Radeon HD 7950 3GB vs Radeon RX 6700 XT

Intro

Compare all that to the Radeon RX 6700 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 2321 MHz. The GDDR6 RAM is set to run at a speed of 2000 MHz on this specific card. It features 2560 SPUs as well as 160 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950 3GB		200 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 30 Watts (15%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT should be 64% faster than the Radeon HD 7950 3GB in general, because of its greater data rate. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 153216 (64%)

Texel Rate

The Radeon RX 6700 XT is much (about 314%) faster with regards to texture filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 281760 (314%)

Pixel Rate

The Radeon RX 6700 XT should be quite a bit (about 480%) better at anti-aliasing than the Radeon HD 7950 3GB, and also should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 122944 (480%)

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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, 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 can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.