[techpowerup] leaked Radeon HD 7770 Specifications and benchmark

[wahdangun]

Much like a previous exposé with Radeon HD 7950, the specifications of Radeon HD 7770 that were rumored in our previous article have been confirmed by users. It confirms several specifications, starting from the stream processor count of 640, to the 128-bit wide GDDR5 memory interface. The GPU has an out of the box core clock speed of 1.00 GHz, it could be possible that this is a factory-overclocked card, if not, the core clock speed rumor sparked off by the Verdetrol marketing campaign are true, after all.

MD's Radeon HD 7770 mid-range graphics card, which is slated for a little later this month, got its first public shot at 3DMark 11. The card was put through the Performance preset of the benchmark, where it scored P3535 points. The bench was probably driven by an Intel Core i5-2500 processor. The reviewer also took GPU-Z screenshots of this card, revealing low core temperature. Based on the 28 nm Cape Verde GPU, the HD 7700 is said to have 640 Graphics CoreNext stream processors, and 1 GB of memory over a 128-bit wide GDDR5 memory interface. It is designed for sub-$200 price points.

so it will be sub $200 and have performance between HD 6850 - HD6870

linky

 

[Lonyo]

It needs to have more performance than that if it want's to be a sub-$200 card rather than a sub-$150 card.

 

[WMD]

It needs to outperform the 6850 and the 5830 cleanly to justify its $199 asking price.

 

[chimaxi83]

Wow, that 3dmark score is right around stock 6850 level. Low, but it's just a synthetic bench I guess.

Are these 77xx parts supposed to be mid-range, or entry level?

 

[wahdangun]

It needs to have more performance than that if it want's to be a sub-$200 card rather than a sub-$150 card.

but isn't HD 5770 was launched at $160 ?? so its still somewhat in line with their previous pricing

It needs to outperform the 6850 and the 5830 cleanly to justify its $199 asking price.

yes. so we need to wait next week for clear benchmark from reviewer.

 

[wahdangun]

its suppose to be entry level to replace HD 6770

 

[AtenRa]

link plz

 

[chimaxi83]

Ah ok, that's what I thought. Low scoring card, if those screenies are real.

 

[wahdangun]

here is the link


sorry about that

 

[chimaxi83]

here's one, on TPU with source as DonanimHaber
and second, on TPU with source as VR-Zone

 

[MrK6]

In all fairness, the article says "sub-$200," but that better be very "sub-$200" if AMD expects these to sell. ~6850 performance at anything more than $150 is ludicrous.

 

[Borealis7]

i wonder how 2 of these would perform in CFX.

 

[wahdangun]

In all fairness, the article says "sub-$200," but that better be very "sub-$200" if AMD expects these to sell. ~6850 performance at anything more than $150 is ludicrous.

I dunno it will be sub $150 card, especially after HD 7970 pricing and after the fact that it will be released to replace older SKU that was launched around $160.

 

[wahdangun]

i wonder how 2 of these would perform in CFX.

I expect it to be faster than HD 5850 CF.

 

[chimaxi83]

It'd be pretty insane to price this anything past the $150 bracket considering potential performance around 6850 levels (if the numbers are true).

 

[Skurge]

it better OC a good 300mhz or it's not going to sell much. The low power use is pretty awesome though.

A 640SP, 128bit card that uses around 80W of power beating a 6850/gtx460 is actually pretty impressive, but that price isn't. Since it's based on GCN it should have more consistent performance and much much better compute performance.

 

[notty22]

I ran a single gtx 460@725 it scores 3321 in graphics score VS 3147 at the link.
With a single gtx 460@870 it scores 3964 in graphics
With a single gtx 460@920 it scores 4154 in graphics
This new card is faster than a 5770/6770 for sure, but not a big leap for a 3rd gen dx11 x770 card.

 

[blastingcap]

it better OC a good 300mhz or it's not going to sell much. The low power use is pretty awesome though.

A 640SP, 128bit card that uses around 80W of power beating a 6850/gtx460 is actually pretty impressive, but that price isn't. Since it's based on GCN it should have more consistent performance and much much better compute performance.

+1

 

[WMD]

I ran a single gtx 460@725 it scores 3321 in graphics score VS 3147 at the link.
With a single gtx 460@870 it scores 3964 in graphics
With a single gtx 460@920 it scores 4154 in graphics
This new card is faster than a 5770/6770 for sure, but not a big leap for a 3rd gen dx11 x770 card.

Also notice one thing: graphics test 1 score without tessellation is much higher on the gtx460! A 5850 overclocked scores almost double of 7770 in test 1 at 26fps! This means the 7770 will perform very well in tessellation bottlenecked benchmarks such as 3dmark and heaven but will fall behind in most real world games like BF3 that uses mild levels of tessellation or no tessellation.

How much is a gtx460 selling for now?

 

[-Slacker-]

I ran a single gtx 460@725 it scores 3321 in graphics score VS 3147 at the link.
With a single gtx 460@870 it scores 3964 in graphics
With a single gtx 460@920 it scores 4154 in graphics

3535 notty. Not 3147.

 

[WMD]

3535 notty. Not 3147.

Graphics score mate. That's the important one we are looking at.

 

[Arkadrel]

I thought the 460 1gb stock core clocks was 675mhz.

Seems the 460@725mhz is slightly faster with its 3321 score though.

 

[mkmitch]

MSI card $186. http://hexus.net/tech/news/graphics/35161-msi-radeon-hd-7700-series-cards-make-retail-appearance/

 

[notty22]

With a 2500 , the cpu physics tests will elevate the overall scores VS a i5 750, but even in Performance settings, the graphics test is pretty much gpu bound.

 

[Ieat]

If AMD is serious about these prices and Nvidia follows suit I'll be holding onto my gtx 460's for longer then any other card I've ever owned. lol