GeForce GTX 460 1GB vs Radeon R9 380 2G

Intro

Compare all of that to the Radeon R9 380 2G, which features GPU core speed of 970 MHz, and 2048 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is comprised of 1792 Stream Processors, 112 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 1GB		160 Watts
Radeon R9 380 2G		190 Watts
	Difference: 30 Watts (19%)

Memory Bandwidth

The Radeon R9 380 2G should in theory be much faster than the GeForce GTX 460 1GB overall. (explain)

Radeon R9 380 2G		182400 MB/sec
GeForce GTX 460 1GB		115200 MB/sec
	Difference: 67200 (58%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (approximately 187%) faster with regards to anisotropic filtering than the GeForce GTX 460 1GB. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 70840 (187%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380 2G is a better choice, and very much so. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
GeForce GTX 460 1GB		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 maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied 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 the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.