GeForce GTX 970 vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which makes use of a 7 nm design. AMD has set the core speed at 1700 MHz. The GDDR6 RAM runs at a frequency of 2000 MHz on this specific card. It features 3840 SPUs as well as 240 Texture Address Units and 96 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
Radeon RX 6800		250 Watts
	Difference: 105 Watts (72%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6800 should theoretically be a lot better than the GeForce GTX 970 overall. (explain)

Radeon RX 6800		524288 MB/sec
GeForce GTX 970		224000 MB/sec
	Difference: 300288 (134%)

Texel Rate

The Radeon RX 6800 will be much (about 274%) more effective at AF than the GeForce GTX 970. (explain)

Radeon RX 6800		408000 Mtexels/sec
GeForce GTX 970		109200 Mtexels/sec
	Difference: 298800 (274%)

Pixel Rate

The Radeon RX 6800 is much (about 143%) faster with regards to anti-aliasing than the GeForce GTX 970, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 6800		163200 Mpixels/sec
GeForce GTX 970		67200 Mpixels/sec
	Difference: 96000 (143%)

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 transported over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 number of texture map elements (texels) that can be processed per second. This figure is worked out 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.