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GeForce GTX 460 vs Radeon R9 M275X

Intro

The GeForce GTX 460 features a clock frequency of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 192-bit memory bus, and uses a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 24 Raster Operation Units.

Compare those specifications to the Radeon R9 M275X, which has GPU clock speed of 900 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce GTX 460 150 Watts
Difference: 100 Watts (200%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 should be a small bit faster than the Radeon R9 M275X in general. (explain)

GeForce GTX 460 86400 MB/sec
Radeon R9 M275X 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The GeForce GTX 460 is a small bit (about 5%) better at anisotropic filtering than the Radeon R9 M275X. (explain)

GeForce GTX 460 37800 Mtexels/sec
Radeon R9 M275X 36000 Mtexels/sec
Difference: 1800 (5%)

Pixel Rate

The GeForce GTX 460 will be just a bit (about 13%) more effective at AA than the Radeon R9 M275X, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 16200 Mpixels/sec
Radeon R9 M275X 14400 Mpixels/sec
Difference: 1800 (13%)

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 M275X

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 M275X
Manufacturer nVidia AMD
Year July 2010 May 1 2014
Code Name GF104 Venus XTX
Memory 768 MB 2048 MB
Core Speed 675 MHz 900 MHz
Memory Speed 3600 MHz 4500 MHz
Power (Max TDP) 150 watts 50 watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 37800 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 16200 Mpixels/sec 14400 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 moved across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460

Amazon.com

Check prices at:

Radeon R9 M275X

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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