Radeon R9 390 8G vs Radeon RX 6700 XT

Intro

Compare all that to the Radeon RX 6700 XT, which comes with core clock speeds of 2321 MHz on the GPU, and 2000 MHz on the (Unknown) MB of GDDR6 memory. It features 2560 SPUs along with 160 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

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

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

Texel Rate

The Radeon RX 6700 XT will be much (more or less 132%) more effective at texture filtering than the Radeon R9 390 8G. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 211360 (132%)

Pixel Rate

The Radeon RX 6700 XT should be much (more or less 132%) better at AA than the Radeon R9 390 8G, and also able to handle higher screen resolutions better. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 84544 (132%)

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 data (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core 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 - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.