Futuremark 3DMark05 1.2.0	Source: FutureMark

3DMark05 is best suited for the latest generation of DirectX9.0 graphics cards. It is the first benchmark to require a DirectX9.0 compliant hardware with support for Pixel Shaders 2.0 or higher! By combining high quality 3D tests, CPU tests, feature tests, image quality tools, and much more, 3DMark05 is a premium benchmark for evaluating the latest generation of gaming hardware.

3DMark05
Overall:	Points	Ranking
Intel Core 2 Duo E6600	8045
Intel Pentium D 940	7700
Intel Pentium D 840	8562
AMD Athlon64 FX-60 (Socket 939)	12825
AMD Athlon64 4000+ (Socket 939)	7728
AMD Athlon64 FX-62 (Socket AM2)	7975
AMD Athlon64 X2 5000+ (Socket AM2)	7929
AMD Athlon64 X2 4800+ (Socket AM2)	7856
AMD Sempron 3600+ (Socket AM2)	7405
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory)	8643
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory)	8610
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory)	8100
Intel Core 2 Duo E6750 @ 3.8 GHz (Intel P35 Express DDR2 memory)	8676
CPU:	Points	Ranking
Intel Core 2 Duo E6600	9727
Intel Pentium D 940	6225
Intel Pentium D 840	6532
AMD Athlon64 FX-60 (Socket 939)	6867
AMD Athlon64 4000+ (Socket 939)	5365
AMD Athlon64 FX-62 (Socket AM2)	7533
AMD Athlon64 X2 5000+ (Socket AM2)	6575
AMD Athlon64 X2 4800+ (Socket AM2)	6716
AMD Sempron 3600+ (Socket AM2)	4869
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory)	11024
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory)	10988
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory)	10831
Intel Core 2 Duo E6750 @ 3.8 GHz (Intel P35 Express DDR2 memory)	12047

The overall score in 3DMark05 doesn't change much with overclocking, but in the CPU portion of the test the Intel Core 2 Duo E6750 really starts to fly when overclocked to 3.8GHz. At stock speeds the E6750 CPU is able to break a score of 10K, reaching almost 11k overall! Overclocked to 3.8 GHz and the CPU score jumps past 12k! The slower latencies of current DDR3 memory keep that system in third place of all the E6750 platforms we benchmarked.

Futuremark 3DMark06 1.0.2	Source: FutureMark

3DMark06 is the worldwide standard in advanced 3D game performance benchmarking. A fundamental tool for every company in the PC industry as well as PC users and gamers, 3DMark06 uses advanced real-time 3D game workloads to measure PC performance using a suite of DirectX 9 3D graphics tests, CPU tests, and 3D feature tests. 3DMark06 tests include all new HDR/SM3.0 graphics tests, SM2.0 graphics tests, AI and physics driven single and multiple cores or processor CPU tests and a collection of comprehensive feature tests to reliably measure next generation gaming performance today.

3DMark06
Overall:	Points	Ranking
Intel Core 2 Duo E6600	4463
Intel Pentium D 940	4346
Intel Pentium D 840	4212
AMD Athlon64 FX-60 (Socket 939)	7410
AMD Athlon64 4000+ (Socket 939)	3886
AMD Athlon64 FX-62 (Socket AM2)	4551
AMD Athlon64 X2 5000+ (Socket AM2)	4483
AMD Athlon64 X2 4800+ (Socket AM2)	4411
AMD Sempron 3600+ (Socket AM2)	3617
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory)	4831
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory)	4799
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory)	4539
Intel Core 2 Duo E6750 @ 3.8 GHz (Intel P35 Express DDR2 memory)	4844
CPU:	Points	Ranking
Intel Core 2 Duo E6600	2017
Intel Pentium D 940	1590
Intel Pentium D 840	1685
AMD Athlon64 FX-60 (Socket 939)	1981
AMD Athlon64 4000+ (Socket 939)	947
AMD Athlon64 FX-62 (Socket AM2)	2147
AMD Athlon64 X2 5000+ (Socket AM2)	1939
AMD Athlon64 X2 4800+ (Socket AM2)	1876
AMD Sempron 3600+ (Socket AM2)	783
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory)	2400
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory)	2402
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory)	2303
Intel Core 2 Duo E6750 @ 3.8 GHz (Intel P35 Express DDR2 memory)	3178

Again we see that overclocking does little to increase the overall score, but does a lot to boost the CPU score in 3DMark06. The Intel Core 2 Duo E6750 blasts past the E6600 and AMD Athlon64 FX-62 processors