GeForce GTX 460 (OEM) vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which has a core clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It features 1792 SPUs, 112 TAUs, 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 380 4G		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380 4G is 68% faster than the GeForce GTX 460 (OEM) in general, due to its higher data rate. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 73600 (68%)

Texel Rate

The Radeon R9 380 4G will be much (more or less 198%) more effective at AF than the GeForce GTX 460 (OEM). (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 72240 (198%)

Pixel Rate

The Radeon R9 380 4G should be much (approximately 49%) more effective at FSAA than the GeForce GTX 460 (OEM), and will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 380 4G		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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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