Is there a huge improvement from Radeon 6770 to Radeon 7950?

#1 Edited by ghstbstr (8790 posts) -

I recently just bought PowerColor PCS+ AX7950 Radeon HD 7950 3GB for a total of only $110, which seems like a really good deal.

So would I see a huge improvement of fps and performance in games from the Radeon HD 6770 1GB to a Radeon HD 7950 3GB?

I am sure there will be a difference, but will it be a huge difference or not?

My current system is...

Dell XPS 8300 (X8300-7008NBK)

CPU: Intel Core i7-2600K 3.4 GHz

Graphics Card: ATI AMD Radeon HD 6770 1GB

RAM: 8 GB

HDD: 2TB

PSU: Dell 460W D460AD-00

OS: Win 7 Home Premium

#2 Posted by PfizersaurusRex (690 posts) -

Of course there will be a huge difference, 7950 is roughly 3x faster. But you'll need to change the PSU aswell, you can't run 7950 on a 460W Dell PSU.

#3 Edited by Weird_Jerk (594 posts) -

@ghstbstr: The difference is about medium settings (6770) -> high / very high settings (7950)**

I had a similar upgrade earlier last year (5770->660), and you will notice a substantial difference. Higher settings and more fps? Yes.

**running @1080p

EDIT: you may also consider upgrading to a slightly beefier PSU as well. 460W is cutting it close or going over with some of the higher-end GPUs, especially from AMD (my general rule of thumb is AMD's TDP = 115-120% Nvidia's TDP), as my sister's pc with a 965BE and my old 5770 wouldn't even post (got green lines and flashing colors) with her 400W OEM PSU, so she got herself a 430W (not my idea). I would also suggest going for a PSU with an 80 PLUS certification (Corsair CX/HX/AX series, SeaSonic, Thermaltake, Silverstone, etc.).

My best cost-efficient suggestion for your build would currently be the Corsair CX600. It's ~$50-60 now from Newegg, and even less if you do the MIR. Sorry if my points seem scrambled; been drinking :P

#4 Edited by Coseniath (940 posts) -

Hello.

As you can see clearly here your new GPU has 2,5 times more performance than your old 6770.

So your new PowerColor PCS+ AX7950 will provide 50fps in areas where your 6770 was providing 20 :).

Great price and great deal.

6770 is the same GPU as the 5770.

Have fun with your 7950 :).

#5 Posted by ghstbstr (8790 posts) -

Cool, thanks for the replays.

I can't wait to get my new card, and play games without low fps anymore.

#6 Posted by kraken2109 (13067 posts) -

You need a new power supply

#7 Edited by Coseniath (940 posts) -
@kraken2109 said:

You need a new power supply

@ghstbstr said:
PSU: Dell 460W D460AD-00

ehm. Yes you might need a new one. :P

Unless you got 2 x 6 pins connectors...

edit: Well maybe you don't. It seems you have the 2 x 6pins connectors.

From amazon: "Connectors: P1: 24 pin motherboard connector, P2: 4 pin connector, P3, P4, P5, P6: SATA connectors, P7, P8: 6 pin connector, P2 - 4-pin SATA connector"

Also your system should need around 360watt in an extreme case scenario with o/ced CPU, so you would be fine. But I would suggest when you have the money, try to replace the PSU with a more reliable one.

#8 Edited by ghstbstr (8790 posts) -

@Coseniath said:
@kraken2109 said:

You need a new power supply

@ghstbstr said:
PSU: Dell 460W D460AD-00

ehm. Yes you might need a new one. :P

Unless you got 2 x 6 pins connectors...

edit: Well maybe you don't. It seems you have the 2 x 6pins connectors.

From amazon: "Connectors: P1: 24 pin motherboard connector, P2: 4 pin connector, P3, P4, P5, P6: SATA connectors, P7, P8: 6 pin connector, P2 - 4-pin SATA connector"

Also your system should need around 360watt in an extreme case scenario with o/ced CPU, so you would be fine. But I would suggest when you have the money, try to replace the PSU with a more reliable one.

My current graphics card is an ATI AMD Radeon HD 6770 1GB and it uses the exact same connection as the PowerColor PCS+ AX7950 Radeon HD 7950 3GB. I have read that the Dell 460W D460AD-00 psu is actually a good psu even though it is low powered. I will get a new psu soon, but it will be a few months away before I can.

#9 Edited by Coseniath (940 posts) -
@ghstbstr said:

My current graphics card is an ATI AMD Radeon HD 6770 1GB and it uses the exact same connection as the PowerColor PCS+ AX7950 Radeon HD 7950 3GB. I have read that the Dell 460W D460AD-00 psu is actually a good psu even though it is low powered. I will get a new psu soon, but it will be a few months away before I can.

Yeap, thats why I edited my post and typed that you have no problem running the 7950.

I also typed the reasons you will have no problem :).

But going for a better PSU wouldn't hurt you. Its just not necessery atm.