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GeForce GTX 260 vs Radeon R9 M265X

Intro

The GeForce GTX 260 makes use of a 65 nm design. nVidia has set the core speed at 576 MHz. The GDDR3 memory runs at a frequency of 999 MHz on this particular card. It features 192 SPUs as well as 64 TAUs and 28 ROPs.

Compare those specs to the Radeon R9 M265X, which has GPU core speed of 575 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GTX 260 should be a lot faster than the Radeon R9 M265X in general. (explain)

GeForce GTX 260 111888 MB/sec
Radeon R9 M265X 72000 MB/sec
Difference: 39888 (55%)

Texel Rate

The GeForce GTX 260 should be quite a bit (more or less 60%) more effective at anisotropic filtering than the Radeon R9 M265X. (explain)

GeForce GTX 260 36864 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 13864 (60%)

Pixel Rate

The GeForce GTX 260 is quite a bit (approximately 75%) faster with regards to FSAA than the Radeon R9 M265X, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 260 16128 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 6928 (75%)

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 260

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 GTX 260 Radeon R9 M265X
Manufacturer nVidia AMD
Year June 16, 2008 May 1 2014
Code Name G200 Venus Pro
Memory 896 MB 2048 MB
Core Speed 576 MHz 575 MHz
Memory Speed 1998 MHz 4500 MHz
Power (Max TDP) 182 watts (Unknown) watts
Bandwidth 111888 MB/sec 72000 MB/sec
Texel Rate 36864 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 192 640
Texture Mapping Units 64 40
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-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 max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's 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 ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 260

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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