GeForce GTX 460 vs Radeon HD 6790

Intro

Compare all of that to the Radeon HD 6790, which uses a 40 nm design. AMD has set the core frequency at 840 MHz. The GDDR5 memory works at a frequency of 1050 MHz on this particular model. It features 800 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 460		2557 points
Radeon HD 6790		2150 points
	Difference: 407 (19%)

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 much better than the GeForce GTX 460 in general. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 48000 (56%)

Texel Rate

The GeForce GTX 460 is a small bit (approximately 13%) more effective at texture filtering than the Radeon HD 6790. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 4200 (13%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 460 is a better choice, by far. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 2760 (21%)

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 data (in units of MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR 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 number is worked out 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.