Nvidia Titan Xp vs Radeon HD 7990

Intro

Compare that to the Radeon HD 7990, which comes with a clock frequency 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 made up of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Nvidia Titan Xp		27938 points
Radeon HD 7990		15520 points
	Difference: 12418 (80%)

Zcash Mining Hash Rate

Nvidia Titan Xp		810 Sol/s
Radeon HD 7990		513 Sol/s
	Difference: 297 (58%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan Xp		250 Watts
Radeon HD 7990		375 Watts
	Difference: 125 Watts (50%)

Memory Bandwidth

The Radeon HD 7990 should in theory be just a bit faster than the Nvidia Titan Xp in general. (explain)

Radeon HD 7990		576000 MB/sec
Nvidia Titan Xp		560845 MB/sec
	Difference: 15155 (3%)

Texel Rate

The Nvidia Titan Xp should be much (approximately 56%) more effective at anisotropic filtering than the Radeon HD 7990. (explain)

Nvidia Titan Xp		379680 Mtexels/sec
Radeon HD 7990		243200 Mtexels/sec
	Difference: 136480 (56%)

Pixel Rate

The Nvidia Titan Xp is quite a bit (about 150%) better at AA than the Radeon HD 7990, and also capable of handling higher resolutions without slowing down too much. (explain)

Nvidia Titan Xp		151872 Mpixels/sec
Radeon HD 7990		60800 Mpixels/sec
	Difference: 91072 (150%)

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 max amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 maximum fill rate.