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GeForce GTX 460 vs Radeon R9 M270X

Intro

The GeForce GTX 460 uses a 40 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR5 memory runs at a frequency of 900 MHz on this specific card. It features 336 SPUs along with 56 TAUs and 24 Rasterization Operator Units.

Compare that to the Radeon R9 M270X, which makes use of a 28 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 RAM runs at a frequency of 1125 MHz on this model. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 will be 20% faster than the Radeon R9 M270X in general, because of its greater bandwidth. (explain)

GeForce GTX 460 86400 MB/sec
Radeon R9 M270X 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The GeForce GTX 460 will be a lot (about 30%) more effective at texture filtering than the Radeon R9 M270X. (explain)

GeForce GTX 460 37800 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 8800 (30%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 is a better choice, by far. (explain)

GeForce GTX 460 16200 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 4600 (40%)

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 460

Amazon.com

Check prices at:

Radeon R9 M270X

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 460 Radeon R9 M270X
Manufacturer nVidia AMD
Year July 2010 May 1 2014
Code Name GF104 Venus XT
Memory 768 MB 2048 MB
Core Speed 675 MHz 725 MHz
Memory Speed 3600 MHz 4500 MHz
Power (Max TDP) 150 watts (Unknown) watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 37800 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 16200 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 336 640
Texture Mapping Units 56 40
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 460

Amazon.com

Check prices at:

Radeon R9 M270X

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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