Nvidia Titan Xp vs Radeon HD 7990

Intro

Compare that to the Radeon HD 7990, which makes use of a 28 nm design. AMD has clocked the core speed at 950 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this model. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

In theory, the Radeon HD 7990 is 3% quicker than the Nvidia Titan Xp in general, because of its greater data rate. (explain)

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

Texel Rate

The Nvidia Titan Xp will be much (approximately 56%) more effective at texture 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 a lot (more or less 150%) faster with regards to full screen anti-aliasing than the Radeon HD 7990, and also able to handle higher resolutions more effectively. (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 largest amount of data (in units of MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.