GeForce GTX 460 SE vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which has GPU core speed of 970 MHz, and 4096 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
Radeon R9 380X		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

In theory, the Radeon R9 380X should be much faster than the GeForce GTX 460 SE overall. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 73600 (68%)

Texel Rate

The Radeon R9 380X will be much (about 298%) more effective at AF than the GeForce GTX 460 SE. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 92960 (298%)

Pixel Rate

The Radeon R9 380X should be quite a bit (approximately 49%) better at full screen anti-aliasing than the GeForce GTX 460 SE, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 10240 (49%)

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 maximum amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.