Radeon RX 6700 XT vs Radeon RX 7900 XTX

Intro

Compare all of that to the Radeon RX 7900 XTX, which comes with GPU clock speed of 1855 MHz, and 24576 MB of GDDR6 memory running at 2500 MHz through a 384-bit bus. It also is comprised of 6144 SPUs, 384 TAUs, and 192 ROPs.

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 should be much (more or less 92%) better at texture 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 should be quite a bit (about 140%) more effective at FSAA than the Radeon RX 6700 XT, and should be capable of handling higher resolutions while still performing well. (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 max amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.