GeForce GTX 460 1GB vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which has GPU core speed of 1100 MHz, and 2048 MB of GDDR5 RAM set to run at 1625 MHz through a 128-bit bus. It also is made up of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 45 Watts (39%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB is 11% faster than the Radeon R7 260X in general, because of its higher data rate. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 11200 (11%)

Texel Rate

The Radeon R7 260X is much (about 63%) better at anisotropic filtering than the GeForce GTX 460 1GB. (explain)

Radeon R7 260X		61600 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 23800 (63%)

Pixel Rate

The GeForce GTX 460 1GB will be a lot (about 23%) better at FSAA than the Radeon R7 260X, and also capable of handling higher screen resolutions better. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 4000 (23%)

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 (in units of MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.