Geforce GTX 1080 Ti vs Radeon HD 7790

Intro

Compare those specifications to the Radeon HD 7790, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this particular model. It features 896 SPUs along with 56 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 1080 Ti		27629 points
Radeon HD 7790		4330 points
	Difference: 23299 (538%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Geforce GTX 1080 Ti		250 Watts
	Difference: 165 Watts (194%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 1080 Ti should be much faster than the Radeon HD 7790 in general. (explain)

Geforce GTX 1080 Ti		495616 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 399616 (416%)

Texel Rate

The Geforce GTX 1080 Ti will be quite a bit (more or less 492%) more effective at texture filtering than the Radeon HD 7790. (explain)

Geforce GTX 1080 Ti		331520 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 275520 (492%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 1080 Ti is superior to the Radeon HD 7790, by a large margin. (explain)

Geforce GTX 1080 Ti		130240 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 114240 (714%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 calculated by multiplying the total amount of texture units by the core 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 maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.