GeForce RTX 4080 vs Radeon RX 6700 XT

Intro

Compare those specifications to the Radeon RX 6700 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 2321 MHz. The GDDR6 RAM works at a frequency of 2000 MHz on this particular card. It features 2560 SPUs as well as 160 TAUs 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 4080		320 Watts
	Difference: 90 Watts (39%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 4080 should in theory be much superior to the Radeon RX 6700 XT overall. (explain)

GeForce RTX 4080		734003 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 340787 (87%)

Texel Rate

The GeForce RTX 4080 is much (approximately 81%) more effective at anisotropic filtering than the Radeon RX 6700 XT. (explain)

GeForce RTX 4080		670320 Mtexels/sec
Radeon RX 6700 XT		371360 Mtexels/sec
	Difference: 298960 (81%)

Pixel Rate

The GeForce RTX 4080 should be much (approximately 66%) faster with regards to anti-aliasing than the Radeon RX 6700 XT, and also able to handle higher resolutions while still performing well. (explain)

GeForce RTX 4080		246960 Mpixels/sec
Radeon RX 6700 XT		148544 Mpixels/sec
	Difference: 98416 (66%)

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 max amount of information (in units of MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling 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 a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.