GeForce GTX 460 1GB vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has set the core speed at 1050 MHz. The GDDR5 memory works at a speed of 1500 MHz on this card. It features 2816 SPUs along with 176 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB		160 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 115 Watts (72%)

Memory Bandwidth

The Radeon R9 390X 8G, in theory, should perform much faster than the GeForce GTX 460 1GB in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX 460 1GB		115200 MB/sec
	Difference: 268800 (233%)

Texel Rate

The Radeon R9 390X 8G is much (approximately 389%) more effective at texture filtering than the GeForce GTX 460 1GB. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 147000 (389%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 390X 8G is the winner, by a large margin. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTX 460 1GB		21600 Mpixels/sec
	Difference: 45600 (211%)

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 megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.