Soldato
- Joined
- 18 Oct 2002
- Posts
- 6,669
OK, so I'm bored waiting for my 2GB RAM (two different sets) and extra 36GB Raptor to show up, so I thought I'd play with my max memory and max CPU clocks.
I've always been an avid "max CPU >> everything" when it comes to the S939 platform, but these results are interesting nonetheless, given the large difference between memory speeds and small difference in CPU speeds used.
I know my memory maxxes out @ 245 Mhz 2-2-2-6 1T
I know my CPU maxxes out @ approx. 3.05 Ghz
Given these two facts, we can come up with two possible configurations:
10 x 305, 140 divider = 3.05Ghz CPU + 217Mhz mem
and
10 x 294, 166 divider = 2.94Ghz + 245Mhz mem
That's 3.7% difference on the CPU and 12.9% difference on the mem.
Results:
Max CPU
Everest
Read = 6191
Write = 2559
Latency = 41.2
1M SuperPi
28.2
FEAR
47/107/278
3DMark '01
32244
Max memory
Everest
Read = 6768
Write = 2777
Latency = 38.2
1M SuperPi
28.68
FEAR
46/107/281
3DMark '01
31955
I was surprised that the max CPU cleaned up all round (except memory bandwidth, obviously). I expected SuperPi to prefer the latency and bandwidth offered by the max memory config.
I know a lot of you guys already know all this, but it's useful to have some more real-world results and to show the newer guys that CPU speed is where it's at on the S939 platform.
(If anyone's wondering why the 3DMark is so low, I had max details and LOD -4
see my sig for real 3DMark scores 
)
I've always been an avid "max CPU >> everything" when it comes to the S939 platform, but these results are interesting nonetheless, given the large difference between memory speeds and small difference in CPU speeds used.
I know my memory maxxes out @ 245 Mhz 2-2-2-6 1T
I know my CPU maxxes out @ approx. 3.05 Ghz
Given these two facts, we can come up with two possible configurations:
10 x 305, 140 divider = 3.05Ghz CPU + 217Mhz mem
and
10 x 294, 166 divider = 2.94Ghz + 245Mhz mem
That's 3.7% difference on the CPU and 12.9% difference on the mem.
Results:
Max CPU
Everest
Read = 6191
Write = 2559
Latency = 41.2
1M SuperPi
28.2
FEAR
47/107/278
3DMark '01
32244
Max memory
Everest
Read = 6768
Write = 2777
Latency = 38.2
1M SuperPi
28.68
FEAR
46/107/281
3DMark '01
31955
I was surprised that the max CPU cleaned up all round (except memory bandwidth, obviously). I expected SuperPi to prefer the latency and bandwidth offered by the max memory config.
I know a lot of you guys already know all this, but it's useful to have some more real-world results and to show the newer guys that CPU speed is where it's at on the S939 platform.
(If anyone's wondering why the 3DMark is so low, I had max details and LOD -4
see my sig for real 3DMark scores )