PCTuning fórum

lazar píše:Nevim do jake miry pamet (velikost FB) ci jine prvky maji vliv na propady u HD4770 (vuci HD4890), ale rozdil je vyraznejsi. Zaver o (ne)dostatecnosti nelze stavet na prumeru. Hranice vykonu/limitu se overuji v extremnich zatezich/vyuziti.

http://www.extrahardware.cz/files/image ... g/cry1.png
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Pokud samotny OC pameti u HD4870 navysi vykon pak nejde o overkill (pameti se ani na ref taktu viditelne nenudi).

Pokud přetaktování GPU zvyšuje výkon víc, nejsou limitujícím prvkem paměti.

We all know that RV870 is a native dual-core, MEM share, TMU sharing, etc. These hardware innovations is just the beginning, or rather in addition to hardware of the new technology, RV870 brings us the updated software in-depth , for example, CrossFire mode, specifically can refer to the savage major technical paper, I did not address this explains (http://bbs.chiphell.com/viewthread.php? ... extra=page% 3D1)
RV870 by native dual-core hardware support, the biggest benefit is the CF model can be evolved from today's AFR for a more reasonable SFR (do not understand what AFR and SFR for us to look savage Great article,), SFR and thoroughly get rid of the PCI-E bandwidth bottlenecks leading to CF or SLI can not use the SFR of the constraints, CF no longer rely on driving on the optimization of 1 +1 is infinitely close to two and said, where everyone will be RV870 native dual-core architecture of the deep deep impress, at least in my case, native dual-core is my first time in years, felt playing card graphics technology, a major step forward.
Go back to Crysis on the results, in fact, the RV870's Crysis performance can be regarded as a strong reason why the bounds of reason, but it can be regarded as lucky, because to say whether it is before the CF or SLI, the efficiency of both in Crysis is not high, RV870 just drill the use of technology, this SFR loopholes and completed card crisis, the role of Terminator, but I hope that everyone calmly RV870 performance, in other CF or SLI more efficient GAME in, RV870 impossible to think about Crysis so lucky, though it in terms of the total, RV870 architecture as pioneered the use of dual-core technology, combined with the many part of the shared framework, the core DIE or the ratio of power consumption and performance will be the same Performance Products the highest, which is beyond doubt.

Lao Lao hastily said so much, would have wanted to test them on the RV870 article says, but I got fascinated by the RV870 architecture could not resist spraying a bit out, more content or waiting for me in the future release of the RV870 test, let us share the bar.

• 40nm
• ~2.1B transistors
• ~333mm²
• 320 SP (1600 ALU)
• 80 TMU
• 32 ROPs
• 850 MHz
• 2,7 TFlops
• 2 GB GDDR5 1200 MHz
• ~150 GB/s
• Idle: 26 watts
• Peak: 190 watts
• Price: $399
• September 23

• 288 SP (1440 ALU)
• 72 TMUs
• 32 ROPs
• ~700 MHz
• 2,0 TFlops
• 1 GB GDDR5 ~1000 MHz
• ~128 GB/s
• Price: < $300
• September 23

... they reworked the TMUs, the cache, and added some really nice features ...
... this information is all "under NDA" .. and it is "leaked" to us.
I guess our friend Huddy was right; i am pleasantly surprised.

HD5870 se z tohoto hlediska zdá být vyváženější. Pokud bychom vzali v potaz, že HD4870 s 16ROPs by 70-80 GB/s bezproblémově stačilo, pak HD5870 s dvojnásobkem ROPs bude též stačit dvojnásobek bez problému.

Proto vidím jako velmi pozitivní, že se na obojí ATi zaměřila.

Anand Lal Shimpi píše:I played Dirt 2, a DX11 title at 7680 x 3200 and saw definitely playable frame rates. I played Left 4 Dead and the experience was much better. Obviously this new GPU is powerful, although I wouldn't expect it to run everything at super high frame rates at 7680 x 3200.