GeForce GTX 460 SE vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which features GPU clock speed of 1050 MHz, and 8192 MB of GDDR5 RAM running at 1500 MHz through a 512-bit bus. It also is comprised of 2816 SPUs, 176 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 125 Watts (83%)

Memory Bandwidth

As far as performance goes, the Radeon R9 390X 8G should in theory be a lot better than the GeForce GTX 460 SE in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 275200 (253%)

Texel Rate

The Radeon R9 390X 8G should be much (about 492%) more effective at texture filtering than the GeForce GTX 460 SE. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 153600 (492%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 390X 8G is superior to the GeForce GTX 460 SE, by far. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 46400 (223%)

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 information (in units of MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one 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 - also sometimes called 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.