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GeForce 8600 GT 1GB GDDR3 vs Radeon HD 6850

Intro

The GeForce 8600 GT 1GB GDDR3 makes use of a 80 nm design. nVidia has set the core speed at 540 MHz. The GDDR3 memory is set to run at a speed of 700 MHz on this specific card. It features 32 SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

Compare all that to the Radeon HD 6850, which comes with core clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 960 SPUs along with 48 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3 47 Watts
Radeon HD 6850 127 Watts
Difference: 80 Watts (170%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6850 should perform quite a bit faster than the GeForce 8600 GT 1GB GDDR3 overall. (explain)

Radeon HD 6850 128000 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 105600 (471%)

Texel Rate

The Radeon HD 6850 is a lot (more or less 331%) faster with regards to AF than the GeForce 8600 GT 1GB GDDR3. (explain)

Radeon HD 6850 37200 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 28560 (331%)

Pixel Rate

The Radeon HD 6850 is a lot (approximately 474%) more effective at anti-aliasing than the GeForce 8600 GT 1GB GDDR3, and capable of handling higher resolutions more effectively. (explain)

Radeon HD 6850 24800 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 4320 Mpixels/sec
Difference: 20480 (474%)

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 GT 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 6850

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 GT 1GB GDDR3 Radeon HD 6850
Manufacturer nVidia AMD
Year April 2007 October 2010
Code Name G84 Barts Pro
Memory 1024 MB 1024 MB
Core Speed 540 MHz 775 MHz
Memory Speed 1400 MHz 4000 MHz
Power (Max TDP) 47 watts 127 watts
Bandwidth 22400 MB/sec 128000 MB/sec
Texel Rate 8640 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 32 960
Texture Mapping Units 16 48
Render Output Units 8 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 80 nm 40 nm
Transistors 289 million 1700 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 6850

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 GT 1GB GDDR3 vs Radeon HD 6850”
Geoforce 8600gt | Tribalgamingin says:

[...] GeForce 8600 GT 1GB GDDR3 vs Radeon HD 6850 – Performance …GeForce 8600 GT 1GB GDDR3 vs Radeon HD 6850. Intro. The GeForce 8600 GT 1GB GDDR3 has a GPU core speed of 540 MHz, and the 1024 MB of GDDR3 … [...]

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