GeForce RTX 2080 SUPER vs Radeon HD 7870

Intro

Compare all that to the Radeon HD 7870, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this model. It features 1280 SPUs along with 80 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870		175 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 75 Watts (43%)

Memory Bandwidth

The GeForce RTX 2080 SUPER, in theory, should perform quite a bit faster than the Radeon HD 7870 overall. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 354304 (231%)

Texel Rate

The GeForce RTX 2080 SUPER will be quite a bit (more or less 296%) better at anisotropic filtering than the Radeon HD 7870. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 236800 (296%)

Pixel Rate

The GeForce RTX 2080 SUPER should be quite a bit (approximately 230%) faster with regards to FSAA than the Radeon HD 7870, and should be able to handle higher screen resolutions better. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Radeon HD 7870		32000 Mpixels/sec
	Difference: 73600 (230%)

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 largest amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.