GeForce RTX 3080 12 GB vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which uses a 40 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 RAM is set to run at a frequency of 1050 MHz on this particular card. It features 800 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 242 Watts (224%)

Memory Bandwidth

The GeForce RTX 3080 12 GB should in theory be a lot faster than the Radeon HD 6770 in general. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 867098 (1290%)

Texel Rate

The GeForce RTX 3080 12 GB should be a lot (about 880%) better at anisotropic filtering than the Radeon HD 6770. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 316800 (880%)

Pixel Rate

The GeForce RTX 3080 12 GB is quite a bit (approximately 880%) better at AA than the Radeon HD 6770, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 126720 (880%)

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 megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.