GeForce GTX 980 Ti vs Radeon HD 7790

Intro

Compare those specifications to the Radeon HD 7790, which has GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory set to run at 1500 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 TAUs, and 16 Raster Operation Units.

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 980 Ti		17120 points
Radeon HD 7790		4330 points
	Difference: 12790 (295%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 165 Watts (194%)

Memory Bandwidth

In theory, the GeForce GTX 980 Ti is 250% quicker than the Radeon HD 7790 overall, because of its higher bandwidth. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 240000 (250%)

Texel Rate

The GeForce GTX 980 Ti should be much (about 214%) more effective at anisotropic filtering than the Radeon HD 7790. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 120000 (214%)

Pixel Rate

The GeForce GTX 980 Ti is quite a bit (approximately 500%) faster with regards to AA than the Radeon HD 7790, and should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 80000 (500%)

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 largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better 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 number of pixels that the graphics card could 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 Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.