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GeForce GTX 280 vs Radeon R9 M265X

Intro

The GeForce GTX 280 comes with clock speeds of 602 MHz on the GPU, and 1107 MHz on the 1024 MB of GDDR3 memory. It features 240 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Compare all of that to the Radeon R9 M265X, which comes with core clock speeds of 575 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 should perform much faster than the Radeon R9 M265X overall. (explain)

GeForce GTX 280 141696 MB/sec
Radeon R9 M265X 72000 MB/sec
Difference: 69696 (97%)

Texel Rate

The GeForce GTX 280 should be quite a bit (about 109%) faster with regards to texture filtering than the Radeon R9 M265X. (explain)

GeForce GTX 280 48160 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 25160 (109%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 280 is the winner, by far. (explain)

GeForce GTX 280 19264 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 10064 (109%)

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 GTX 280

Amazon.com

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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 GTX 280 Radeon R9 M265X
Manufacturer nVidia AMD
Year June 17, 2008 May 1 2014
Code Name G200 Venus Pro
Memory 1024 MB 2048 MB
Core Speed 602 MHz 575 MHz
Memory Speed 2214 MHz 4500 MHz
Power (Max TDP) 236 watts (Unknown) watts
Bandwidth 141696 MB/sec 72000 MB/sec
Texel Rate 48160 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 240 640
Texture Mapping Units 80 40
Render Output Units 32 16
Bus Type GDDR3 GDDR5
Bus Width 512-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 1400 million (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total 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 the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 280

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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