A64's w/HT of 2000 MHz vs. the Opteron w/an HT of 1000 GHz

[GoHack]

Hi,

I noticed that the A64's have an HT of 2000 MHz, while the Opterons have an HT of 1000 MHz. Why the smaller HT on the Opteron's?

Would that make the standard A64's faster than the Opteron's?

Thx

 

[cyclone3d]

From what I could find... the A64s HT is rated at DDR speeds (1000Mhz x2) wjile the Opterons are rated at non-DDR speeds (1000Mhz x1)

In reality.. they both support DDR, and will both run a HT link of 2000Mhz.

Clock for clock... you might see a tiny bit of performance increase from an Opteron... the Opteron has 3 HT links.. while the A64 has only 1.

 

[FreiDOg]

There's no difference between the Opteron and Athlon HTT links to the chipset.
Both currently run at up to 1000mhz, both are bi-directional (Not exactly the same as DDR, bi-directional allows a packet to be sent over the 'up' and 'down' stream connections during the same clock cycle).
Some Opterons do have more than 1 HTT link, but the extras are only for CPU <-> CPU communications, they are not part of 1xxx Opterons, and they do not impact 1P systems.

 

[(cf)Eclipse]

There's no difference between the Opteron and Athlon HTT links to the chipset.

i would like to stress this. it is like the difference between 400mhz ddr and ddr2-800. they are identical, just different ways of describing the same thing

 

[W4ngsta]

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