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
HQV 2.0 Benchmarking
HTPC enthusiasts are often concerned about the quality of pictures output by the system. While this is a very subjective metric, we have decided to take as much of an objective approach as possible. Over the last year or so, we have been using the HQV 2.0 benchmark for this purpose.
The HQV 2.0 test suite consists of 39 different streams divided into 4 different classes. The playback device is assigned scores for each, depending on how well it plays the stream. Each test was repeated multiple times to ensure that the correct score was assigned. The scoring details are available in the testing guide on the HQV website.
We first played back the benchmarking clips off the Blu-ray, but the scores recorded below are for standalone M2TS playback using CyberLink PowerDVD 12. Our take is that it is standalone files (such as those taken using consumer camcorders and smartphones) which require video post processing more than the already carefully transferred Blu-ray content. If certain driver post processing features are available only for Blu-ray playback, then, it is as good as not being available for consumers to take advantage.
In the table below, we indicate the maximum score possible for each test, and how much the 7750 was able to get with AMD's Catalyst 12.1-based launch drivers.
| AMD 7750 : HQV 2.0 Benchmark | ||||
| Test Class | Chapter | Tests | Max. Score | Radeon HD 7750 |
| Video Conversion | Video Resolution | Dial | 5 | 5 |
| Dial with Static Pattern | 5 | 5 | ||
| Gray Bars | 5 | 5 | ||
| Violin | 5 | 5 | ||
| Film Resolution | Stadium 2:2 | 5 | 5 | |
| Stadium 3:2 | 5 | 5 | ||
| Overlay On Film | Horizontal Text Scroll | 5 | 5 | |
| Vertical Text Scroll | 5 | 5 | ||
| Cadence Response Time | Transition to 3:2 Lock | 5 | 5 | |
| Transition to 2:2 Lock | 5 | 5 | ||
| Multi-Cadence | 2:2:2:4 24 FPS DVCam Video | 5 | 5 | |
| 2:3:3:2 24 FPS DVCam Video | 5 | 5 | ||
| 3:2:3:2:2 24 FPS Vari-Speed | 5 | 5 | ||
| 5:5 12 FPS Animation | 5 | 5 | ||
| 6:4 12 FPS Animation | 5 | 5 | ||
| 8:7 8 FPS Animation | 5 | 5 | ||
| Color Upsampling Errors | Interlace Chroma Problem (ICP) | 5 | 2 | |
| Chroma Upsampling Error (CUE) | 5 | 2 | ||
| Noise and Artifact Reduction | Random Noise | SailBoat | 5 | 5 |
| Flower | 5 | 5 | ||
| Sunrise | 5 | 5 | ||
| Harbour Night | 5 | 5 | ||
| Compression Artifacts | Scrolling Text | 5 | 5 | |
| Roller Coaster | 5 | 5 | ||
| Ferris Wheel | 5 | 5 | ||
| Bridge Traffic | 5 | 5 | ||
| Upscaled Compression Artifacts | Text Pattern | 5 | 3 | |
| Roller Coaster | 5 | 3 | ||
| Ferris Wheel | 5 | 3 | ||
| Bridge Traffic | 5 | 3 | ||
| Image Scaling and Enhancements | Scaling and Filtering | Luminance Frequency Bands | 5 | 5 |
| Chrominance Frequency Bands | 5 | 5 | ||
| Vanishing Text | 5 | 5 | ||
| Resolution Enhancement | Brook, Mountain, Flower, Hair, Wood | 15 | 15 | |
| Video Conversion | Contrast Enhancement | Theme Park | 5 | 5 |
| Driftwood | 5 | 5 | ||
| Beach at Dusk | 5 | 5 | ||
| White and Black Cats | 5 | 5 | ||
| Skin Tone Correction | Skin Tones | 10 | 7 | |
| Total Score | 210 | 193 | ||
We were not able to match what AMD claimed. In all probability, the difference is in the chroma upsampling scores. We already covered this in the Llano review. To recap, the image below is a screen capture while playing the HQV benchmark clip from a Blu-ray ISO on the AMD A8-3850. Note that the light red fringes along the edgs are uniform and extend to the right and the left before tapering off.
Now, let us look at the screen capture when the M2TS is played back using PowerDVD 12 on the Radeon HD 7750.
Zoom into the red stripes on the third row (in the original screenshot) and you can see for yourself that we have some ghost samples extending above and below the actual line of pixels. The screenshot is not at the exact timestamp as that of the Llano sample reproduced above, but the reader should be able to get a general idea of the problem we are hinting at. Readers interested in finding out more about the source of this problem should read up this excellent piece to get more information.
We notified AMD about this issue during the Llano review, but action doesn't seem to have been taken even after 6 months on what is clearly a driver issue. Note that we are not using MPC-HC (which might introduce its own errors in the renderer) in this case, but a standard off-the-shelf commercial player in CyberLink PowerDVD 12. Hopefully, AMD wakes up to this issue soon.
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Oxford Guy - Wednesday, February 15, 2012 - link
What I'd like to know is why the 7950 is shown in the Idle temp charts and then vanishes from the Load temp charts.Oxford Guy - Wednesday, February 15, 2012 - link
Sorry.. Power consumption charts.I'd like to see the 7950/7970 load power consumption. The idle consumption is less interesting and that's where they're shown.
dananski - Wednesday, February 15, 2012 - link
Me too, the 6850 was worse than the 5850, so I'd expected it to be easily beaten by this generation's 770. Then again, the 6770 was just a 5770, so I suppose I should've learned that the mid-range is barely moving.designerfx - Thursday, February 16, 2012 - link
if you think about the fact of it's price today then it will probably be down substantially in a month - at which point it'd be quite competitive.ce12373 - Wednesday, February 15, 2012 - link
Hmmm. This AMD story sounds like a lot of other AMD stories (cough*cough "BULLDOZER"). Maybe no one has piledriven the point home to AMD yet. Oh well.medi01 - Wednesday, February 15, 2012 - link
Right, and it's a long time that nVidiai stopped producing overpriced "you can fry pancackes with these" GPUs and even hold performance crown? Oh, it's still producing them and AMD still hold performance crown? What a pity.Oh, but AMD went nVidia route with "confuse consumer more" naming scheme? How shameless, do they pay royalties for this to nVidia, the inventor of this rubbish?
aguilpa1 - Wednesday, February 15, 2012 - link
AMD has been doing the name bait and switch just as long as Nvidia but since your such a fan boy apparently you haven't noticed. It is obvious from your overheated GPU remarks that you are stuck on some ancient review of a past Nvidia product. And again, AMD has done the same, also in the past, 2900XT anyone?CeriseCogburn - Wednesday, March 21, 2012 - link
The GTX 590 still holds the single card crown.The very strange situation that has occurred is amd holding the single core card crown with 7970, finally passing the 580 after a year or closer to two and I don't remember how long.
This single core crown is gone already gone with the GTX680 benches leaked a few days early.
So amd finally did hold a crown for once in a very long time, for a very short time, 2.5 months or so....with most of that time in very weak or absent stock on retail shelves.
Spunjji - Thursday, June 21, 2012 - link
BLAH BLAH BLAH BLAH BLAHReticence - Monday, June 24, 2013 - link
You realize you're kinda the laughing stock of anandtech right? You wait with baited breath for every post remotely including AMD somewhere in the article to give you the opportunity to suck off nvidia and intel. I literally think you might need psychiatric help with that raging superiority complex, then again I've always thought there should be specially designed concentration camps for people like you who never grew out of acting like a blow-hard highschool kid.Oh well, down to business.
Two 7970's (And I mean two 7970's, NOT a 7990) perform better than one Titan, EVERY benchmark has shown it, you can not deny this. And I already know what you're doing to say "BUT THAT'S 2 CARDS VS. 1, NOT FAIR ;[" But see, this is the main point that proves you're a major fucking moron. That.does.not.matter.at.all.
The the Titan is 1000$.
Two 7970's are 800$.
And while yes, it's impressive that a single card can hold it's own against two, it doesn't matter, who is going to spend 200$ more for LESS performance? I'm sure you'll also say "you're just an AMD fanboy." Wrong, I just don't like to waste my money. And I really, really, don't like you.
Nuff said.
Oh and by the way, read it and weep, pussy.
http://www.semiaccurate.com/forums/showpost.php?p=...″