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GeForce 8600 GT 1GB DDR2 vs Radeon R9 M265X

Intro

The GeForce 8600 GT 1GB DDR2 features a GPU core clock speed of 540 MHz, and the 1024 MB of DDR2 RAM is set to run at 400 MHz through a 128-bit bus. It also is comprised of 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the Radeon R9 M265X, which features core speeds of 575 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M265X should theoretically be a lot faster than the GeForce 8600 GT 1GB DDR2 overall. (explain)

Radeon R9 M265X 72000 MB/sec
GeForce 8600 GT 1GB DDR2 12800 MB/sec
Difference: 59200 (463%)

Texel Rate

The Radeon R9 M265X should be much (approximately 166%) more effective at AF than the GeForce 8600 GT 1GB DDR2. (explain)

Radeon R9 M265X 23000 Mtexels/sec
GeForce 8600 GT 1GB DDR2 8640 Mtexels/sec
Difference: 14360 (166%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M265X is the winner, and very much so. (explain)

Radeon R9 M265X 9200 Mpixels/sec
GeForce 8600 GT 1GB DDR2 4320 Mpixels/sec
Difference: 4880 (113%)

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 DDR2

Amazon.com

Check prices at:

Radeon R9 M265X

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 DDR2 Radeon R9 M265X
Manufacturer nVidia AMD
Year April 2007 May 1 2014
Code Name G84 Venus Pro
Memory 1024 MB 2048 MB
Core Speed 540 MHz 575 MHz
Memory Speed 800 MHz 4500 MHz
Power (Max TDP) 47 watts (Unknown) watts
Bandwidth 12800 MB/sec 72000 MB/sec
Texel Rate 8640 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 32 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-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 max amount of data (measured in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 1GB DDR2

Amazon.com

Check prices at:

Radeon R9 M265X

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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