G.Skill F2-4200PHU2-1GBNT

G.Skill F2-4200PHU2-1GBNT

Value and Conclusion »

Test Setup

Test System
CPU:P4 3.0E 1MB Prescott
Motherboard:ABIT Fatal1ty AA8XE i925XE
Memory:2x 512 MB F2-4200PHU2-1GBNT
Video Card:ATI Radeon X850 Pro PCI-E
Harddisk:Maxtor Diamondmax 160GB
Power Supply:HEC PurePower 475
Software:Windows XP SP2, Catalyst 5.13


As first test we ran the memory at 200 MHz, at the standard voltage of 1.8V, to see how it performs at everything set to stock. The next test determines the maximum overclocking at 1.8V, which is something you would experience if your motherboard does not allow memory voltage adjustments at all.
For the next three tests we raised voltage in steps to 1.9V, 2.0V and 2.1V. As you can see the overclock scales very nicely with voltage. Further increasing the voltage did not help much. At 2.3V we saw about 375 MHz which is not worth it for the reduction of life span this brings.
In the next test we reduced the timings to 3-3-2-4 which are the tighest timings this memory can run at. The best timings you can set in the Intel chipset are 3-2-2-4, so what is possible with this memory is close to the fastest setting possible.
Next we tried to relax the timings to 5-5-5-15 to find out if we could get a higher maximum overclock out of the memory than at 4-4-4-12 which isn't the case.

For further comparison, the test "JEDEC DDR2-400" shows a generic DDR module running at JEDEC standard timings.

CPU Clock &
Memory Ratio
Quake 3
Mod 1M
15 x 200 1:1200 MHz4-4-4-12 1.8V 5908 MB/s 4213 MB/s 100.4 ns 287.3 fps 2005744.41s
15 x 217 3:4290 MHz4-4-4-12 1.8V 6716 MB/s 4622 MB/s 85.7 ns 315.0 fps 2206039.92 s
15 x 235 3:4315 MHz4-4-4-12 1.9V 7292 MB/s 5021 MB/s 78.6 ns 344.5 fps 2364936.74 s
15 x 253 3:4337 MHz4-4-4-12 2.0V 7827 MB/s 5388 MB/s 73.1 ns 386.6 fps 2504334.13 s
15 x 272 3:4363 MHz4-4-4-12 2.1V 8365 MB/s 5757 MB/s 68.9 ns 392.2 fps 2619432.03 s
15 x 203 3:4 272 MHz 3-3-2-4 2.1V 6407 MB/s 4341 MB/s 84.3 ns 300.0 fps 2114641.80 s
15 x 272 3:4363 MHz5-5-5-15 2.1V 8276 MB/s 5778 MB/s 73.5 ns 390.0 fps 2615432.34 s
JEDEC DDR2-400 200 MHz4-4-4-12 1.8V 5902 MB/s 4215 MB/s 100.4 ns 287.5 fps 1991744.34 s

For an easier comparison with other modules, we set a maximum voltage of 2.1V and tested until we found the highest clock frequency and fastest timings for this memory. The benchmarks Everest Read, Everest Write and Quake 3 were run. We then calculated the performance increase in percent compared to a generic DDR2-400 memory running at JEDEC DDR2-400 (4-4-4-12). The average percentage of the three benchmarks is listed in following table:

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