GeForce GTX 970 vs Radeon HD 6790

Intro

Compare all of that to the Radeon HD 6790, which has a core clock frequency of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is comprised of 800 SPUs, 40 Texture Address Units, 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 970		10867 points
Radeon HD 6790		2150 points
	Difference: 8717 (405%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
Radeon HD 6790		150 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970 should perform much faster than the Radeon HD 6790 in general. (explain)

GeForce GTX 970		224000 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 89600 (67%)

Texel Rate

The GeForce GTX 970 should be quite a bit (more or less 225%) faster with regards to AF than the Radeon HD 6790. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 75600 (225%)

Pixel Rate

The GeForce GTX 970 will be a lot (more or less 400%) faster with regards to AA than the Radeon HD 6790, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 53760 (400%)

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 information (measured in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.