GeForce GTX 980 vs Radeon HD 7790

Intro

Compare those specs to the Radeon HD 7790, which comes with core speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs as well as 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 980		13552 points
Radeon HD 7790		4330 points
	Difference: 9222 (213%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce GTX 980		165 Watts
	Difference: 80 Watts (94%)

Memory Bandwidth

In theory, the GeForce GTX 980 should perform a lot faster than the Radeon HD 7790 overall. (explain)

GeForce GTX 980		224000 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 128000 (133%)

Texel Rate

The GeForce GTX 980 will be quite a bit (more or less 157%) better at texture filtering than the Radeon HD 7790. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 88128 (157%)

Pixel Rate

The GeForce GTX 980 is much (approximately 350%) faster with regards to anti-aliasing than the Radeon HD 7790, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 56064 (350%)

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 (counted in MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 per second. This number is calculated 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 maximum number of pixels the video 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.