Differences in OCed and stock

[igorm]

Hello again.

I was wondering how to find out the performance of an overclocked GPU prior to buying, just for the comparison? (Since it is possible to check performance of stock GPUs and I am interensted since all the game requirements are writen for stock GPUs and are not considering overclocking).

I am particulary curious in performance differences between Gigabyte ATI Radeon HD 7850 and stock 7950?

 

[weehamish]

Best place to check this is Google benchmarks they are all normally tested at stock.

A 7950 stock will still beat an oced 7850.

 

[Gregster]

I think you will be very hard pushed to find specific cards in benchmarks (unless it is a user who does it but that won't happen because all users are lazy and just play games).

The best way to look at it is to use vast skills in mathematics or look at this bench comparison and add a tiny bit to allow for overclocking from the factory

http://www.anandtech.com/bench/Product/549?vs=550

As you can see, clock speeds are shown and you can use math to see the improvement of a Gigabyte OC card over a stock 7950.

 

[Tonester0011]

You'd need a good 40% OC on a 7850 to match a "stock" 7950. So about 1200 on the core. Most 7950s unless reference dont come with 800mhz stock clocks though.

 

[igorm]

Yeah, 7850 is noticeably slower than 7950.

Is it worth geting 7950 with q6600 @ 3.2GHz at all? Or is processor will end up being a massive bottle neck and will stop having decent FPS in high end games? I was considering getting GPU slightly more powerfull than CPU to leave space for motherboard+CPU upgrade.

 

[Gregster]

Yeah, 7850 is noticeably slower than 7950.

Is it worth geting 7950 with q6600 @ 3.2GHz at all? Or is processor will end up being a massive bottle neck and will stop having decent FPS in high end games? I was considering getting GPU slightly more powerfull than CPU to leave space for motherboard+CPU upgrade.

If you are intending to upgrade your CPU and mobo, go for the 7950. If not, go for a 7850. Both of those cards will bottlenck on your Q chip but the 7850 would be a wiser choice if you have no intention of upgrading the Mobo and CPU.

 

[weehamish]

Q6600 is okish but will still bottleneck a 7850 so dont bother getting a 7950 lol.

 

[igorm]

Thanks a lot for wise advices.