GeForce RTX 3080 vs Radeon HD 5870

Intro

Compare that to the Radeon HD 5870, which features clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 RAM. It features 1600(320x5) SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5870		188 Watts
GeForce RTX 3080		320 Watts
	Difference: 132 Watts (70%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 should in theory be quite a bit better than the Radeon HD 5870 in general. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon HD 5870		153600 MB/sec
	Difference: 624947 (407%)

Texel Rate

The GeForce RTX 3080 is quite a bit (approximately 476%) more effective at AF than the Radeon HD 5870. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon HD 5870		68000 Mtexels/sec
	Difference: 323680 (476%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 3080 is superior to the Radeon HD 5870, by a large margin. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon HD 5870		27200 Mpixels/sec
	Difference: 111040 (408%)

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 MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed per second. This number 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.