Hello all and sorry for my bad english

I've recently bought a new pc (used) with this specifications:
OS: Win7 pro 64bits
Motherboard: Foxconn 2A8C
Bios: American Megatrends inc. V.6.05
CPU: Intel Pentium E5800 dual core 3.2GHz
RAM: DDR3 4Go
CG: Nvidia GeForce 210 (GT218) 1Go

This new config seems to be more perf. than my older:
Win Vista, dual core 2.4GHz, 2Go ram and an Ati HD2600 pro 256Mo graphic card...

But this is not ! With my old config, i've 45fps inline with 15 racers and 65fps max with all details in max, with the new one I got only 30-35fps and less with more cars, unstability... all drivers are updated, all is perfectly installed and my disk is empty, i dont know where is the problem, please help me ! Thank you

I'm sorry to say this, but your "new" computer might have even worse specs that your old one. The CPU is over 5 years old and the GPU is the worst in the line. I wouldn't be surprised if the older CPU (assuming it's a Core2 Duo) performed better at LFS than E5800.

OK, so their is no problem... I'm going to test with the ATI card.

Try in game shift+f11

I've installed the ATI card and now this is better ! That the same FPS than my old config. Worst GeForce 210... Thank !