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GeForce 8600 GTS vs Radeon R7 M265

Intro

The GeForce 8600 GTS makes use of a 80 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR3 RAM is set to run at a frequency of 1000 MHz on this model. It features 32 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

Compare those specs to the Radeon R7 M265, which comes with a core clock frequency of 725 MHz and a DDR3 memory frequency of 1000 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The Radeon R7 M265 should be a lot (about 61%) faster with regards to anisotropic filtering than the GeForce 8600 GTS. (explain)

Radeon R7 M265 17400 Mtexels/sec
GeForce 8600 GTS 10800 Mtexels/sec
Difference: 6600 (61%)

Pixel Rate

The Radeon R7 M265 will be a little bit (more or less 7%) more effective at anti-aliasing than the GeForce 8600 GTS, and should be able to handle higher resolutions while still performing well. (explain)

Radeon R7 M265 5800 Mpixels/sec
GeForce 8600 GTS 5400 Mpixels/sec
Difference: 400 (7%)

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 GTS

Amazon.com

Check prices at:

Radeon R7 M265

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 GTS Radeon R7 M265
Manufacturer nVidia AMD
Year April 2007 May 1 2014
Code Name G84 Opal XT
Memory 512 MB 2048 MB
Core Speed 675 MHz 725 MHz
Memory Speed 2000 MHz 2000 MHz
Power (Max TDP) 75 watts (Unknown) watts
Bandwidth 32000 MB/sec 32000 MB/sec
Texel Rate 10800 Mtexels/sec 17400 Mtexels/sec
Pixel Rate 5400 Mpixels/sec 5800 Mpixels/sec
Unified Shaders 32 384
Texture Mapping Units 16 24
Render Output Units 8 8
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 80 nm 28 nm
Transistors 289 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x8
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher 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 most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce 8600 GTS

Amazon.com

Check prices at:

Radeon R7 M265

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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