Radeon R9 390X 8G vs Radeon RX 6700 XT

Intro

Compare all of that to the Radeon RX 6700 XT, which makes use of a 7 nm design. AMD has set the core speed at 2321 MHz. The GDDR6 RAM works at a frequency of 2000 MHz on this specific model. It features 2560 SPUs along with 160 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT		230 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 45 Watts (20%)

Memory Bandwidth

The Radeon RX 6700 XT should theoretically perform a bit faster than the Radeon R9 390X 8G in general. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon R9 390X 8G		384000 MB/sec
	Difference: 9216 (2%)

Texel Rate

The Radeon RX 6700 XT should be much (about 101%) better at texture filtering than the Radeon R9 390X 8G. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 186560 (101%)

Pixel Rate

The Radeon RX 6700 XT will be quite a bit (more or less 121%) better at AA than the Radeon R9 390X 8G, and should be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 81344 (121%)

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 data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs 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 fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.