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  2. DDR3 SDRAM - Wikipedia

    en.wikipedia.org/wiki/DDR3_SDRAM

    In contrast, the prefetch buffer of DDR2 is 4-burst-deep, and the prefetch buffer of DDR is 2-burst-deep. This advantage is an enabling technology in DDR3's transfer speed. DDR3 modules can transfer data at a rate of 800–2133 MT/s using both rising and falling edges of a 400–1066 MHz I/O clock. This is twice DDR2's data transfer rates (400 ...

  3. Memory timings - Wikipedia

    en.wikipedia.org/wiki/Memory_timings

    Without knowing the clock frequency it is impossible to state if one set of timings is "faster" than another. For example, DDR3-2000 memory has a 1000 MHz clock frequency, which yields a 1 ns clock cycle. With this 1 ns clock, a CAS latency of 7 gives an absolute CAS latency of 7 ns. Faster DDR3-2666 memory (with a 1333 MHz clock, or 0.75 ns ...

  4. DDR SDRAM - Wikipedia

    en.wikipedia.org/wiki/DDR_SDRAM

    DDR3 advances extended the ability to preserve internal clock rates while providing higher effective transfer rates by again doubling the prefetch depth. The DDR4 SDRAM is a high-speed dynamic random-access memory internally configured as 16 banks, 4 bank groups with 4 banks for each bank group for ×4/×8 and 8 banks, 2 bank groups with 4 ...

  5. Synchronous dynamic random-access memory - Wikipedia

    en.wikipedia.org/wiki/Synchronous_dynamic_random...

    As with all DDR SDRAM generations, commands are still restricted to one clock edge and command latencies are given in terms of clock cycles, which are half the speed of the usually quoted transfer rate (a CAS latency of 8 with DDR3-800 is 8/(400 MHz) = 20 ns, exactly the same latency of CAS2 on PC100 SDR SDRAM).

  6. Table of AMD processors - Wikipedia

    en.wikipedia.org/wiki/Table_of_AMD_processors

    Clock rate Bus Speed & Type [a] Cache Socket Memory Controller Features L1 L2 L3 ... 2000 HT 512 DDR2 DDR3: Regor 2 1600–3600 2000 HT 512, 1024 DDR2 DDR3: Sempron:

  7. Memory divider - Wikipedia

    en.wikipedia.org/wiki/Memory_divider

    Then, the base memory clock will operate at (Memory Divider) × (FSB) = 1 × 200 = 200 MHz and the effective memory clock would be 400 MHz since it is a DDR system ("DDR" stands for Double Data Rate; the effective memory clock speed is double the actual clock speed). The CPU will operate at 10 × 200 MHz = 2.0 GHz.

  8. Talk:DDR3 SDRAM - Wikipedia

    en.wikipedia.org/wiki/Talk:DDR3_SDRAM

    The Latency Table has both the Memory Clock speed and the Bus IO Speeds Listed. ... DDR3 2000 9-9-9-24 has 25% more bandwidth then even DDR3 1600 while the timings of ...

  9. CAS latency - Wikipedia

    en.wikipedia.org/wiki/CAS_latency

    Toggle Effect on memory access speed subsection. 2.1 Memory ... is the delay in clock cycles between the READ command and the moment ... DDR3-2000 2000 MT/s 0.500 ns ...

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