Test Setup

Test System
CPU:	Intel E6300 Conroe 1.8 GHz, 2 MB Cache
Motherboard:	ASUS P5B Deluxe BIOS 1004 Intel P965 C1
Video Card:	PowerColor X800XL Pro 16 PCI-E
Harddisk:	Samsung P80 80 GB
Power Supply:	Ultra V-Power 450W
Software:	Windows XP SP2, Catalyst 7.6

Performance & Overclocking

The first thing done, when testing this memory is simply running it at the rated speed. Starting with 1200 MHz and CL5-5-5-15 and 2.45V, the system booted right away. Note that I had to use 0.05V more than mentioned on the sticker. Winchip actually allows a +/- 0.1V to run this memory at the intended speed. The second step meant pushing the memory, to see how far it would go. Keeping the 2.45V setting and using a little active cooling, we I managed to raise the speed to 1240 MHz, while keeping the same timings. This may not seem much, but considering the bleeding edge of the memory, the small overclocking result was to be expected.

The next step meant dropping the memory to CL4-4-4-8 and trying various speed settings. Starting with the standard 1066 MHz, I was able to run the Winchip memory at 2.25V. This was then raised back to the maximum, while keeping the CL4 rating. The results were quite impressive with 1172 MHz at which it then ran stable on the Asus P5B. This is almost the rated speed, but at tighter timings.

The third step meant tightening the timings to CL3-2-2-4, which is the minimum the mainboard allows. The memory was set to 533 MHz and the voltage lowered as much as possible. The memory really loves and needs a bit more than default, as it only ran stable at 2.25V with these settings. To see how far I was able to take the timings, the voltage was raised back to the 2.45V and the MHz slowly raised to a whooping 640 MHz at CL3-2-2-4. Trying 667 MHz at these settings resulted in a non-booting system.

The timings were then loosened a bit to 3-3-3-4. while the voltage was kept at maximum. The results are 898 MHz at these settings. This is certainly very impressive.

Winchip DDR2 1200 MHz 2 GB Kit
CPU Clock & Memory Ratio	Memory Speed	Memory Timings	Everest Read	Everest Write	Everest Latency	Quake 3 Timedemo	3DMark 2001SE	SuperPi Mod 1M
7 x 310 1:2	620 MHz	5-5-5-15 2.45V	8299 MB/s	5517 MB/s	56.1 ns	428.1 fps	26979	24.63 s
7 x 300 1:2	600 MHz	5-5-5-15 2.45V	8016 MB/s	5377 MB/s	58.2 ns	418.2 fps	26485	25.45 s
7 x 320 3:5	533 MHz	4-4-4-8 2.25V	8231 MB/s	5812 MB/s	55.5 ns	438.7 fps	27598	23.88 s
7 x 293 1:2	586 MHz	4-4-4-8 2.45V	7992 MB/s	5333 MB/s	58.3 ns	409.6 fps	26299	25.95 s
7 x 299 2:3	448 MHz	3-3-3-4 2.45V	7609 MB/s	5429 MB/s	45.3 ns	416.1 fps	26344	25.59 s
7 x 320 4:5	400 MHz	3-3-3-4 2.45V	7248 MB/s	5799 MB/s	68.1 ns	429.9 fps	26173	24.64 s
7 x 320 1:1	320 MHz	3-2-2-4 2.45V	6365 MB/s	5787 MB/s	77.4 ns	425.5 fps	25690	25.00 s
7 x 266 1:1	266 MHz	3-2-2-4 2.25V	5352 MB/s	4836 MB/s	92.2 ns	354.2 fps	23287	30.02 s

This graph shows you at a quick glance which clock frequencies you can expect at which voltage. Please note that each individual module overclocks different, the results here can only be seen as an indicator of performance.