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GeForce 8600 GT 512MB DDR2 vs Radeon HD 5750 1GB

Intro

The GeForce 8600 GT 512MB DDR2 has a core clock speed of 540 MHz and a DDR2 memory frequency of 400 MHz. It also uses a 128-bit memory bus, and uses a 80 nm design. It is comprised of 32 SPUs, 16 TAUs, and 8 ROPs.

Compare those specs to the Radeon HD 5750 1GB, which makes use of a 40 nm design. AMD has set the core speed at 700 MHz. The GDDR5 RAM is set to run at a frequency of 1150 MHz on this model. It features 720(144x5) SPUs along with 36 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 5750 1GB 86 Watts
Difference: 39 Watts (83%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB will be 475% faster than the GeForce 8600 GT 512MB DDR2 in general, due to its higher bandwidth. (explain)

Radeon HD 5750 1GB 73600 MB/sec
GeForce 8600 GT 512MB DDR2 12800 MB/sec
Difference: 60800 (475%)

Texel Rate

The Radeon HD 5750 1GB will be a lot (about 192%) more effective at texture filtering than the GeForce 8600 GT 512MB DDR2. (explain)

Radeon HD 5750 1GB 25200 Mtexels/sec
GeForce 8600 GT 512MB DDR2 8640 Mtexels/sec
Difference: 16560 (192%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 5750 1GB is the winner, and very much so. (explain)

Radeon HD 5750 1GB 11200 Mpixels/sec
GeForce 8600 GT 512MB DDR2 4320 Mpixels/sec
Difference: 6880 (159%)

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

Check prices at:

Radeon HD 5750 1GB

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 5750 1GB
Manufacturer nVidia AMD
Year April 2007 October 13, 2009
Code Name G84 Juniper LE
Memory 512 MB 1024 MB
Core Speed 540 MHz 700 MHz
Memory Speed 800 MHz 4600 MHz
Power (Max TDP) 47 watts 86 watts
Bandwidth 12800 MB/sec 73600 MB/sec
Texel Rate 8640 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 32 720(144x5)
Texture Mapping Units 16 36
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 80 nm 40 nm
Transistors 289 million 1040 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 information (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 512MB DDR2

Amazon.com

Check prices at:

Radeon HD 5750 1GB

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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