GeForce RTX 3080 Ti vs Radeon HD 7790

Intro

Compare those specs to the Radeon HD 7790, which has clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 265 Watts (312%)

Memory Bandwidth

The GeForce RTX 3080 Ti should in theory perform a lot faster than the Radeon HD 7790 overall. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 838297 (873%)

Texel Rate

The GeForce RTX 3080 Ti should be quite a bit (about 680%) more effective at AF than the Radeon HD 7790. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 380800 (680%)

Pixel Rate

The GeForce RTX 3080 Ti is a lot (approximately 856%) faster with regards to full screen anti-aliasing than the Radeon HD 7790, and also capable of handling higher screen resolutions better. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 136880 (856%)

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 information (counted in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.