GeForce RTX 3070 Ti vs Radeon HD 7870 XT

Intro

Compare those specifications to the Radeon HD 7870 XT, which makes use of a 28 nm design. AMD has set the core frequency at 925 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this specific model. It features 1536 SPUs as well as 96 TAUs and 32 ROPs.

Display Graphs

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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

Performance-wise, the GeForce RTX 3070 Ti should theoretically be quite a bit superior to the Radeon HD 7870 XT overall. (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 should be a lot (more or less 241%) faster with regards to anisotropic 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 using high levels of AA is important to you, then the GeForce RTX 3070 Ti is a better choice, and very much so. (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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units by the core 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 maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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 max fill rate.