AMD Radeon HD 7750 & Radeon HD 7770 GHz Edition Review: Evading The Price/Performance Curve
by Ryan Smith & Ganesh T S on February 15, 2012 12:01 AM EST- Posted in
- GPUs
- AMD
- HTPC
- GCN
- Radeon HD 7000
Final Words
Wrapping things up, I once had someone comment to me that they can gauge my opinion of a product based solely on the first paragraph of the final page. If I say “there’s no such thing as a bad card, only bad prices” then it’s likely not a favorable review. That statement is once more being validated today, if only in a meta context.
To be clear, we’ve been waiting for some time to see GCN filter down to lower priced cards, and even longer to see PowerTune in particular make it down here. The fact that we now have reliable power throttling and solid compute performance is not lost on us. It’s a welcome advancement.
However our expectation with a new manufacturing process – and perhaps we’re being greedy here – is that we’ll see cards become cheaper and we’ll see power consumption come down. AMD has achieved the second item in spades, and as a result both the Radeon HD 7750 and Radeon HD 7770 are well ahead of any competing 75W and 100W cards respectively. The 7750 in particular is a standout thanks to the fact that it generally offers 5700 series performance on a sub-75W card, and even at $109 it clearly offers a great deal of value as an HTPC video card. All of this will be an even more welcome change when Cape Verde filters down to laptops in the coming months.
The problem for AMD today isn’t the power/performance curve, it’s the price/performance curve. 16 months ago AMD launched the Radeon HD 6850 at $179 amidst fierce competition from NVIDIA. Ignoring the current price of the 6850 for the moment, on average the 7770 delivers 90% of the 6850’s gaming performance for 90% of the 6850’s launch price. In other words in 16 months AMD has moved nowhere along the price/performance curve – if you go by launch prices you’re getting the same amount of performance per dollar today as you did in October of 2010. In reality the 6850 is much cheaper than that, with a number of cards selling for $159 before a rebate, while several more 6870s sell for $159 after rebate. The 7770 is so far off the price/performance curve that you have to believe that this is either a pricing error or AMD is planning on quickly halting 6800 series production.
Now to be fair there’s more to consider than just performance in existing games. The 7770 supports DX11.1, VCE, PowerTune, Fast HDMI, and other features the 6800 series doesn’t have, and it does all of this while consuming around 25W less than the 6850. But that’s just not enough. DX11.1 is a point update that’s still the better part of a year away and will only offer a tiny number of new features, while VCE is AWOL and cannot be evaluated, and Fast HDMI will be a niche feature for use with extremely expensive TVs for some time to come. This is not like the 4000/5000 series gap – today and tomorrow the 7000 series will only offer marginal feature benefits. The best argument for the 7770 is the power difference, but considering that both the 6850 and 7770 require external power anyhow that 25W difference is unlikely to matter.
The 7700 series is a fine lineup of cards, but AMD has finally shot itself in the foot with its conservative pricing. The 7750 can ride on the sub-75W niche for now, but the only way the 7770 will make any sense is if it comes down in price. Until then AMD’s worst competition for the 7700 series is not NVIDIA, it’s their 6850.
With that said, the 7700 series clearly has potential. XFX’s R7770 Black Edition S Double Dissipation does a great job demonstrating this with its virtually silent operation, while the card’s factory overclock largely closes the performance gap with the 6850. With its combination of performance and power consumption the 7700 series will be AMD’s midrange workhorse for 2012, of that there is no question. Now it’s simply up to AMD to make it so. After all there’s no such thing as a bad card, only bad prices.
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rdh - Wednesday, February 15, 2012 - link
Bingo. But your numbers look at if you were to want to buy today. You might have bought the 5750 or 5770 at a significantly lower cost during a sale in the past 2.5 years. So individual price comparisons may be different than today's prices.IN ADDITION: the 7770 and 7750 require about 3% less power and produce frame rates about 10% higher than their 57xx counterparts. This is after the 57xx have been out for nearly TWO AND HALF YEARS. I purchased both (the 5750 for one system at $65 and the 5770 for another at $99) about 6 months after introduction. Two years later, there is no compelling reason for me to upgrade. That means AMD is only going to be selling these to new desktop purchasers.... a quickly shrinking market. This cannot be good for AMD.
CeriseCogburn - Saturday, March 10, 2012 - link
Since fps is your only metric, itself being a murky and disturbed error filled easily biased mess based upon game set, driver cheating, resolutions, and in game settings chosen, the entire price/perf chart is EPIC FAIL.When your drivers crash, when your game doesn't work, when new games don't work for weeks and months, when dual card drivers are absent, when features like PhysX are no can do - NONE OF IT IS ACCOUNTED FOR....
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Obviously all amd has to do is follow the simpleton idiot fps/per dollar formula for all the stuck cursor gsod fanboys to bloviate and screech they saved 20 cents... then the amd forum masters casn continue to lock them out, lock user problem threads, and smart off that "it's works for them on their eyefinity setup theya re starig at right now"...
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When a crazed, worship filled, religious zealoutry claims the heavens have opened on the cheap and the devil competition has lost all, beware...
Oh.. wait... sorry talking to the wrong person...
Roland00Address - Wednesday, February 15, 2012 - link
I am curious how high these cards will go before they hit the powertune limits.Ryan Smith - Wednesday, February 15, 2012 - link
I'm still writing up an addendum, but here's what I have for the 7770.Ref 7770: 1125MHz core, 4.8GHz memory
XFX 7770: No meaningful overclock on top of XFX's factory overclock. Crashed at 1160MHz core
As for performance, basically look at the XFX card.
Roland00Address - Wednesday, February 15, 2012 - link
Personally I find that the more interesting cardRyan Smith - Wednesday, February 15, 2012 - link
We didn't do any overclocking tests on the 7750. It was necessary to quickly test it in order to be able to ship it to Ganesh for HTPC testing.DarkSynergyt - Wednesday, February 15, 2012 - link
Might be a stupid question but can the 7750 output audio over HDMI? I'm in the process of building an HTPC and this is the final piece to the build.evilspoons - Wednesday, February 15, 2012 - link
My 6570 can and I'm pretty sure they said in the review that it has all the same features as previous generations for video features.ganeshts - Wednesday, February 15, 2012 - link
Yes, it does. With full bitstreaming options too (even WMA Pro). 7.1 channel LPCM support is also there. No worries. (Of course, hot plugging [ say, moving from a direct monitor connection to an AV receiver input ] causes the audio output to act crazy, but that is the case with every card. Reboot fixes the issue)evilspoons - Wednesday, February 15, 2012 - link
This really drives home how obsolete my GTX 285 is. The 7770 has about equivalent performance and uses *130 watts* less.I need a new video card, but I want to see what Nvidia has for us next - I'm not a fanboy (in spite of all my gaming cards since the 3dfx Voodoo 3 being Nvidia), I'm just genuinely hoping for either some competition to drive prices down or something better to blow us away. Come on guys, get a move on already!