AMD Radeon HD 7870 GHz Edition & Radeon HD 7850 Review: Rounding Out Southern Islands
by Ryan Smith on March 5, 2012 12:01 AM ESTOverclocking: Gaming & Compute Performance
As always we’ll keep the commentary thin here, but overall the overclocked performance of the 7800s looks very good, which is what you’d expect with a 15%+ core overclock and a 12% memory overclock. With the exception of Skyrim performance at 19x12, the overclocking performance increase for both cards is roughly split between the core and memory overclocks, meaning we’re seeing a 13.5% average performance increase for the 7870 and a 17% average performance increase for the 7850. As the 7800 series has the same number of ROPS as the 7900 series, it looks like we’re running headlong into the memory bandwidth bottleneck that makes the 384-bit memory bus on the 7900 series sing.
All things considered among our tests we have everything from even the 7850OC beating the GTX 580, to the GTX 580 still holding onto its lead versus the 7870OC. But even if you can’t beat a GTX 580 with a 7870OC you can get very close on a card that costs a good bit less.
Meanwhile for compute performance the gains are similar: 12.5% on the 7870, and 19.5% on the 7850.
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medi01 - Monday, March 5, 2012 - link
AMD released cards that are better than competitors in all areas: pricing, power consumption, performance, yet he found a way to be "dissapointed"You can't reason with fanboi.
Kiste - Monday, March 5, 2012 - link
You're the one who seems obsessed with which company releases the "better cards".I'm merely commenting on the 78xx line of cards, which I find underwhelming in terms of price/performance ration - and I am not alone wiht this if you bothered reading the other comments here.
So who's the fanboy?
formulav8 - Monday, March 5, 2012 - link
You are. Your annoying as well.chizow - Monday, March 5, 2012 - link
Try laying off the personal attacks and focus on the arguments instead.I don't see how anyone can defend the pricing of AMD's 7 series stack in good conscience though, if roles were reversed and Nvidia were the one doing this, EVERYONE would be disappointed too I'm sure.
Kaboose - Monday, March 5, 2012 - link
wasn't it everyone who said the 6000 series was too expensive back in october of 2010 and when Nvidia released the 500 series prices would come down a lot, then Nvidia released the 500 series right in between what AMD had and neither company really lowered prices for months. I think we will keep seeing more of that when the 600 series is released. This way BOTH companies profit.chizow - Monday, March 5, 2012 - link
Not sure what you're referring to, Nvidia launched GTX 570/580 before AMD launched the 6-series.And no Nvidia didn't raise prices on their 470/480 at the time which were at the same price points even though the 500 series extended that lead.
AMD priced the 6000 series accordingly, and I don't recall anyone complaining other than being disappointed it didn't offer more performance.
SlyNine - Monday, March 5, 2012 - link
5870 user here. What everyone defending the 7xxx node change doesn't consider that most of us dissopointed in SI are compairing it to other fab shrinks.Iketh - Monday, March 5, 2012 - link
You're on nvidia's payroll. Get off this site.sseemaku - Monday, March 5, 2012 - link
Are engineers in nvidia thinking in the same way and not releasing their cards! Good for AMD.medi01 - Monday, March 5, 2012 - link
7850 outperforms 570 while costing 80$ less.nFanboi much?