GeForce GTX 460 (OEM) vs Radeon HD 6790

Intro

Compare those specs to the Radeon HD 6790, which has a core clock speed of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is made up of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the Radeon HD 6790 should theoretically be a lot superior to the GeForce GTX 460 (OEM) in general. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 25600 (24%)

Texel Rate

The GeForce GTX 460 (OEM) will be a small bit (more or less 8%) faster with regards to AF than the Radeon HD 6790. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 2800 (8%)

Pixel Rate

The GeForce GTX 460 (OEM) should be quite a bit (approximately 55%) more effective at anti-aliasing than the Radeon HD 6790, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 7360 (55%)

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 data (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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