Russell Coker’s Documents

28 Aug

RAM Speed according to Memtest86+

Here are some speed results for RAM according to Memtest86+ on some machines that I have run. Note that the reported speed varies between runs by a few percent.














Compaq Athlon 1GHz PC133 RAM (3 DIMMs)219MB/s
Compaq P3-800MHz PC133 RAM (1 DIMM)270MB/s
Compaq P3-800MHz PC133 RAM (3 DIMMs, 2*128 + 256)240MB/s
Compaq P4 1.5GHz PC133 RAM (3 DIMMs)486MB/s
Compaq P4 1.5GHz PC133 RAM (1 or 2 DIMMs)490MB/s
HP Celeron 1.8GHz PC2100/DDR266 (1 DIMM)824MB/s
HP Celeron 2.4GHz PC2100/DDR266 RAM (2 DIMMs)984MB/s
Celeron D (32bit) 2.93GHz PC2400/DDR300 PC3200 RAM1,140MB/s
HP Celeron 2.4GHz PC2700/DDR333 RAM (2 DIMMs)1,027MB/s
HP Celeron 2.4GHz PC2700/DDR333 RAM (2 DIMMs)1,375MB/s
Dell PowerEdge T105 Dual-core Opteron 1212 (2GHz) single DDR2-667 ECC RAM1,670MB/s
Dell PowerEdge T105 Dual-core Opteron 1212 (2GHz) pair of DDR2-667 ECC RAM1,826MB/s
NEC Pentium D 2.8GHz DDR533 (paired DIMMS)2,600MB/s
NEC Pentium D 2.8GHz DDR 533 (unpaired DIMMS)1,600MB/s
NEC Pentium E2160 1.8GHz DDR663 (single DIMM)11,700MB/s

The Wikipedia page on SDRAM lists the theoretical speeds and the various names of the different types of DDR RAM (each type seems to have at least two names).

DDR266 theoretically can do 2100MB/s, but I’ve only seen it do 984MB/s (with two DIMMs).

One Response to “RAM Speed according to Memtest86+”

  1. 1
    Ben Stringer Says:

    HP BL35p AMD Opteron 2.4Ghz DDR400, 1648 MB/s

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