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[TGD] Radeon 4800 gets 480 stream processors

post #1 of 63
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Quote:
Chicago (IL) – Next month will be more important for AMD’s graphics division than any other month of this year: The company is set to release the (RV770) 4800-series of graphics cards, including the models 4850, 4870 and 4870 X2. While the launch is still very much a secret, TG Daily was able to receive details and the specifications of the new cards – which will put ATI back into the ring with Nvidia.
Quote:
Let’s have a look at the general specifications of the Radeon 4800 series, which is based on the RV770 graphics processor. The new GPU has 480 stream processors or shader units (96+384), 32 Texture units (up from 16), 16 ROP (same as 2900/3800), a 256-bit memory controller and native GDDR3/4/5 support (expect GDDR3 and GDDR5 memory versions of RV770 cards).
Quote:
The Radeon 4850 will debut with a GPU clocked at 650 MHz, while the shader array will be clocked 850 MHz. The 4870 has an 850 MHz core and a 1050 MHz shader clock. The fill-rate is closely tied to the GPU clock: The 4850 sports a fill-rate of 20.8 GTexel/s (32 TMU x 0.65 GHz), while the 4870 achieves a 27.2 GTexel/s (32 TMU x 0.85 GHz) performance.
Quote:

Flagship dual-GPU 4870 X2 cards will include 2048 MB of GDDR5 memory clocked at 1.73 GHz. The Radeon HD 4870 X2 will be introduced at a later date (and could see spec revisions).
Pricing.


Quote:


The 4850 256MB GDDR3 version will arrive as the successor of the 3850 256MB with a price in the sub-$200 range. The 4850 512MB GDDR3 should retail for $229, the 4850 512MB
GDDR5 will set you back about $249-269. The big daddy, the 1GB GDDR5 powered 4870 will retail between $329-349.


When it will become available the 4870 X2 will hit the market for $499.
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post #2 of 63
With a price like that i want a refund on my 3870!!
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post #3 of 63
I can't wait.. *licks lips*
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post #4 of 63
Why are they doing 1GB on a 256-bit bus?
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post #5 of 63
So the 4870X2 will have 2GB of vRAM on a 256-bit bus? Am I reading that correctly?

EDIT: Haha, Stargate- same time.
    
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post #6 of 63
Quote:
Originally Posted by stargate125645 View Post
Why are they doing 1GB on a 256-bit bus?
For the same reason you have 2gb on a 128 bit bus, because they can.
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post #7 of 63
GDDR5 NEGATES THE NEED FOR ANYTHING MORE THAN A 256-BIT BUS.

Seriously, the speeds of GDDR5 are such that anything more than 256-bit would be money wasted, which would then make the cards more expensive.

ATI know what they are doing.
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post #8 of 63
Quote:
Our sources indicate that the launch is only weeks away
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post #9 of 63
Do want benchies! And that's exactly what I'm thinkin grunion, BOINNGGGGGG

Goodbye 8800 GT.
post #10 of 63
Wow.. I hope nvidia brings something similar into the show. I need a new GPU and I dont want G92 again..
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