et performante que la DDR 3 et elle fonctionne probablement avec une tension moins élevée. Vengeance RAM is marketed towards the midrange but can in fact boast the. While it uses less power, it still provides better speeds of 800 to 1600 MT/s with an 8-bit prefetch buffer. Its processing speed is gained by improvement in bus signal. 25,810. DDR2 memory type: DIMM 240 pins: SO-DIMM 200 pin: DDR3 memory type: DIMM 240 pins: SO-DIMM 204 pins: DDR4 memory type: DIMM. 5 or 2. you may want to take the whole mother board out of the case and realign the ram sticks with the ram slots to make sure they are in there correctly. By “Notch,” we mean “that which is known as “Notch. In your case as you've stated it's DDR3 (3rd generation of Double Data Rate) A DIMM is a standard format Dual In-line Memory Module. 25mm tall. Whereas DDR3 stands for Double Data Rate version 3. 5v. PC2-XXXX et/ou DDR2-XXX (X) = ram de type DDR2. What's the difference between DDR3 and DDR4? DDR3 had a good run, while DDR4 is the new memory of choice. DDR2 vs DDR3. Maximum Size: 16GB per module. Trouvez la différence: schéma de la conception physique des DIMM DDR2, DDR3 et DDR4. Différence d’encoche du détrompeur L’encoche du détrompeur du module DDR4 ne se trouve pas au même endroit que sur le module DDR3. Comparaison DDR2 vs DDR3. In this video, we dive deep into the world of computer memory as we explore DDR1, DDR2, DDR3, DDR4, and the latest DDR5 RAM technology. DDR2 provides a faster transfer rate, bus clock and is more power-friendly compared to DDR1. In market DDR3 is available for different types of frequencies such as 1066, 800, 1600, 1333, 2133, 1866 MHz. Remarque : la DDR a des meilleurs timings que la DDR2, et bien meilleurs que la DDR3. With the development of science and technology, higher standard server memory represents stronger computer performance, lower power consumption, and lower heat generation. Crucial - PC3-10600 (1333MHz) - 2Go (CT25664BA1339) + Arctic cooling - Arctic RC. DDR2 was succeeded by DDR3, which. The short answer is always opt for the faster components in your system, within your budget. Charts; Entertainement; Gaming; Advertise;. The choice of RAM to use ultimately depends on the type of computer you have and what you need to do with it. C'est alors la fréquence qui fait la différence. If you are planing to upgrade your memory, buy DDR3L stick. View Best Answer in replies below. 35200 MB/s. DDR and DDR2 DDR2 and DDR4 DDR3 and DDR4 DDR2 and DDR3. GDDR3 memory addresses can be read and written at once while DDR3 memory addresses cannot. DDR4 SDRAM est la RAM la plus courante. It is the improved version of the DDR2 SDRAM. Value. La SDRAM a évolué en types de mémoire DDR, DDR2 et DDR3 SDRAM. 65 V are common, and chips requiring only. 5V while that of DDR3L is 1. Here we will tell the difference between DDR1, DDR2, DDR3, and DDR4 since its inception in 2000. 5. DDR3’s 1. 6 V. DDR3 RAM works almost the same as DDR2. Ethernet. Its advantage is the high access speed. DDR, DDR2, and DDR3 RAM memories are classified according to the maximum speed at which they can work, as well as their timings. Namaskar Doston ! Is video me DDR1 DDR2 DDR3 RAM ke Difference ke bare me bataya gaya hai puri details me. What does DDR. Merci de me repondre sur mon email : [email protected] range. (aka notebook form factor). Upgrade your knowledge on everything related to RAM with our handy guides on all you need to know about computer memory. 4. Usually, the latest version of RAM is incorporated in laptops to increase its speed and efficiency. DDR3 tiene un máximo de 16 GB de memoria. 8 Volt. Clearly, this is a big difference in terms of storage capacity. 1rx8 memory modules are single rank, 8-channel memory modules. DDR4 normally runs at 1. A 2GB stick of DDR2 800 RAM is not the same thing as a 2GB stick of DDR3 1333 RAM. The speed of DDR3 is slow in comparison to DDR4. Et des fréquences de 1600 MHz sont à l'horizon. 5 V operation only. DDR3U, DDR4U “Ultra Low Voltage” Works on 1. However, DDR3 RAM works nearly the same as DDR2. PC3-xxxx is a module designation for DDR3 RAM. So DDR3 RAM PC3-1333 runs at 1333 MHz while the PC3-1066 runs at 1066 MHz. DDR3 stands for Double Data Rate version 3. DDR4 runs at a lower voltage than GDDR5, 1. Does ddr2 or ddr3 matter on the video card. r: "registered" RAM. typically less dense ram will perform slightly faster but with todays interface speeds, the difference is barely measurable in anything but detailed bandwidth tests. About Quizlet; How Quizlet works; Careers; Advertise with us; Get the app; For students. 8V and DDR3 operates in the 1. For this spec, DDR4 fares just the same as DDR3 because the former’s prefetch is also 8n. A DDR3 1866 Mhz RAM operates at an 1866 MHz clock, and an 1866 MHz clock cycle takes only 0. Par contre il ne faut pas trop compter sur des CM avec support DDR4 et DDR5,. DDR et DDR2 sont les deux types de SDRAM. そ. 5V. DDR working on speed as 200 MHz, 266 MHz, 333 MHz, 400. Three essential things can help you spot the differences. The memory would just run at the slower speed. Différence entre SRAM et SDRAM Différence entre SRAM vs SDRAM SRAM ou (Static Random Access Memory) est un type de stockage de données informatiques qui n'a pas besoin d'actualisation fréquente. DDR4 runs between 1200 to 1600MHz. First, the DDR4 module has a 288-pin interface, while the DDR3 has a 240-pin interface. DDR2 ou DDR3 ? Fermé. The primary difference between these DDR technologies is their bus clock speed, data transfer rate, and power. Following DDR, the MT/s (mega transfers per second) figure refers to the number of mega transfers per second. 75 milliseconds. Less heat. #difference #AMONG DDR , DDR2 , DDR3 , DDR4 RAM #Here ARE #SomeFacts ABOUT ALL OF THESE. Autres; GT 730 (DDR3) vs GT 730 (GDDR5) | New Games Benchmarks. 5 Volts (standard); 1. DDR3 SDRAM. Les modules DDR3 utilisent 240 broches et les DIMM DDR4 utilisent 288 broches. bonjourAvec un quad core Q8200 et une 4850 hd, cela fait il une différence si on prend 4 go DDr2 ou 4 Go ddr3, de même prix? - Topic choix de ram ddr2 ou ddr3? du 16-11-2009 22:30:32 sur les. 5 volts in default setups and up to 1. C. This makes it slightly larger than its DDR3 counterpart,. you should probably grow up. SRAM: It relies on static flip-flops to store data. C'est impératif. 2 voltage. DDR4 uses even lower power voltage consumption as compared to its predecessors and has got a faster bus speed. that means you can use ddr2 667 mhz memory on a. Enjoy your 8 GB of RAM. This concept may sound difficult, but here is the very simple. Il est vrai que les mémoires DDR et DDR2 ne sont plus utilisées, et qu’en fait la mémoire DDR a disparu depuis longtemps. Meilleure réponse: Salut, La DDR3 est une évolution de la DDR2. 5 V, compared to DDR2's 1. Also the amount of cache memory. A DDR RAM which has 240 pins and length 133. 1. There are several variations that are indicated by the trailing letter (the s or f on PC3-8500s and PC3-8500f ). Like DDR and DDR2, DDR3 modules use similar electronic signaling standards, but at different voltages and timings. I have Dell inspiron 15 5000 series, SODIMM 204pin slot, DDR3 PC3 DDR3 1. 2 volts your new Ram won't work. Il est vrai que les mémoires DDR et DDR2 ne sont plus utilisées, et qu’en fait la mémoire DDR a disparu depuis longtemps. DDR3, being an upgrade from DDR2 RAM, has a faster data transfer rate than its predecessor with twice the rate, or eight times the internal memory array speed. DDR3’s 1. The sole principal change from AM2+ to AM3 is support for DDR3 SDRAM. 8-2. La RAM DDR est sans aucun doute la plus répandu dans nos ordinateurs. 8 V to 1. 5-1. PC3-XXXXX et/ou DDR3-XXXX = ram de type DDR3. La compatibilité n'est en général pas un problème dans la plupart des cas. 5x the maximum standard DDR4 speed. Also DDR2 667MHz Ram run at about 1. Comparaison DDR vs DDR2. DDR4 8G. The two technologies progress independently of each other. Be advised that storage capacity is important, but it isn’t the only thing that will determine the overall. The other major difference between DDR2 and DDR3 is operating voltages. DDR3 modules have slightly lower latencies than DDR2. . 2. The DDR1 IC has notches on the bottom of it. 2023. DDR3 has lower latency than DDR4. 5 voltage, ddr2 has 1. What are the different types of desktop RAM? RAM sticks or DIMMs come in various capacities, typically 4GB, 8GB, and 16GB. DDR3 - PC3L works on 1,35V voltage. The cost difference between DDR-1333 and DDR3-1600 today is merely $5 or so for (2x2)4 GB. 2 things: DDR400 is for S939 motherboards. DDR2 uses the same internal clock speed as DDR, however, the transfer rates are faster due to the enhanced input/output bus signal. Les modules DDR SDRAM sont disponibles avec l’architecture SODIMM. DDR3 1866mhz RAM. [9] Compatible with DDR3,4. DDR2 ou DDR3 Résolu/Fermé. A SO-DIMM is a Small Outline version of a DIMM, hence. Crucial ballistix - PC3 12800 (1600Mhz) - 2Go (BL25664BN1608) DDR2 vs. 10 réponses. In regards to the I/O bus clock, DDR2 is only available between 200-800 MHz, whereas DDR3 supports from 400-1600 MHz. Culture GeekDDR2 vs DDR3 DDR2 og DDR3 tilhører den seneste DDR SDRAM (synkron dynamik med dobbelt datahastighed random access memory) familie af RAM'er. Additionally, DDR3 is a single voltage RAM that supports operations of up to 1. 5 milliseconds. DDR stand for Double Data Rate it is the latest version of SDRAM. Right one, RAM speed really doesn't matter that much if at all on laptops. DDR3 is the current standard for system memory, aka RAM or, to get more specific, SDRAM.