GeForce GTX 480 vs Radeon HD 7790

Intro

Compare all that to the Radeon HD 7790, which features a clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

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

Radeon HD 7790		4330 points
GeForce GTX 480		3650 points
	Difference: 680 (19%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 480		250 Watts
	Difference: 165 Watts (194%)

Memory Bandwidth

Performance-wise, the GeForce GTX 480 should theoretically be a lot better than the Radeon HD 7790 in general. (explain)

GeForce GTX 480		177408 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 81408 (85%)

Texel Rate

The Radeon HD 7790 should be much (about 33%) faster with regards to anisotropic filtering than the GeForce GTX 480. (explain)

Radeon HD 7790		56000 Mtexels/sec
GeForce GTX 480		42000 Mtexels/sec
	Difference: 14000 (33%)

Pixel Rate

The GeForce GTX 480 should be much (approximately 110%) faster with regards to AA than the Radeon HD 7790, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 17600 (110%)

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 max amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core 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 rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.