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
Miscellaneous HTPC Aspects
One of the nice aspects of the Radeon HD 7750 is the fact that AMD's excellent video post processing capabilities with respect to deinterlacing, cadence detection and noise reduction are carried over from the previous efforts without the introduction of any bugs. As such, deinterlacing is of the same quality as before, and we felt that there was no necessity to repeat screenshots very similar to what we already provided in our previous Llano HTPC review.
3D works very well, and is even more seamless compared to NVIDIA's implementation. I don't play 3D games, and my only interest from a HTPC perspective is playing back 3D Blu-rays. I found that simply clicking on the 3D icon in PowerDVD shifted my VSC-32 / Sony KDL46EX720 into 3D mode. There was no need to explicitly set up the 3D display as I had to do with the NVIDIA cards. This might be a drawback for people doing 3D gaming, but for 3D media watching this is as simple as it could be.
It is not that the 7750 is without its faults. For all practical open source software purposes, MPEG-4 decode acceleration is absent even though it is a feature of UVD3. The Catalyst 10.4 release notes promised support for H.264 L5.1 stream decoding. However, consumers soon discovered that enabling DXVA decode for 4K clips often ended up in a BSOD. AMD has quietly slipped this under the radar, and now officially states that 4K decode is not officially supported for the time being, however this appears to be a matter of validation rather than hardware limitations. That said, we did see that trying to decode a 4K clip now no longer results in a hard BSOD.
The 7750 also has support for HDMI 1.4a's full specifications. This means that the GPU can drive resolutions of up to 4096x2160 at 24 fps and 3840x2160 at 30 fps over a single HDMI port! I am currently aware of only one HDMI sink supporting this over a single HDMI link, namely, the Sony VPL-VW1000ES projector. Users on AVSForum are already reporting success with driving 4K over a single HDMI link using the Radeon HD 7970, and I expect the 7750 to have no issues either. That said, if we do get access to this projector system, the 7750 will be one of the first HDMI sources to get connected to it.
I recently set up a 2x2 Eyefinity system using the 7950 to drive QFHD videos onto the displays. I was very impressed with the quality and ease of setup. Frankly, I am more excited about 4K compared to what I felt about 3D when manufacturers were trying to push that down the throat of the consumers. In my opinion, 4K (QFHD) with 2x2 23" 1080p thin bezel monitors will become a very cost effective solution for those looking at 4K for the desktop. In that respect, it is a bit disappointing that the 7750 we tested today can't drive four displays without a DisplayPort MST hub.
It is a little bit interesting to compare the GT 520 with the AMD 7750 with respect to readiness for 4K. While the GT 520 has full hardware decode acceleration for 4K videos, it is unable to push out the 4K material to the display(s). The HDMI 1.4a PHY in the GT 520 can drive only 1080p monitors and there is no way to drive four displays with it. The 7750, on the other hand, can drive 4K displays through HDMI right now (and to four monitors using an MST hub down the road), but it is unable to accelerate the decode of those videos. It will be interesting to see what NVIDIA has in store for the HTPC fans down the road. Can they deliver working cards and drivers before AMD fixes its driver issues? It is going to be a very interesting year ahead.
As a summary for our HTPC section, we have to say that the Radeon HD 7750 is an excellent addition to our HTPC testbed. It will definitely be the one to compare against when the new cards from NVIDIA and Intel's Ivy Bridge CPU come out over the next few months. We just hope that AMD will be able to get its driver act together before then.
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ArizonaSteve - Wednesday, February 15, 2012 - link
Time for the DOJ to start looking into the price fixing that's going on here.A5 - Wednesday, February 15, 2012 - link
Price fixing is explicit, purposeful collusion between 2+ manufacturers to set prices at an unnaturally high level. For an example, see the memory market in the early 2000s.That is not what is happening here.
mattgmann - Wednesday, February 15, 2012 - link
Both of these companies settled price fixing lawsuits in 2008 under similar circumstances. They've cheated before; don't be surprised if they're cheating again.mckirkus - Wednesday, February 15, 2012 - link
If Coke and Pepsi both start pricing cans of soda at $50 each, doesn't mean people will buy them. The 7770 is a $50 can of soda.CeriseCogburn - Wednesday, March 21, 2012 - link
Yeah sure is price fixing when the always victorious gtx460 is $110 bucks and beats the 7770 every time and there's a large stock available...Or the other, triple fan GTX580 at the egg for $359, and the other reduced way down from $500.
AMD is scalping we customers even now and has been since before this review.
chizow - Wednesday, February 15, 2012 - link
There's an easy solution to price fixing: Don't buy at their asking price, or buy the faster, last-gen for cheaper.Its not like GPUs go bad like produce or get consumed like oil. Just keep using whatever you have in your rig now, because chances are its just as fast at a cheaper price than what AMD is asking for these "new" next-gen parts.
Iketh - Thursday, February 16, 2012 - link
meh I'm not worried about it just yet, it's too early... I bet it's because of poor yields, which would make the pricing legitimate... remember it's a new arch on a new nodeif the situation is the same in a month or 2, i'll be among those complaining
akbo - Wednesday, February 15, 2012 - link
I guess AMD is gonna let go of the old 6850 quick, 'cause no one is gonna buy it with this prices. Perf/watt very good tho, although mem bandwith very dissapointing. DDR4 is not coming soon enough, let alone GDDR6. 128 bits are simply not enough and 256 bits is adding more power/complexity. Can't wait for the day when GDDR6 comes and hopefully doubles bandwith for lower power/efficient clock speed. Oh, and gpu companies, when that day comes, don't be stingy like you always are and end up giving us 64 bits instead.silverblue - Wednesday, February 15, 2012 - link
Bring back TBDR and you won't need stupidly wide memory buses. ;)Roland00Address - Wednesday, February 15, 2012 - link
This is figuring out the price per performance, how many dollars you have to spend to get each FPS. Using Anandtech's Crysis: Warhead: 1680x1050 Gamer Quality Everything, Enthusiast Shaders+4xAA (Lower is better since you get a better bang for your buck.) Prices are from Newegg, using the cheapest card out there, no MIR are factored in, price includes shipping. Notes the 7750 and 7770 are not on newegg yet, so I am using the MSRP with no shipping to figure out the FPS per dollar. The GTX460 is using an older anandtech test since it is no longer using the more recent benchFPS Per Dollar/Video Card/FPS/Price/Shipping/Total
$3.81 Radeon 5750 28.1 99.99 6.98 106.97
$3.23 Radeon 5770 32.5 104.99 0.00 104.99
$3.23 Radeon 6850 45.7 139.99 7.56 147.55
3.01 Radeon 6870 53.1 159.99 0.00 159.99
3.46 Radeon 7750 31.8 109.99 0.00 109.99
4.35 Radeon 7770 36.8 159.99 0.00 159.99
3.88 Geforce GTX550 TI 32.7 119.99 6.98 126.97
3.56 Geforce GTX460 1GB 41.4 139.99 7.56 147.55
3.65 Geforce GTX560 48.5 169.99 6.98 176.97
As you can see, the Radeon 7750 is actually a very good card for its price. It beats the old Radeon 5770 series, and all the Geforce only losing to the Radeon 6800 series in the terms of value. Don't forget though the Radeon 7750 can be single slot, doesn't need a 6 pin, and generates less noise and heat.
The 7770 on the other hand is the most expensive card in the terms of value. Notice that Geforce cards have a higher dollar per fps (they have less value), for the Radeon card to succeed it only has to compete with Geforce since Radeon still makes money if you buy one of the other Radeon cards. If the 7770 was priced at 131.01 it would have identical value as the gtx460 1gb, and 142.78 if the card was priced against the value of the GTX550 TI.
I wouldn't be surprised that the Radeon 7770 will drop to the 139.99 or 149.99 price range once all the older 5700 series and 6800 series leave the channel. I do not think we are going to see much cheaper 7750s though since it is a recycled part and its price per performance is very good already. OEMs are going to be eating up the 7750s like candy.