PCMark05	Source: FutureMark

PCMark05 is a premium tool for measuring both normal home use and simple 3D performance of the latest PC hardware. There are 11 system tests - each one is designed to represent a certain type of PC usage. By running these tests, PCMark05 stresses the components in a similar manner as they are stressed in normal home usage.

PCMark05:
Overall	Points	Ranking
2x 512MB Mushkin PC2-4200 (200/533)	6103
2x 512MB Crucial Ballistix PC2-5300 (200/667)	6095
2x 512MB Corsair PC2-8000UL (200/800)	6142
2x 1024MB Corsair Twin2X2048-6400 PRO (200/800)	6139
2x 1024MB Corsair Twin2X2048-6400 PRO (231/935)	6326
Memory	Points	Ranking
2x 512MB Mushkin PC2-4200 (200/533)	4103
2x 512MB Crucial Ballistix PC2-5300 (200/667)	4126
2x 512MB Corsair PC2-8000UL (200/800)	4124
2x 1024MB Corsair Twin2X2048-6400 PRO (200/800)	4198
2x 1024MB Corsair Twin2X2048-6400 PRO (231/935)	4682

PCMark05's overall score stays about the same even when overclocked. The memory score gets a decent boost.

3DMark05	Source: FutureMark

3DMark05 is the latest version of the highly favoured 3DMark graphics benchmarking series. It is the first benchmark to require DirectX®9.0 compliant hardware with support for Pixel Shader 2.0 or higher.

3DMark05
Overall	Points	Ranking
2x 512MB Mushkin PC2-4200 (200/533)	7100
2x 512MB Crucial Ballistix PC2-5300 (200/667)	7155
2x 512MB Corsair PC2-8000UL (200/800)	7188
2x 1024MB Corsair Twin2X2048-6400 PRO (200/800)	7222
2x 1024MB Corsair Twin2X2048-6400 PRO (231/935)	7394
CPU	Points	Ranking
2x 512MB Mushkin PC2-4200 (200/533)	6124
2x 512MB Crucial Ballistix PC2-5300 (200/667)	6242
2x 512MB Corsair PC2-8000UL (200/800)	6173
2x 1024MB Corsair Twin2X2048-6400 PRO (200/800)	6232
2x 1024MB Corsair Twin2X2048-6400 PRO (231/935)	6544

3DMark05 numbers are very close despite the memory overclock. It just goes to show you that no matter how you equip a machine, the videocard is most vital for gamers.

Unreal Tournament 2003	Source: Epic

Unreal Tournament 2003 is the sequel to 1999's multiple 'Game of the Year' award winner. It uses the very latest Unreal Engine technology - where graphics, sound and game play are taken beyond the bleeding edge. Unreal Tournament 2003 employs the use of Vertex as well as Pixel Shaders and it's recommended that you use a DirectX 8 videocard to get the most out of the game.

UT2003
Flyby - 640x480	FPS	Ranking
2x 512MB Mushkin PC2-4200 (200/533)	242.74
2x 512MB Crucial Ballistix PC2-5300 (200/667)	250.28
2x 512MB Corsair PC2-8000UL (200/800)	252.31
2x 1024MB Corsair Twin2X2048-6400 PRO (200/800)	254.06
2x 1024MB Corsair Twin2X2048-6400 PRO (231/935)	289.28
Botmatch - 640x480	FPS	Ranking
2x 512MB Mushkin PC2-4200 (200/533)	81.5
2x 512MB Crucial Ballistix PC2-5300 (200/667)	84.6
2x 512MB Corsair PC2-8000UL (200/800)	84.87
2x 1024MB Corsair Twin2X2048-6400 PRO (200/800)	85.85
2x 1024MB Corsair Twin2X2048-6400 PRO (231/935)	97.66

UT2003 framerates do not budge when the system is installed with 2GB of memory, this game clearly does not need the extra memory. This isn't the case for all games though, so it pays to do some research.