GeForce GTX 980M vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which has core speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 800 SPUs as well as 40 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

GeForce GTX 980M		9476 points
Radeon HD 6790		2150 points
	Difference: 7326 (341%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon HD 6790		150 Watts
	Difference: 50 Watts (50%)

Memory Bandwidth

Theoretically, the Radeon HD 6790 should be a little bit faster than the GeForce GTX 980M in general. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 6400 (5%)

Texel Rate

The GeForce GTX 980M will be quite a bit (about 197%) more effective at AF than the Radeon HD 6790. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 66048 (197%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 980M is a better choice, by far. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 52992 (394%)

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 MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.