AMD Radeon HD 7770 Pics, Specs and Benchmarks Leaked
With the HD 7970 set to release this month and HD 7990 & HD 7950 shortly after, we get our first leaked information on the HD 7770. It is the first upgrade to this series since the HD 5770 with the HD 6770 being a re-branded HD 5770.
ChipHell forum member bigpao007 has leaked some pictures and 3DMark results of the upcoming HD 7770. The HD 7770 is set between the current HD 6800 and HD 6700 series in AMD's graphics platform and is a more "budget" friendly GPU compared to the HD 7900 series. The GPU uses the new 28nm Cape Verde Southern Islands featuring the Graphics Core Next architecture.
The basic specifications of the card are as follows:
- Three display outputs, DVI, HDMI and miniDisplayPort
- Single Crossfire connector for 2 cards max
- The reference PCB has four GDDR5 memory chips, implying a 128-bit memory interface
- Single 6-pin PCI-E power connector
- Around 100W power consumption
The HD 7770 has the large cooling fan blowing directly on top of the GPU, which is a change from current HD 5770/6770 designs. The length of the card looks to match the HD 5770's size of little over 8 inches in length. The naked image of the PCB shows that the Cape Verde GPU is smaller than previous generation Juniper XT or even Nvidia's GF116 (Nvidia GTX 550 Ti). It looks like the GPU is under 150 mm2, while the Juniper XT sits at 166 mm2 and the GF116 at 230 mm2. This size decrease should help produce a nice-performing card that runs cool-n-quiet.
The setup used for the 3DMark Benchmarks consisted of an Ivy Bridge ES CPU – Core i5-3550K at 3.3Ghz and Z77 chipset-based motherboard, along with AMD Catalyst 8.940 RC2 driver.

3DMark 06: HD7770 (Stock @ 1Ghz): 18143 3D Marks (SM2.0: 6785/HDR: 8086/CPU: 6390)

3DMark 11 (Performance Preset): HD7770 (Stock @ 1Ghz): P3421 (3138 Graphics Score)

3DMark 11 (Extreme Preset): HD7770 (Stock @ 1Ghz): X1077 (965 Graphics Score)
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So I'm guessing (without having to do too much digging due to laziness) that this card will perform somewhere around or below the HD 6850?
So I'm guessing (without having to do too much digging due to laziness) that this card will perform somewhere around or below the HD 6850?
Below a 6850 and above a 6770. A "6830" to be more precise
@sseyler

My thoughts exactly
I went and looked at my own Sapphire 6850's 3DMark 11 score and it was a bit over 3600, so this new 7770 should be a worthy upgrade for anyone running the 5770/6770 cards. With a little touch of O/C it will be right up to the 6850's speed!
Now, if the price is right ... maybe around the $100 to $120 mark it will be a very solid performer!
Damn, so i am sticking to 5870 and will change at 8000 ati...in 1 year or more..
amd now improved good.
My GeForce 2 MX 440 just burned out. Guess this could be a good replacement.
Looks like a lollipop in the middle......
only dual card cfx?!? me sad. performance looks promising.
3 of these in tri-fire would be awesome.... i wonder if amd and oems will let tri-firing them....
Look! It's an Radeon 560ti or a GTX 7970!!!
No but seriously this card will bring some great performance.
Quad core i5 3550 with 7 series intel chipset? They use Ivy Bridge on this bench!
I always love that x770...... A GPU of performance, efficiency & price.
I was going to buy a 6850 this march in my trip to US, I guess this one is going to a better choice for the money... ONLY if the price goes about $120-$130..
Can I assume that due to the GPU change that it won't be Crossfire compatible with 5770/6770?
My GeForce 2 MX 440 just burned out. Guess this could be a good replacement.
I don't think they make the 7770 in AGP buddy.
The ASRock 775 Dual VSTA had PCI Express and AGP slots but had only 8 lanes. Can be done though.
AMD's new cards are complete failures, simply because they don't represent a true generational leap. The new 7850 should be faster than the existing 6850, especially if it's going to initially retail at roughly the same price. AMD has lost their bang-for-the-buck advantage in the video card market, and unless NVidia changes things up in a hurry, my next graphics subsystem will probably end up being integrated Intel in 2014 or so.
Voodoo Rush->Voodoo 3->overpriced crap->6800gs->8800gt->HD6850->overpriced crap so far. Show me the next 8800gt, please, or lose me forever.
w00t! Bring on the HD 7670!
AMD's new cards are complete failures, simply because they don't represent a true generational leap. The new 7850 should be faster than the existing 6850, especially if it's going to initially retail at roughly the same price. AMD has lost their bang-for-the-buck advantage in the video card market, and unless NVidia changes things up in a hurry, my next graphics subsystem will probably end up being integrated Intel in 2014 or so.Voodoo Rush->Voodoo 3->overpriced crap->6800gs->8800gt->HD6850->overpriced crap so far. Show me the next 8800gt, please, or lose me forever.
I disagree. So far, their performance has been a convincing increase. Do you need a 100% improvement to call it a generation leap? If so, you will be disappointed with every generation. If the 7770 is almost as fast as a 6850, it stands to reason that the 7850 will be faster. How much faster, and what the price point will be is the real question. Also, they are not concerned whether they lose you at all.
With the 6850 at ~$150, this card should be in the ~$90-100 range, assuming the 7850 will take over the ~$150 price point.
– so I'll give it a chance...
no more Epic NinJas.
The ASRock 775 Dual VSTA had PCI Express and AGP slots but had only 8 lanes. Can be done though.
I hate that board.
Approx $100 price point is the sweet spot for a LOT of people, expect a large number of gamers to flock to this card because it should have plenty of clout but not break the bank
Is it me or the TDP is a bit weird ? The HD6850 has a 127w TDP and is made using 40nm technology.
This HD7770 is built using 28nm technology, performs slightly worse and it's TDP is only 27w less ? Is it because it has much better tessellation or am I missing something ?
just a question, what kind of preformance do you think the witcher 2 would get on this card? im not saying i want to max it out, but i want large textures and i want it to play at 1920x1200 without a frame rate and mouse lag problem.
im asking this because witcher 2 is the only game i cant get reasonable frame rates out of unless i go to the lowest setting for that resolution, and the low resolution textures are... to put it lightly... remind me of the n64 era.
so you know my card is a 5770 hd, and i do not want to spend much over 100$ for a new gpu considering its only 1 game im getting it for... if it was anything but witcher 2, i wouldnt even consider the upgrade and call the game dead to me till my gpu failed and i was required to get a new on, i have done that with a few games in the past.
This HD7770 is built using 28nm technology, performs slightly worse and it's TDP is only 27w less ? Is it because it has much better tessellation or am I missing something ?
Better tesselation, reduced die size, higher clock, the list goes on mate
Better tesselation, reduced die size, higher clock, the list goes on mate
you forgot to mention that its only worse right now, a few driver updates, and it may be significantly better, and by significantly, i mean you can tell the difference.
I don't think they make the 7770 in AGP buddy.
I think (s)he had the pci version
The ASRock 775 Dual VSTA had PCI Express and AGP slots but had only 8 lanes. Can be done though.
No, the AsRock 775Dual-VSTA has 4 PCIe lanes. I've read the Radeon HD5770 works with the latest PC Treiber 3.19a custom Bios, but they have stopped updating the Bios, so nobody really knows if these new cards will work with the board.
Better tesselation, reduced die size, higher clock, the list goes on mate
Yes, but only improved tesselation can account for higher than expected TDP. This card will have a 128-bit memory bus, as opposed to the 256-bit in the HD6850. Add to that the reduced die size, as you say, should actually contribute towards even lower power consumption, right ? The higher clockspeed should should not influence much because this is a full node (40nm -> 28nm) improvement, and, as has been stated, this card performs between an HD5770, which works at 850 Mhz and has a TDP of 108w and an HD6850, which has a TDP of 127w.
Also, don't expect more than a 5-10% overall driver improvement over the commercial lifespan of the card (http://www.tomshardware.com/reviews/amd-catalyst-driver-performance-increase-radeon-hd-5870,2872-11.html).
"The HD 7770 is set between the current HD 6800 and HD 6700"
Realy?
Does it make sense that a 'larger' number is not the bigger, newer and more powerful toy ?
Or is this a typo and should be a 6770; which would than fit nicely into the numbering system.
Yes, but only improved tesselation can account for higher than expected TPD. This card will have a 128-bit memory bus, as opposed to the 256-bit in the HD6850. Add to that the reduced die size, as you say, should actually contribute towards even lower power consumption, right ? The higher clock should should not influence much because this is a full node (40nm -> 28nm) improvement, and, as has been stated, this card performs worse than an HD6850. Also, don't expect more than a 5-10% overall driver improvement over the comercial lifespan of the card (http://www.tomshardware.com/reviews/amd-catalyst-driver-performance-increase-radeon-hd-5870,2872-11.html).
Could be anything mate, more Stream Processors, ROPs, Texture Units, Increased Clock speeds...
The new 7970 performs faster, has a larger memory bus and still maintains the same tdp as the 6970...
http://www.tomshardware.com/review [...] ,3104.html
The 7770 performs worse, but close to the 6850, its got a smaller memory bus and probably uses much less power than the 6850 and about the same as 6770. Whether its tesselation or any of those components drawing more power I don't know... I think it could be anything, but there is improvement I'm sure!
Damn, so i am sticking to 5870 and will change at 8000 ati...in 1 year or more..
I have 2 5870s so once again no need to upgrade, thank you consoles