|CPU:||Intel E6400 Conroe, 2.12 GHz, 2 MB Cache|
|Motherboard:||ASUS P5W DH Deluxe BIOS 1407|
Intel i975X C0
|Video Card:||ATI Radeon X850XT PE PCI-E|
|Harddisk:||2x Seagate Barracuda 7400.7 80 GB [Raid 0]|
|Power Supply:||Thermaltake PurePower 680W|
|Software:||Windows XP SP2, Catalyst 6.10|
PerformanceIn the first test we evaluate how these modules do at their default settings, to establish a baseline performance value.
Next we tried how much further we could overclock at their default voltage and timings settings. A very impressive 750 MHz could be achieved. This is a very good result, demonstrating that the memory has a lot of headroom.
The next test demonstrates the maximum overclock possible on this memory at 2.4V. This RAM managed to break the magic 1 GHz mark, 1024 MHz to be precise, with 4-4-4-10 timings no less! But for some reason the memory did not overclock any further using looser timings, even to 5-6-6-16 there was no improvement. I was very happy that these modules could reach over 1GHz, especially on 667MHz dimms! I would have expected this kind of performance from 800MHz dimms.
Now it's time to find out how much the timings can be tightened. We found that at 2.4V the timings could be tightened to 3-2-2-4, which is the tightest timings the motherboard will allow. Unfortunately to manage this, 2.4V is needed, and the memory will not clock any faster than 540 MHz without becoming unstable at these extremely tight timings.
There are two tests that i carried out, both at 667MHz, but with slightly different timings; 3-3-3-8 Vs 3-3-3-12. I did this to demonstrate how slight the difference is because the default TRAS timing on these modules is 12, whereas most manufacturers use TRAS 8 when CL3 is used for their stock frequency. As you can see there is very little performance lost by going with TRAS 12, but it is an unusual set of timings for sure!
For further comparison, the test "JEDEC DDR2-533" shows a generic DDR-2 module running at JEDEC standard timings.
|Crucial Ballistix PC2-5300 2 GB Kit|
|CPU Clock &|
|8 x 410 4:5||512 MHz||4-4-4-10 2.4V||10081 MB/s||7468 MB/s||45.0 ns||620.1 fps||39094||16.953 s|
|8 x 400 4:5||500 MHz||5-5-5-12 2.4V||9713 MB/s||7285 MB/s||48.8 ns||607.2 fps||38779||17.515 s|
|8 x 425 1:1||425 MHz||4-4-4-12 1.8V||10131 MB/s||7758 MB/s||44.9 ns||640.2 fps||39419||16.641 s|
|8 x 400 1:1||400 MHz||3-3-3-8 2.4V||9850 MB/s||7312 MB/s||44.7 ns||609.9 fps||38663||17.375 s|
|8 x 375 1:1||375 MHz||3-3-3-8 2.2V||9216 MB/s||6840 MB/s||47.4 ns||570.4 fps||37347||19.125 s|
|8 x 333 1:1||333 MHz||3-3-3-8 1.8V||8200 MB/s||6079 MB/s||53.3 ns||514.5 fps||35390||20.890 s|
|8 x 333 1:1||333 MHz||3-3-3-12 1.8V||8171 MB/s||6070 MB/s||53.4 ns||513.9 fps||35168||20.937 s|
|8 x 266 1:1||266 MHz||3-2-2-4 2.4V||6620 MB/s||4870 MB/s||65.5 ns||413.0 fps||30960||25.922 s|
|JEDEC DDR2-533||266 MHz||3-3-3-12||6634 MB/s||4872 MB/s||65.4 ns||414.5 fps||30930||25.719 s|