GeForce GTX 460 vs Radeon R9 M395X

Intro

Compare all of that to the Radeon R9 M395X, which has a clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce GTX 460		150 Watts
	Difference: 25 Watts (20%)

Memory Bandwidth

Performance-wise, the Radeon R9 M395X should in theory be a lot better than the GeForce GTX 460 in general. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 73600 (85%)

Texel Rate

The Radeon R9 M395X should be a lot (more or less 145%) better at texture filtering than the GeForce GTX 460. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GTX 460		37800 Mtexels/sec
	Difference: 54744 (145%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M395X is a better choice, by a large margin. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce GTX 460		16200 Mpixels/sec
	Difference: 6936 (43%)

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: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.