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GeForce 8600 GTS vs Radeon HD 6670 (OEM)

Intro

The GeForce 8600 GTS features a clock speed of 675 MHz and a GDDR3 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 80 nm design. It is made up of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 6670 (OEM), which uses a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this particular model. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
GeForce 8600 GTS 75 Watts
Difference: 12 Watts (19%)

Memory Bandwidth

The Radeon HD 6670 (OEM) should theoretically be much faster than the GeForce 8600 GTS overall. (explain)

Radeon HD 6670 (OEM) 64000 MB/sec
GeForce 8600 GTS 32000 MB/sec
Difference: 32000 (100%)

Texel Rate

The Radeon HD 6670 (OEM) should be a lot (about 78%) faster with regards to texture filtering than the GeForce 8600 GTS. (explain)

Radeon HD 6670 (OEM) 19200 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 8400 (78%)

Pixel Rate

The Radeon HD 6670 (OEM) is just a bit (approximately 19%) faster with regards to full screen anti-aliasing than the GeForce 8600 GTS, and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 6670 (OEM) 6400 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 1000 (19%)

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 6670 (OEM)

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 6670 (OEM)
Manufacturer nVidia AMD
Year April 2007 February 2011
Code Name G84 Turks
Memory 512 MB 512 MB
Core Speed 675 MHz 800 MHz
Memory Speed 2000 MHz 4000 MHz
Power (Max TDP) 75 watts 63 watts
Bandwidth 32000 MB/sec 64000 MB/sec
Texel Rate 10800 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 32 480
Texture Mapping Units 16 24
Render Output Units 8 8
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 715 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 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 anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GTS

Amazon.com

Check prices at:

Radeon HD 6670 (OEM)

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.

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