GeForce RTX 3080 12 GB vs Radeon HD 6750 1GB

Intro

Compare those specs to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this particular model. It features 720 SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 264 Watts (307%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 12 GB should in theory be much superior to the Radeon HD 6750 1GB overall. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 870298 (1360%)

Texel Rate

The GeForce RTX 3080 12 GB will be quite a bit (about 1252%) faster with regards to AF than the Radeon HD 6750 1GB. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 326700 (1252%)

Pixel Rate

The GeForce RTX 3080 12 GB should be quite a bit (about 1117%) more effective at AA than the Radeon HD 6750 1GB, and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 129520 (1117%)

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 (in units of megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at 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 could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.