Radeon RX 6700 XT vs Radeon RX 7900 XTX

Intro

Compare those specifications to the Radeon RX 7900 XTX, which makes use of a 5 nm design. AMD has set the core speed at 1855 MHz. The GDDR6 memory runs at a frequency of 2500 MHz on this particular card. It features 6144 SPUs along with 384 Texture Address Units and 192 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 RX 7900 XTX		355 Watts
	Difference: 125 Watts (54%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XTX should be a lot faster than the Radeon RX 6700 XT overall. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 589824 (150%)

Texel Rate

The Radeon RX 7900 XTX is much (approximately 92%) better at anisotropic filtering than the Radeon RX 6700 XT. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon RX 6700 XT		371360 Mtexels/sec
	Difference: 340960 (92%)

Pixel Rate

The Radeon RX 7900 XTX is a lot (approximately 140%) faster with regards to anti-aliasing than the Radeon RX 6700 XT, and will be capable of handling higher screen resolutions better. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon RX 6700 XT		148544 Mpixels/sec
	Difference: 207616 (140%)

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 largest amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.