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2400 2400 300 2400 128 256 12.8 128 31 $149 Radeon X1300 XT August 12, 2006 RV530 157 150 500 12:5:4:4 6000 2000 625 2000 22 $89 Radeon X1550 January 8, 2007 RV516 107 100 AGP 8x PCI PCIe x16 4:2:4:4 2200 2200 275 2200 128 256 512 27 $ Radeon X1600 PRO October 10, 2005 RV530 157 150 AGP 8× PCIe ×16 390 390–690 12:5:4:4 6000 2000 625 2000 12 ...
2400, 2400 1000 HT Socket 939: 90 San Diego FX-55, FX-57 2600, 2800 Toledo FX-60 2 2600 Windsor FX-62 2800 Socket AM2: DDR2: AMD64, NX Bit, AMD-V: FX-70, FX-72, FX-74 2600, 2800, 3000 Socket F: 130 Athlon 64: Clawhammer 1 2000–2600 800 HT 1024 Socket 754: DDR: MMX, 3DNow!+, SSE, SSE2: Cool'n'Quiet: AMD64, NX Bit (not in CG stepping) 1000 HT ...
While the gross data rate equals 33.3 million 4-bit-transfers per second (or 16.67 MB/s), the fastest transfer, firmware read, results in 15.63 MB/s. The next fastest bus cycle, 32-bit ISA-style DMA write, yields only 6.67 MB/s .
DDR3-2000 memory with 9-9-9-28 latency (9 ns) was available in time to coincide with the Intel Core i7 release in late 2008, [19] while later developments made DDR3-2400 widely available (with CL 9–12 cycles = 7.5–10 ns), and speeds up to DDR3-3200 available (with CL 13 cycles = 8.125 ns).
Double data rate (DDR) RAM performs two transfers per clock cycle, and it is usually described by this transfer rate. Because the CAS latency is specified in clock cycles, and not transfers (which occur on both the rising and falling edges of the clock), it is important to ensure it is the clock rate (half of the transfer rate) which is being ...
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 ...
The Mobility Radeon HD 2400 is offered in two model variants; the standard HD 2400 and the HD 2400 XT. [22] The Mobility Radeon HD 2600 is also available in the same two flavors; the plain HD 2600 and, at the top of the mobility lineup, the HD 2600 XT. [23] The half-generation update treatment had also applied to mobile products.
DDR4 speeds are advertised as double the base clock rate due to its Double Data Rate (DDR) nature, with common speeds including DDR4-2400 and DDR4-3200, and higher speeds like DDR4-4266 and DDR4-5000 available at a premium. Unlike DDR3, DDR4 does not have a low voltage variant; it consistently operates at 1.2 V. Additionally, DDR4 improves on ...