GeForce GTX 460 SE vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which has a core clock frequency of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit bus, and makes use of a 28 nm design. It is made up of 2816 SPUs, 176 TAUs, and 64 ROPs.

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 theoretically be a lot superior to 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 (approximately 492%) more effective at anisotropic 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

The Radeon R9 390X 8G is quite a bit (more or less 223%) faster with regards to full screen anti-aliasing than the GeForce GTX 460 SE, and also should be capable of handling higher resolutions while still performing well. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total 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 applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 get to the maximum fill rate.