GeForce RTX 3080 12 GB vs Radeon HD 6750 1GB

Intro

Compare that to the Radeon HD 6750 1GB, which features a clock speed of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 Texture Address Units, and 16 Raster Operation 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 better than the Radeon HD 6750 1GB in general. (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 should be a lot (approximately 1252%) faster with regards to texture filtering 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 is much (more or less 1117%) more effective at AA than the Radeon HD 6750 1GB, and also should be able to handle higher screen resolutions without slowing down too much. (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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it must 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, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.