PCTuning fórum

flanker píše:

Now reports core lower @ 750mhz (probably 3 different speeds for 3 models 650/750/850)

xtremesystems.org píše:Architecture explained by a newb:
Dual core / MCM: This generation supports a new "hard" method of dual gpu rendering that differs from previous Crossfire implementation that we see R800 and in rv870 crossfire situations. The chinese translation is "dual core" or split frame hardware- Has something to do with the way the shaders/alus etc operates inside an individual gpu (a method of simultaneous operations in the hardware, similar to dual core, yet not actually two dies in one package ala MCM). Perhaps there is no more real-time compiler in the driver and its all handled on the hardware level by the scheduler. Because the core of the chip is so modular & scalable with certain areas sharing parts of the die (ROPS + Memory controller logic), you are able to divide the specs in half (1600/256/80/32 to 800/128/40/16) and have two parts (rv870/rv830) and rv870 appears as two rv830's, yet it is still only one die. Hence term "dual-core" - more like "modular". Some people think, yes, but all GPUs are multi-core because each of the shaders is like a core by itself. Well, here we are dealing with two large arrays of 800 shaders, along with other standalone logic that communicates with either one of the two identical arrays. More specifically, one Rv870 die is composed of two Rv830-like 160x5 clusters/shader arrays (like two current-gen revamped rv770's in one die) sharing certain features, but connected via "internal crossfire" working in unison and the entire design is a continuation of R600 architecture. It is load balanced, efficient, and requires no crossfire software optimization (because it is hardware level communication); it works via SFR 8*8-32*32, and is bandwidth intensive. The board is using next-gen 5ghz Gddr5 to provide the required bandwidth. So, apparently they've slapped together two 40nm rv770's... so it's easy to see where "dual-core" confusion comes from. Cypress is like a 40nm 4890x2 in one die! -So, it is like a "native dual core" CPU. Now that specs are known for Cypress & Juniper (rv870 & rv830) you can expect that the remaining parts Cedar & Redwood (rv840 & rv810) are 3/4 Cypress & 1/4 Cypress respectively, and that Hemlock (r800) is 2 x Cypress in the same fashion as the HD4870x2 on a single PCB. So, Cypress is like a larabee, except that it uses 2 rv770 cores, whereas larabee is using several P54C cores. (Even though this isn't an actual rv870 die shot, rather an artist's rendition posted earlier - when you do see an actual one, it will look more like the first two images ie. a symmetrical reflection of two identical core areas over a center axis, rather than the third picture - which is an actual die shot of rv770. Notice in the 3rd pic that the rv770 is asymmetrical by design, not resembling a dual core architecture.)

xtremesystems.org píše:Hemlock (R800) dual gpu "HD5870x2/ HD5890x2" is:


<- Hd4850x2
<- HD4870x2 is overlayed for size comparison
larger than 4870x2 single PCB
4.8+ Tflops (can it play crysis? )
29.5cm (11.6in) slightly longer than hd4850x2
2 x 2.2bil transistors (wiki says 1.8b x 2)
40nm 353mm^2 die x 2
19mm x 19mm at cost of $34 per die
now saying: 17.8 * 17.2 = 306.2mm ^ 2 est. 306-320mm2
1 6pin + 1 8pin PCI_E power connectors
DX11
3200SP (1600 x 2)
256bit bus x 2
160 Tex map. (80TMU x 2)
64 ROPS 32ROP x 2
1024/2048mb x 2 mem configs 4gb ~5-6ghz GDDR5???
Core clock 100mhz higher than Cypress
~$500 MSRP
3dmark vantage performance:
Extreme mode ~X13000
(2x Cypress) theoretical Performance P34xxx ???
has to be less though - P28-P30k range

Kód: Vybrat vše

http://74.125.65.132/translate_c?hl=en&sl=zh-CN&u=http://www.chiphell.com/news/&prev=/search%3Fq%3Dchiphell%26hl%3Den&rurl=translate.google.com&usg=ALkJrhhqhcWcdIBW-AeAw9Nft0vRSl16FA

Hemlock is R800, possibly branded as 59x0, 300w TDP(6+8pin) uses two RV870s using SFR. Possibly 2 different cards, one PCB codenamed Trilleon(?) estimated MSRP $499-$599. Slightly longer PCB than 4870x2.

Cypress is RV870, 58x0, 225w TDP(dual 6pin), 256bit, 32ROPs, 1600SP, 80TMUs, ~280-340mm2, performance of around a 4870x2/4890CF. 2-3 different cards, 1&2GB versions, MSRP $249, $299 and $349. PCB slightly longer than 4870(9.5in) so maybe 10in, 2 slot cooler w/ 2 DVI, a HDMI and DisplayPort weird half exhaust in the back.

Cedar is RV840, supposedly a cancelled 192bit, 960SP part.

Juniper is RV830, 150w TDP(6pin), 128bit, 16ROPs, 800SP, 40TMUs, 181mm2, performance between a 4870 and 4890, closer to a 4890. 8.5in PCB(?) single slot cooler reference(?) OC'ed/higher clocked dual slot cooler(?) 1GB. MSRP $149 and $199.
Talk of a lower binned 640SP part to replace RV740, filling the $89-$129 market(?).

Redwood is RV810, 75w TDP, unknown specs- 64bit, 320-480SPs, 24TMUs, 80-90mm2. Performance close to a 9800GT, less than a 4830(?). MSRP ~$79 and under. Low profile version(?).

Colin McRae: DiRT™2
available from 11th September 2009
PC-DVD, PS3, XBOX360, PSP, Wii, DS

smoula píše:Kdo tomu věří?To bych teda valil oči.

Krteq píše:BTW, kde jsi vzal to posunutí vydání hry na Prosinec (December)?

no-X píše:Pokud něco zmiňujete, dávejte alespoň odkazy, odkud to je...

http://www.xtremesystems.org/forums/showthread.php?t=226623&

http://www.xtremesystems.org/forums/showpost.php?p=3967152&postcount=174