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Possible AMD Radeon HD 7700 Series Specs Revealed

by - source: 3DCenter.org

With AMD reportedly set to release its Radeon HD 7700 series next week, we get our first peek at the specifications of the HD 7770 and HD 7750.

As report first of February in a leaked roadmap, AMD is set to release its HD 7700 series graphics cards based on the Cape Verde. Based on information coming out of German-based 3dcenter.org, we may have our first glimpse at the full specifications for the new Cape Verde series. The HD 7700 series will utilize AMD's GCN stream processors seen with the HD 7900 series. With the HD 7770 series, you'll have a base core-clock speed of 1 GHz, with performance falling between the HD 6850 and HD 6790, at a suggested price around $150 dollars. The HD 7750 should equal performance of the HD 6770/5770 in performance, at a suggested price of around $125 dollars.

Cape Verde Physical

  • Built on TSMC 28 nm process, ~1.5 billion transistors
  • 10 Graphics CoreNext Compute Units (CUs)
  • 640 stream processors
  • 40 TMUs, 16 ROPs
  • 128-bit wide GDDR5 memory interface

  

Radeon HD 7770

  • All CUs enabled, 640 stream processors
  • 1 GB GDDR5 memory
  • 40 TMUs, 16 ROPs
  • 1000 MHz core clock-speed
  • 1125 MHz (actual), 4500 MHz (effective) memory clock-speed
  • 72 GB/s memory bandwidth
  • 1280 GFLOP/s single-precision floating-point performance
  • Typical board power: 80W

  

Radeon HD 7750

  • 8 CUs enabled, 512 stream processors
  • 1 GB GDDR5 memory
  • 32 TMUs, 16 ROPs
  • 800 MHz core clock-speed
  • 1125 MHz (actual), 4500 MHz (effective) memory clock-speed
  • 72 GB/s memory bandwidth
  • 819 GFLOP/s single-precision floating-point performance
  • Typical board power: 55W

  

Please keep in mind, of course, that these specifications are from 3dcenter's supposed reliable source. We won't know for sure until AMD shows its hand. Stay tuned!

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lashabane 02/10/2012 10:12 PM
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Anonymous 02/10/2012 10:14 PM
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tehfatkid 02/10/2012 10:16 PM
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-20+

Teholl, you have to remember that current pricing is after products have been out and, thus, prices can drop accordingly. New generations typically cost more than the parts they replace.

Anonymous 02/10/2012 10:29 PM
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-1+

only care if they release a single slot, high performance and low watt consumption. otherwise im not interested in a "uber" graphics if they eat more space and lot of energy.

festa_freak 02/10/2012 10:31 PM
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-11+

I'm waiting to upgrade my 4870 (which coincidentally is being shipped to visiontek for warranty repair). I want to upgrade to a 7870. It's the perfect performance/price ratio for me. My 4870 was STILL performing very well.

hannibal 02/10/2012 10:45 PM
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-9+

tehfatkid :
Teholl, you have to remember that current pricing is after products have been out and, thus, prices can drop accordingly. New generations typically cost more than the parts they replace.



That is true most often! Anyone remember Nvidia 8800 to 250 transition. At first 250 was more expensive and became cheaper when older stock tryes out. Guite normal procedure. Fierce competing situation can change the situation, but there seems not to be one in sight at this moment...
*sigh*

aaronstyle 02/10/2012 10:46 PM
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-8+

I would love a new 7xxx series card. I'm happy with my MSI gtx 460, and it works well enough. If I can get something that's going to use less power, and work better, I am all for it. I think I'm going to wait to see NVidia's rebuttal, to make my choice. By then, maybe prices will drop, from AMD, to put pressure on Nvidia, and that way everyone will win. To hell with fan boys, long live competitive pricing. No reason to run SLI to get the same performance as a single gpu, that is less power hungry.. (no micro stuttering, either)

jryan388 02/10/2012 11:00 PM
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-9+

The X770 has been the same for three generations...

jrharbort 02/10/2012 11:05 PM
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-10+

I'm impressed that they managed to make a card equal to the 5770/6770 in performance, and cut the overall TDP in half. I smell a new HTPC and budget gaming favorite.

jryan388 02/10/2012 11:09 PM
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-1+

K, the 7770 has almost the same price as the 5770 did when it was released [i]two and a half years ago[/b] and performance is supposed to be the same. That's not what I call progression.

EDIT: Sorry, I misread the 7750 performance as the 7770 performance.

Anonymous 02/10/2012 11:14 PM
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-7+

You guys are misreading this.

The 7770 is faster than a 6850.

the 7750 that's 5-0 is as fast as the 6770 that's 7-0 of the prior generation.

tehfatkid 02/10/2012 11:15 PM
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-3+

Jryan, how is performance the same? Is the 5770 between the 6790 and 6850 in performance?

becherovka 02/10/2012 11:15 PM
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K, the 7770 has almost the same price as the 5770 did when it was released [i]two and a half years ago[/b] and performance is supposed to be the same.

"The HD 7750 should equal performance of the HD 6770/5770 in performance"

DSpider 02/10/2012 11:22 PM
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-10+

What don't you understand? Performance-wise:

5770/6770 -> 6790 -> 6850


7770 falls between 6790 and 6850.

7750 is around 5770/6770.

fonzy 02/10/2012 11:28 PM
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-6+

I think I will wait until the 7850 drops below $200 then I will purchase.

DSpider 02/10/2012 11:30 PM
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-9+

Bring on the benchies!

rangas 02/10/2012 11:34 PM
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-7+

all i want is a special edition Radeon HD 7777 or something

Plasmid 02/10/2012 11:46 PM
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-3+

Fucken hell I just bought a gtx 460 v2 and this things are popping out now T_T.

RockNRollz 02/10/2012 11:52 PM
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-4+

7850 is where I am going to. Hopefully Nvidia's release will bring it to sub-$200

alidan 02/11/2012 12:08 PM
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hdawood 02/11/2012 12:20 PM
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-9+

7750's power envelope is well within 75W max the MB can provide. If the specs are correct this could be the fastest GPU that doesnt require a dedicated power connector! Nice :)

bak0n 02/11/2012 12:24 PM
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time to get a couple 7750's if they single slot them for my BTX's!

memadmax 02/11/2012 12:28 PM
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Anonymous 02/11/2012 12:42 PM
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hotsacoman 02/11/2012 12:48 PM
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-0+

festa_freak :
I'm waiting to upgrade my 4870 (which coincidentally is being shipped to visiontek for warranty repair). I want to upgrade to a 7870. It's the perfect performance/price ratio for me. My 4870 was STILL performing very well.



Seriously. My 4870x2 still performs at 5870 levels, albeit with no DX11 (probably why, ha) and sticking with my native res of 1680x1050 without AA, the performance is great, even in BF3. I'm waiting until Max Payne 3 is released in March to perhaps get a 7970 or better. Who knows...if your 4870 can't be repaired, they might send you a newer generation card. Here's hoping that's the case, and that Rockstar optimizes their RAGE engine a little better for PC's this time.

hotsacoman 02/11/2012 12:50 PM
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-0+

Ok. I'll be waiting until May actually, ha.

alextheblue 02/11/2012 3:25 AM
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memadmax :
WTF AMD????"with performance falling between the HD 6850 and HD 6790"The way I see it, you slowest next gen video card should perform faster than last gen's fastest..... otherwise you make urself look like an ass............

Troll here often?
Teholtheflamed :
I didn't troll or make any otherwise anti-AMD comments, and yet I got a bunch of thumbs-down, as if I flamed. Good job, fanbois. My point, was that a 6850 can be purchased from Newegg for less than $150. If the 7770 has a suggested retail price of $150, it seems a little odd, no? That's all.I bought my HD 4850 in July of '09 for $100, 512MB version. I'm just looking for better prices so I can upgrade in my price segment and have it be worth it three years later . . .what is so wrong about that?

Previous gen hardware is typically cheaper than equal-performing new releases, especially if they include new architecture and are more power/heat efficient. This is quite common, at least until vendors sell down the older stuff. So buy the older stuff and get a better deal now, suck it up and buy the newer gear, or just continue to wait. Either way it doesn't make a lot of sense to whinge about it.

matt_b 02/11/2012 3:45 AM
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Teholtheflamed :
I didn't troll or make any otherwise anti-AMD comments, and yet I got a bunch of thumbs-down, as if I flamed. Good job, fanbois. My point, was that a 6850 can be purchased from Newegg for less than $150. If the 7770 has a suggested retail price of $150, it seems a little odd, no?


You're not really making a whole lot of sense out of this situation. Typically, performance of newer tech matches the price (or close to it) of what is being replaced regardless of model number. A 7770 will not cost the same as a 6770 when it is released because it will be a more powerful/newer card. The price is about the same as the 6850 because the performance of each card will be about the same. Add in some new features, cost of designing a newer card and/or architecture, some tweaks here and there, then there is the justified marginal price increase. The MSRP of the 7770 is assumed to be around $150, but that is just speculation. We obviously don't know the actual price yet, but MSRP is generally a little higher than actual anyway (especially when rebates kick in).

metaldave 02/11/2012 4:18 AM
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.......and now we know what the final Wii U GPU will be: the HD 7750

GFlOPS pretty much match what the early overheating dev kits had in them (which was a rumored HD 4850). This card runs a lot cooler with similar performance, less watts and a low price. The new Wii U dev kits could very well be based on something very similar albeit being a custom GPU of course. Nice!

nottheking 02/11/2012 4:47 AM
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-1+

I think AMD needs to try consolidating its lineup to make it far less confusing here. Each new generation now sees a 900, 800, 700, 600, and 500 GPU available retail, with the exact spacing between them rather variable; the only certainty is that there's a solid progression. I think AMD should re-think and work on focusing making each section target a specific audience; 900s for the extreme crowd, 800 for the "bang-for-the-buck" performance crowd, 700/600 for more mainstream/midrange, and 500s for cheap, cool-running cards; perhaps targeting the HTPC crowd. (And of course, 400/300s can remain garbage OEM toss-ins)

The problem I see here is that Tahiti has 32 cores, (2048 SPs) and Pitcairn 24, (1536) yet we suddenly drop down to 10 (640) for Cape Verde. While so-far, cut-down versions of Pitcairn can have as few as 1280 SPs (20 cores) that still leaves us a huge gap: enough that even one or two more cards (a Radeon 7830?) really isn't going to fill it.

That, and I still remain a bit dubious about this information. After all, I still can't help but note that the Cape Verde Islands are very much NORTHERN Atlantic Islands, not SOUTHERN. So what's to say they're guaranteed to be using GCN instead of VLIW4?

metaldave :
.......and now we know what the final Wii U GPU will be: the HD 7750


If the Wii U is coming out this year, it won't be a 7000-series card. Given the much-lengthier development cycles for complete consoles (since there's multiple components, PLUS the integration of them all) by necessity they have to use more dated components. Otherwise you'd wind up with a sort of "Duke Nukem Forever" issue. A classical example is the PS3 using a G71 when G80-based GeForce 8800s were out and about.

Cazalan 02/11/2012 6:07 AM
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-1+

Pretty good stats if that's accurate. They cut 30 watts off the 6670 and added ~20-30% or more performance. Not bad for a 128bit card.

I'm waiting for the 7850 but that's rumored for March.


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