GeForce RTX 3070 Ti vs Radeon HD 7870 XT

Intro

Compare all that to the Radeon HD 7870 XT, which features a core clock speed of 925 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It features 1536 SPUs, 96 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT		185 Watts
GeForce RTX 3070 Ti		290 Watts
	Difference: 105 Watts (57%)

Memory Bandwidth

In theory, the GeForce RTX 3070 Ti is 224% quicker than the Radeon HD 7870 XT in general, due to its greater bandwidth. (explain)

GeForce RTX 3070 Ti		622899 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 430899 (224%)

Texel Rate

The GeForce RTX 3070 Ti is much (approximately 241%) more effective at texture filtering than the Radeon HD 7870 XT. (explain)

GeForce RTX 3070 Ti		302400 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 213600 (241%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3070 Ti is the winner, by far. (explain)

GeForce RTX 3070 Ti		151200 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 121600 (411%)

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 max amount of data (counted in MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per 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 amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.