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GeForce 8600 GT 256MB DDR2 vs Radeon R9 M295X

Intro

The GeForce 8600 GT 256MB DDR2 features a clock speed of 540 MHz and a DDR2 memory frequency of 400 MHz. It also features a 128-bit bus, and makes use of a 80 nm design. It features 32 SPUs, 16 TAUs, and 8 ROPs.

Compare those specs to the Radeon R9 M295X, which has GPU core speed of 750 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 256MB DDR2 47 Watts
Radeon R9 M295X 125 Watts
Difference: 78 Watts (166%)

Memory Bandwidth

Theoretically, the Radeon R9 M295X should perform much faster than the GeForce 8600 GT 256MB DDR2 overall. (explain)

Radeon R9 M295X 176000 MB/sec
GeForce 8600 GT 256MB DDR2 12800 MB/sec
Difference: 163200 (1275%)

Texel Rate

The Radeon R9 M295X is much (about 1011%) better at anisotropic filtering than the GeForce 8600 GT 256MB DDR2. (explain)

Radeon R9 M295X 96000 Mtexels/sec
GeForce 8600 GT 256MB DDR2 8640 Mtexels/sec
Difference: 87360 (1011%)

Pixel Rate

The Radeon R9 M295X should be quite a bit (about 456%) more effective at full screen anti-aliasing than the GeForce 8600 GT 256MB DDR2, and able to handle higher screen resolutions better. (explain)

Radeon R9 M295X 24000 Mpixels/sec
GeForce 8600 GT 256MB DDR2 4320 Mpixels/sec
Difference: 19680 (456%)

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 256MB DDR2

Amazon.com

Check prices at:

Radeon R9 M295X

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 256MB DDR2 Radeon R9 M295X
Manufacturer nVidia AMD
Year April 2007 2014
Code Name G84 Unknown
Memory 256 MB 4096 MB
Core Speed 540 MHz 750 MHz
Memory Speed 800 MHz 5500 MHz
Power (Max TDP) 47 watts 125 watts
Bandwidth 12800 MB/sec 176000 MB/sec
Texel Rate 8640 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 32 2048
Texture Mapping Units 16 128
Render Output Units 8 32
Bus Type DDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 80 nm 28 nm
Transistors 289 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 256MB DDR2

Amazon.com

Check prices at:

Radeon R9 M295X

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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