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GeForce 8600 GT 1GB GDDR3 vs Radeon HD 6850

Intro

The GeForce 8600 GT 1GB GDDR3 comes with clock speeds of 540 MHz on the GPU, and 700 MHz on the 1024 MB of GDDR3 memory. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare all of that to the Radeon HD 6850, which uses a 40 nm design. AMD has clocked the core frequency at 775 MHz. The GDDR5 memory works at a speed of 1000 MHz on this card. It features 960 SPUs along with 48 TAUs and 32 ROPs.

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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

In theory, the Radeon HD 6850 should be 471% faster than the GeForce 8600 GT 1GB GDDR3 in general, because of its higher data rate. (explain)

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

Texel Rate

The Radeon HD 6850 should be much (about 331%) faster with regards to texture filtering 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 should be a lot (about 474%) better at FSAA than the GeForce 8600 GT 1GB GDDR3, and capable of handling higher screen resolutions without slowing down too much. (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: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at handling 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 card can possibly record to its local memory in a 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 - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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