Vista 64 Bit 33 percent slower than XP 32 Bit?

Hi.

I'm a serious gamer, and I just bought my new PC. I've been wondering which OS to use?

(I normally install two windows operating systems in two partitions)

I like to use XP because it has had better benchmark results in gaming. Also I like Vista because I wanna use DirectX 10.

Sorrily, the only benchmark tool I have right now is 3DMark 2001 ( ) and so I used it on my XP 32 bit and also Vista 64 bit. The results are somehow shocking!

XP 32 Bit: About 39600

Vista 64 Bit: About 26300

Nothing is wrong about PC settings or drivers in any of the operating systems!

I have read benchmarks which compared Vista and XP, and the difference between them was about 5-10 percent!

Any ideas? Is there a solution for me to have better performance, AND, DirectX 10? If I use Vista 32 bit, does it make any difference with vista x64?


My PC:

- AMD Phenom X3 8650

- 4GB Corsair DDR2 800

- Inno3D GTX 260 Gold Edition

- ASUS M4N78


Thanks.

You didnt mention anything about some things that are known to improve performance.
Have you installed SP1? That helps performance quite a bit.
Have you turned off indexing? Also a killer.
What else is running in the background on Vista. Generally there are more things loaded but many can be turned off.
A defrag on Vista after the initial install is more helpful than on XP

Im sure there are a few more that I cant think off offhand but I run XP and Vista 32 and you are correct to question your numbers they do seem fairly far apart.

Also try to get a newer copy of 3d mark as several changes have been made to more accuratly reflect op system changes that have occured in the last 9 years.

Indexing and background is important.
I have 4G and it makes a difference.
Especially indexing. If it is indexing it is writing not reading your game to you in a timely fashion.