GeForce RTX 3070 Ti vs Radeon HD 7990

Intro

Compare all of that to the Radeon HD 7990, which features clock speeds of 950 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3070 Ti		290 Watts
Radeon HD 7990		375 Watts
	Difference: 85 Watts (29%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3070 Ti should be a bit faster than the Radeon HD 7990 in general. (explain)

GeForce RTX 3070 Ti		622899 MB/sec
Radeon HD 7990		576000 MB/sec
	Difference: 46899 (8%)

Texel Rate

The GeForce RTX 3070 Ti will be much (more or less 24%) better at texture filtering than the Radeon HD 7990. (explain)

GeForce RTX 3070 Ti		302400 Mtexels/sec
Radeon HD 7990		243200 Mtexels/sec
	Difference: 59200 (24%)

Pixel Rate

If using 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 7990		60800 Mpixels/sec
	Difference: 90400 (149%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.