Radeon HD 7790 vs Radeon RX 6950 XT

Intro

Compare those specs to the Radeon RX 6950 XT, which has a core clock speed of 1925 MHz and a GDDR6 memory speed of 2250 MHz. It also features a 256-bit bus, and makes use of a 7 nm design. It features 5120 SPUs, 320 Texture Address Units, and 128 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 250 Watts (294%)

Memory Bandwidth

Performance-wise, the Radeon RX 6950 XT should theoretically be quite a bit superior to the Radeon HD 7790 in general. (explain)

Radeon RX 6950 XT		589824 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 493824 (514%)

Texel Rate

The Radeon RX 6950 XT is a lot (about 1000%) better at texture filtering than the Radeon HD 7790. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 560000 (1000%)

Pixel Rate

The Radeon RX 6950 XT should be a lot (approximately 1440%) better at anti-aliasing than the Radeon HD 7790, and able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 230400 (1440%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of 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 amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.