GeForce GTX 460 2GB vs Radeon R9 M295X

Intro

Compare those specs to the Radeon R9 M295X, which uses a 28 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 RAM runs at a frequency of 1375 MHz on this model. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 35 Watts (28%)

Memory Bandwidth

Performance-wise, the Radeon R9 M295X should theoretically be much better than the GeForce GTX 460 2GB in general. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 60800 (53%)

Texel Rate

The Radeon R9 M295X will be quite a bit (about 154%) better at texture filtering than the GeForce GTX 460 2GB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 58200 (154%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M295X is a better choice, but only just. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce GTX 460 2GB		21600 Mpixels/sec
	Difference: 2400 (11%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.