GeForce GTX 970 vs Radeon RX 7900 XTX

Intro

Compare those specs to the Radeon RX 7900 XTX, which comes with a clock speed of 1855 MHz and a GDDR6 memory speed of 2500 MHz. It also uses a 384-bit bus, and makes use of a 5 nm design. It is comprised of 6144 SPUs, 384 TAUs, and 192 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 210 Watts (145%)

Memory Bandwidth

The Radeon RX 7900 XTX, in theory, should be quite a bit faster than the GeForce GTX 970 in general. (explain)

Radeon RX 7900 XTX		983040 MB/sec
GeForce GTX 970		224000 MB/sec
	Difference: 759040 (339%)

Texel Rate

The Radeon RX 7900 XTX will be much (approximately 552%) faster with regards to AF than the GeForce GTX 970. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
GeForce GTX 970		109200 Mtexels/sec
	Difference: 603120 (552%)

Pixel Rate

The Radeon RX 7900 XTX will be quite a bit (more or less 430%) better at anti-aliasing than the GeForce GTX 970, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
GeForce GTX 970		67200 Mpixels/sec
	Difference: 288960 (430%)

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 (in units of MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units of the card 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 the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.