GeForce RTX 2060 vs Radeon HD 7990

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2060		160 Watts
Radeon HD 7990		375 Watts
	Difference: 215 Watts (134%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7990 will be 67% faster than the GeForce RTX 2060 in general, due to its higher bandwidth. (explain)

Radeon HD 7990		576000 MB/sec
GeForce RTX 2060		344064 MB/sec
	Difference: 231936 (67%)

Texel Rate

The Radeon HD 7990 is a lot (more or less 48%) better at texture filtering than the GeForce RTX 2060. (explain)

Radeon HD 7990		243200 Mtexels/sec
GeForce RTX 2060		163800 Mtexels/sec
	Difference: 79400 (48%)

Pixel Rate

The GeForce RTX 2060 should be a bit (approximately 8%) faster with regards to AA than the Radeon HD 7990, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce RTX 2060		65520 Mpixels/sec
Radeon HD 7990		60800 Mpixels/sec
	Difference: 4720 (8%)

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 largest amount of information (measured in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.