Botleneck, Botleneck

Nokkie

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In two to thee months from now I'm going to upgrade my Computer to a totally new PC... :erm:

Anyway.. the reason why I am posting this thread is because I looked at different charts to see whether What is the highest performance card I can get for the Intel E6400 2.14GHZ Cpu currently its running with the 7900GT screen card but the newer games lags, totally. I was just thinking of upgrading the screen card.

I did look at similar models to get an idea but What I do want to know is... Till what performance level can you upgrade the screen card with the E6400 Before it starts to bottleneck.?
 
C2D processors are all more or less fast enough to keep pace with most graphics cards - until you hit extreme territory. You most likely won't see a bottleneck if you upgrade the gpu.
 
Best bet is to buy the new display card and test with the current processor. Use performance monitor to measure the Processor queue length (don't bother with the CPU % usage, it means nothing). If this starts to climb higher than 1 per physical processor, then your CPU is bottlenecking. If it does not, then you can assume that upgrading your CPU will offer only minimal (if any) gains to FPS.
 
is the CPU Bus PCI Express x16 Rev 2.0 compatible with the normal PCI Express x16?

Yes.

http://en.wikipedia.org/wiki/PCI_Express#PCI_Express_2.0
PCIe 2.0 motherboard slots are backward compatible with PCIe v1.x. PCIe 2.0 cards have good backward compatibility, new PCIe 2.0 graphics cards are compatible with PCIe 1.1 motherboards, meaning that they will run on them using the available bandwidth of PCI Express 1.1. Overall, graphic cards or motherboards designed for v 2.0 will be able to work with the other being v 1.1 or v 1.0.
 
If you buy a 4850 you will see an impressive jump in game performance without upgrading your processor.
 
Just BTW,

These E6400 oc like crazy.
I used to run my chip (stable) at 3.2GHZ, with Stock Cooling and standard voltage.
Core temps never over 60deg on load.
 
it at 3.2ghz, there's no such thing as a cpu bottleneck...unless u have a GTX295 MARS!!! :D

or a hd4890 xfire...etc etc
 
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