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GeForce 8600 GT 512MB DDR2 vs Radeon HD 5830

Intro

The GeForce 8600 GT 512MB DDR2 has a GPU core clock speed of 540 MHz, and the 512 MB of DDR2 memory runs at 400 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 5830, which has a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also is comprised of 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2 47 Watts
Radeon HD 5830 175 Watts
Difference: 128 Watts (272%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 will be 900% faster than the GeForce 8600 GT 512MB DDR2 overall, due to its higher data rate. (explain)

Radeon HD 5830 128000 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 115200 (900%)

Texel Rate

The Radeon HD 5830 should be much (about 419%) faster with regards to texture filtering than the GeForce 8600 GT 512MB DDR2. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 36160 (419%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5830 is the winner, and very much so. (explain)

Radeon HD 5830 12800 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 8480 (196%)

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 512MB DDR2

Amazon.com

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Radeon HD 5830

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 512MB DDR2 Radeon HD 5830
Manufacturer nVidia AMD
Year April 2007 February 25, 2010
Code Name G84 Cypress LE
Memory 512 MB 1024 MB
Core Speed 540 MHz 800 MHz
Memory Speed 800 MHz 4000 MHz
Power (Max TDP) 47 watts 175 watts
Bandwidth 12800 MB/sec 128000 MB/sec
Texel Rate 8640 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 32 1120(224x5)
Texture Mapping Units 16 56
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 80 nm 40 nm
Transistors 289 million 2154 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 texture map elements (texels) that are processed per second. This number is worked out 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 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 amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

Radeon HD 5830

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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