GeForce RTX 3070 Ti vs Radeon HD 7990

Intro

Compare those specifications to the Radeon HD 7990, which features a core clock speed of 950 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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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

The GeForce RTX 3070 Ti should in theory perform 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 should be quite a bit (approximately 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

The GeForce RTX 3070 Ti should be much (approximately 149%) faster with regards to FSAA than the Radeon HD 7990, and also able to handle higher screen resolutions without slowing down too much. (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: Bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video 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 maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.