ATI radeon 7770

[Deleted]

So yeah, i want to get this monster on launch to replace my 5770, especially for the low price.

this is my system: ATI radeon 5770, AMD phenom 2 x4 965, 8gb, would it be a good choice? or should i just get another 5770 to crossfire?

[lockblock]

What do you plan on using it for?
Personally I would crossfire or just get a 69(50 or 70).

[Rennadrel]

Seeing as how a 7770 has not even been announced for release, I doubt you will see it for some time. They are focusing on enthusiasts range still, not budget.

[Roflomnom]

PCIe 3.0 isn't a performance increase unless you are SLIing/Crossfiring.

[Deleted]

http://www.amd.com/uk/products/deskt...deon-7970.aspx

[Drunkenvalley]

http://www.amd.com/uk/products/deskt...deon-7970.aspx

Err... yeah? o.o Care to explain the relevance? c_c;

/dun' get it

[apepi]

http://www.tomshardware.com/news/AMD...ard,14596.html

Seems like it is supposed to come out this month.

[Maleia]

Save yourself the cash, get a 6950 with dual booting firmware (like from Sapphire). Honestly.~ By a 77xx or higher when they are $250.~

[Keller]

Seeing as how a 7770 has not even been announced for release, I doubt you will see it for some time. They are focusing on enthusiasts range still, not budget.

Yeah, no, it's coming out on the fifteenth this month, however they are holding out on 7790 and 7890 which are basically a underclocked 7850/7950 with some locked shaders. They're releasing those in Q2 this year, i'm on the 7770 bandwagon aswell.

[Auralian]

Fudzilla

If you can hold your breath until February, it looks like AMD will introduce the smallest 28nm graphics chip at a very affordable price.

The Radeon HD 7770 is based on the Cape Verde XT chip and it should end up clocked at 900MHz. It has 896 stream processors as well as 56 texture units and 16 ROPs. The memory is clocked at 1375MHz (5.5GHz GDDR5 effective).

Since the card is trimmed to a 128-bit memory interface, its memory bandwidth is 88GB/s and it comes with 1GB memory. It should start selling at some point in February for $149.

The runner up is HD 7750 based on Cape Verde PRO, works at 900MHz has 832shaders, 52 TMUs and 16 ROPs. The memory works at 5.0GHz bringing the total possible bandwidth to 80 GB/s for its 1GB of memory. This one will sell for $10 less, or $139.

Of course, for more demanding users Pitcairn cards will be the preferred choice. The HD 7870 and HD 7850 feature a 256-bit memory bus, along with more shaders and higher clocks. They will sell for $299 and $249 respectively.

There are more details to follow, but we know that Pitcairn should also come in February and that the chip measures 245 square millimeters.

Worth the wait to see how the perform, I wouldn't mind uping my sons comp a little on the GFX side.

[OhpUldum]

I'd be interested to see how it performs against the HD5770 and 6770.

[kidsafe]

A $150 28nm HD 7770 should be compared to a $150 40nm HD 6850. The pixel fillrate is concerning even considering the architectural difference. My guess is that a stock HD 7770 will achieve 75-80% the frame rates seen in an HD 6850 while initially costing more. Not compelling unless they overclock very well or come down about $30 in price.

HD 6850:
960 SPs
48 TMUs
32 ROPs
775MHz core
1GB RAM @ 1000MHz
256-bit memory bus

vs rumored HD 7770:
896 SPs
56 TMUs
16 ROPs
900MHz core
1GB RAM @ 1375MHz
128-bit memory bus

HD 6850 = 24.8mpixels/s, HD 7770 = 14.4mpixels/s
HD 6850 = 37.2mtexels/s, HD 7770 = 50.4mtexels/s
HD 6850 = 128GB/s memory bandwidth, HD 7770 = 88GB/s memory bandwidth

[Rennadrel]

I'd be interested to see how it performs against the HD5770 and 6770.

It would be substantially further ahead of the 5770 that much is for sure, I found that card to struggle with games like Metro: 2033, a 7770 is probably 20-30% more powerful considering how the performance gains go from generation to generation.

[kidsafe]

Different rumored specs:
1280 SPs
80 TMUs
16 ROPs
1000MHz core
1GB RAM @ 1150MHz
128-bit memory bus

That would mean 16mpixels/s, 80mtexels/s, 73.6GB/s memory bandwidth. I'd then assume performance would be closer to the HD 6850, and a price of $150 might be justified.

[inux94]

Motherboardsorg rainbowbarfed out a review on it (XFX version)



Battlefield 3 on 1920x1200 with Ultra settings = 29.7 FPS, honestly I'm impressed!

[kidsafe]

Battlefield 3 on 1920x1200 with Ultra settings = 29.7 FPS, honestly I'm impressed!

Anand has it basically 90% as fast as a cheaper HD 6850. Of course it has great thermals and wins in some games, so it does have a bit more going for it.

[Cows For Life]

Anand has it basically 90% as fast as a cheaper HD 6850. Of course it has great thermals and wins in some games, so it does have a bit more going for it.

It's disappointing. I wonder how much of it is due to 128-bit memory. A possible bottleneck?

[kidsafe]

In the grand scheme, the 128-bit memory bus isn't a big deal for 1920x1080 or 1920x1200. The biggest performance penalty is the pixel fillrate because it has half the ROPs of the HD 6800 series.

[DeltrusDisc]

It seems the 7770 is not as good even as a 6850 in some cases, a 6870 is even better. You're better off buying one of those, due to their very similar if not equal prices.

Spending a little more money for a GTX 560 apparently is an even better option, big time, it seems.

[Deleted]

Bronze award? I love Tinytomlogan's videos but he's too nice towards stuff sometimes. This card is tosh unless it gets a major cost reduction, 6790 performance for 6870 prices!