for a budget gaming PC using either a radeon 7770 or a 7850 1GB. Which CPU should would be better for gaming? I know that IVB has better ipc than sandy but is it worth it for 300MHz less clockspeed and 1MB less cache? It's also $10 cheaper.
More about :ivy bridge celery sandy bridge pentium dual core
IB is 7-8% faster than SB which makes those two CPUs almost even with SB still being slightly ahead.
If the intent is to have a usable PC until you can afford a better CPU, go with the Celeron. If you plan to use whatever CPU you buy for the next couple of years, you might want to consider stepping up to i3 - about just as good as a same-clocked i5 would be for most games.