Hi,
Not really, but you will probably find that a performance bottleneck in that system would be your old hard disk. I would suggest that you do buy at least 1 new SATA3 hard disk ( 6mbps ) transfer speeds+ for the operating system.
Also, check what the fastest ram you can plug I to your new motherboard is and buy that, front side bus speed is also important if you are gaming and want to squeeze as much out of it as possible.
As an example, my last computer was a n Intel p4 3ghz, average graphics card, 1gb hard disk. I was not playing any very new games but first person shooters is my preferred style.
I was getting around 25 frames per second on graphics and it was a bit choppy every now and again. So I bought a Gygabyte Geforce DDR3 460chipset 1GB card. This improved the FPS to around 33, so better and wasn't choppy any more.
I later upgraded to an AMD 3.2 6core processor, mother board, 4gb ram. As a test I used the old graphics card and got about the same FPS, around 33 as the old computer. When I plugged in the new graphics card then I was seeing FPS rates of up to 300.
If you are not looking to squeeze every last bit out of it, then what you have will be good. If not..
1. FSB, this is the speed that the data can travel between components like, CPU, memory, graphics card
2. At least SATA3 spec hard disk or it's like having an F1 car, with a Fiat 126 engine. You'll get there eventually.. ( make sure the motherboard can support it also)
3. Running slower ram will force the motherboard to run at the speed of the slowest component.
All depends on what you will do with it. Also remember if the software you use does not take advantage of multicore processors or threading then you'll be running on 1 cylinder for that program.
4. Update you os to x64 bit to take advantage of other features..