Radeon HD 7950 vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which makes use of a 7 nm design. AMD has set the core speed at 2055 MHz. The GDDR6 RAM is set to run at a frequency of 2190 MHz on this specific card. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon HD 7950		200 Watts
	Difference: 24 Watts (14%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6650 XT should theoretically be a small bit superior to the Radeon HD 7950 overall. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 47072 (20%)

Texel Rate

The Radeon RX 6650 XT should be quite a bit (more or less 194%) faster with regards to anisotropic filtering than the Radeon HD 7950. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 173440 (194%)

Pixel Rate

The Radeon RX 6650 XT is much (approximately 414%) better at full screen anti-aliasing than the Radeon HD 7950, and able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 105920 (414%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.