GeForce GTX 980 Ti vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which comes with a core clock frequency of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

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 980 Ti		17120 points
Radeon HD 6790		2150 points
	Difference: 14970 (696%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

In theory, the GeForce GTX 980 Ti should perform a lot faster than the Radeon HD 6790 in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 201600 (150%)

Texel Rate

The GeForce GTX 980 Ti is a lot (more or less 424%) more effective at texture filtering than the Radeon HD 6790. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 142400 (424%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980 Ti is superior to the Radeon HD 6790, by far. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 82560 (614%)

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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core 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 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 get to the max fill rate.