GeForce GTX 460 (OEM) vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which comes with GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the Radeon R9 380X should be 68% faster than the GeForce GTX 460 (OEM) in general, due to its higher data rate. (explain)

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

Texel Rate

The Radeon R9 380X is a lot (about 241%) faster with regards to anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 87760 (241%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 380X is the winner, by a large margin. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 460 (OEM)		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: Bandwidth is the largest amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.