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GeForce 8600 GTS vs Radeon HD 4670 512MB

Intro

The GeForce 8600 GTS makes use of a 80 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR3 RAM is set to run at a speed of 1000 MHz on this card. It features 32 SPUs as well as 16 TAUs and 8 ROPs.

Compare all of that to the Radeon HD 4670 512MB, which features core clock speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB 70 Watts
GeForce 8600 GTS 75 Watts
Difference: 5 Watts (7%)

Memory Bandwidth

Both cards have the exact same memory bandwidth, so theoretically they should perform exactly the same. (explain)

Texel Rate

The Radeon HD 4670 512MB should be quite a bit (more or less 122%) more effective at anisotropic filtering than the GeForce 8600 GTS. (explain)

Radeon HD 4670 512MB 24000 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 13200 (122%)

Pixel Rate

The Radeon HD 4670 512MB will be a bit (about 11%) more effective at FSAA than the GeForce 8600 GTS, and should be able to handle higher resolutions while still performing well. (explain)

Radeon HD 4670 512MB 6000 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 600 (11%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 8600 GTS

Amazon.com

Check prices at:

Radeon HD 4670 512MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 8600 GTS Radeon HD 4670 512MB
Manufacturer nVidia AMD
Year April 2007 Sep 10, 2008
Code Name G84 RV730 XT
Memory 512 MB 512 MB
Core Speed 675 MHz 750 MHz
Memory Speed 2000 MHz 2000 MHz
Power (Max TDP) 75 watts 70 watts
Bandwidth 32000 MB/sec 32000 MB/sec
Texel Rate 10800 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 32 320(64x5)
Texture Mapping Units 16 32
Render Output Units 8 8
Bus Type GDDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 128-bit 128-bit
Fab Process 80 nm 55 nm
Transistors 289 million 514 million
Bus PCIe x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 8600 GTS

Amazon.com

Check prices at:

Radeon HD 4670 512MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

One Response to “GeForce 8600 GTS vs Radeon HD 4670 512MB”
GF 8600 GTS (256) Vs ATI 4650 (1 gig) - Overclock.net - Overclocking.net says:

[...] the 8600 can get 2k? haha mmmm http://www.hwcompare.com/3069/geforc...hd-4670-512mb/ 4670 v 8600 GTS 512. __________________ CM Elite Series ClubAUSSIE OCN CLUB L : O : S : I : A [...]

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