GeForce RTX 4090 vs Radeon RX 6700 XT

Intro

Compare those specs to the Radeon RX 6700 XT, which comes with GPU clock speed of 2321 MHz, and (Unknown) MB of GDDR6 memory running at 2000 MHz through a 192-bit bus. It also is made up of 2560 SPUs, 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
GeForce RTX 4090		450 Watts
	Difference: 220 Watts (96%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 4090 should theoretically be a lot superior to the Radeon RX 6700 XT overall. (explain)

GeForce RTX 4090		1042432 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 649216 (165%)

Texel Rate

The GeForce RTX 4090 is quite a bit (more or less 208%) more effective at anisotropic filtering than the Radeon RX 6700 XT. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
Radeon RX 6700 XT		371360 Mtexels/sec
	Difference: 772960 (208%)

Pixel Rate

The GeForce RTX 4090 will be a lot (about 165%) faster with regards to FSAA than the Radeon RX 6700 XT, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce RTX 4090		393360 Mpixels/sec
Radeon RX 6700 XT		148544 Mpixels/sec
	Difference: 244816 (165%)

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 over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.