GeForce RTX 2080 vs Radeon HD 7870 XT

Intro

Compare those specifications to the Radeon HD 7870 XT, which comes with clock speeds of 925 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce RTX 2080		26155 points
Radeon HD 7870 XT		6390 points
	Difference: 19765 (309%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT		185 Watts
GeForce RTX 2080		215 Watts
	Difference: 30 Watts (16%)

Memory Bandwidth

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

GeForce RTX 2080		458752 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 266752 (139%)

Texel Rate

The GeForce RTX 2080 will be quite a bit (approximately 214%) more effective at texture filtering than the Radeon HD 7870 XT. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 189960 (214%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce RTX 2080 is superior to the Radeon HD 7870 XT, by a large margin. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 67360 (228%)

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 data (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the card will be at handling 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 card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.