Radeon HD 7970 vs Radeon RX 6700 XT

Intro

Compare those specs to the Radeon RX 6700 XT, which features GPU clock speed of 2321 MHz, and (Unknown) MB of GDDR6 memory set to run at 2000 MHz through a 192-bit bus. It also features 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT		230 Watts
Radeon HD 7970		250 Watts
	Difference: 20 Watts (9%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6700 XT should theoretically be much superior to the Radeon HD 7970 in general. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon HD 7970		264000 MB/sec
	Difference: 129216 (49%)

Texel Rate

The Radeon RX 6700 XT will be quite a bit (about 214%) faster with regards to AF than the Radeon HD 7970. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 252960 (214%)

Pixel Rate

The Radeon RX 6700 XT should be a lot (approximately 402%) better at anti-aliasing than the Radeon HD 7970, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 118944 (402%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.