Comparing the 5870 to the 5970 shows that it's nearly a 100% improvement when you factor in the current costs, if you go just by the average frame rates.
5870 costs $410
5970 costs $600
(600-410)/600 = 31.7% increase in price
For Crysis at 1,680 x 1,050 4xAA 16xAF, DirectX 10, High Quality
The average frame rates where:
5970 -> 70fps
5870 -> 47fps
(70-47)/70 = 32.9%
So for a 31.7% increase in cost you obtained a 32.9% increase in performance.
I have not bothered to do this with any other cards or games or buyers other than Newegg so it likely isn't true across the board.
Originally Posted by feedayeen Comparing the 5870 to the 5970 shows that it's nearly a 100% improvement when you factor in the current costs, if you go just by the average frame rates.
5870 costs $410
5970 costs $600
(600-410)/600 = 31.7% increase in price
For Crysis at 1,680 x 1,050 4xAA 16xAF, DirectX 10, High Quality
The average frame rates where:
5970 -> 70fps
5870 -> 47fps
(70-47)/70 = 32.9%
So for a 31.7% increase in cost you obtained a 32.9% increase in performance.
I have not bothered to do this with any other cards or games or buyers other than Newegg so it likely isn't true across the board.
That's only really valid in the USA I think. Here in the UK you're looking at HD 5970 prices 66% more expensive than an HD 5870 (£500+ vs £300+).
Even then you're not taking into account that the HD 5970 is huge, hot and really loud, as well as a slave to Catalyst drivers when new games to come out, and still subject to crappy performance when CrossFire doesn't work. As the article says, when it works it's great but we'd rather pay our money for reliable performance than a lot more money for crazy performance that may or may not manifest itself.
The 5970 is designed to run at 5870 speeds, it is throttled back to meet PCI-E specs. With this in mind you are paying £100 less for equal performance. So the only reason for getting 5870 CF is if you can't fit the 5970 in your case or availability.
There seems to be new evidence also that 5970 VRM's are getting to hot which is causing some of the throttling in apps. Seem to be happening more on applications that really stress the card more than games example furmark.
Originally Posted by Initialised The 5970 is designed to run at 5870 speeds, it is throttled back to meet PCI-E specs. With this in mind you are paying £100 less for equal performance. So the only reason for getting 5870 CF is if you can't fit the 5970 in your case or availability.
It's designed to be overclocked, yes, but why don't any of the reviewing sites get their samples to run at 5870 speeds?
Also, if you are going to factor in overclocking, get an Asus Voltage Tweak 5870, and compare it with that. No way you'll run the two cores of the 5970 at 1000MHz...
good review but why do you test high end hardware on stock cpu power we all know currently that most gpu's are cpu capped and thats befoew another gpu monster is added.
please can you retest with more cpu power its a shame to waste so much hard work.
Comments 51 to 58 of 58
Reply5870 costs $410
5970 costs $600
(600-410)/600 = 31.7% increase in price
For Crysis at 1,680 x 1,050 4xAA 16xAF, DirectX 10, High Quality
The average frame rates where:
5970 -> 70fps
5870 -> 47fps
(70-47)/70 = 32.9%
So for a 31.7% increase in cost you obtained a 32.9% increase in performance.
I have not bothered to do this with any other cards or games or buyers other than Newegg so it likely isn't true across the board.
That's only really valid in the USA I think. Here in the UK you're looking at HD 5970 prices 66% more expensive than an HD 5870 (£500+ vs £300+).
Even then you're not taking into account that the HD 5970 is huge, hot and really loud, as well as a slave to Catalyst drivers when new games to come out, and still subject to crappy performance when CrossFire doesn't work. As the article says, when it works it's great but we'd rather pay our money for reliable performance than a lot more money for crazy performance that may or may not manifest itself.
Also, if you are going to factor in overclocking, get an Asus Voltage Tweak 5870, and compare it with that. No way you'll run the two cores of the 5970 at 1000MHz...
please can you retest with more cpu power its a shame to waste so much hard work.
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