GeForce GTX 460 2GB vs Radeon R9 380 2G

Intro

Compare all that to the Radeon R9 380 2G, which features a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB		160 Watts
Radeon R9 380 2G		190 Watts
	Difference: 30 Watts (19%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380 2G is 58% faster than the GeForce GTX 460 2GB overall, due to its greater data rate. (explain)

Radeon R9 380 2G		182400 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 67200 (58%)

Texel Rate

The Radeon R9 380 2G should be a lot (more or less 187%) better at AF than the GeForce GTX 460 2GB. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 70840 (187%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 380 2G is superior to the GeForce GTX 460 2GB, by a large margin. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
GeForce GTX 460 2GB		21600 Mpixels/sec
	Difference: 9440 (44%)

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 (in units of MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.