Geforce GTX 680 vs Radeon HD 7790

Intro

Compare all that to the Radeon HD 7790, which features core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs along with 56 Texture Address Units 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

Geforce GTX 680		7650 points
Radeon HD 7790		4330 points
	Difference: 3320 (77%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Geforce GTX 680		195 Watts
	Difference: 110 Watts (129%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 is 100% faster than the Radeon HD 7790 in general, because of its higher data rate. (explain)

Geforce GTX 680		192256 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 96256 (100%)

Texel Rate

The Geforce GTX 680 is much (more or less 130%) better at AF than the Radeon HD 7790. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 72768 (130%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 680 is superior to the Radeon HD 7790, by far. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 16192 (101%)

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 data (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock 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 output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.