GeForce GTX 1070 Ti vs Radeon HD 7990

Intro

Compare those specs to the Radeon HD 7990, which makes use of a 28 nm design. AMD has set the core speed at 950 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this model. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

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

GeForce GTX 1070 Ti		19808 points
Radeon HD 7990		15520 points
	Difference: 4288 (28%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 Ti		180 Watts
Radeon HD 7990		375 Watts
	Difference: 195 Watts (108%)

Memory Bandwidth

The Radeon HD 7990 should in theory be much faster than the GeForce GTX 1070 Ti in general. (explain)

Radeon HD 7990		576000 MB/sec
GeForce GTX 1070 Ti		262144 MB/sec
	Difference: 313856 (120%)

Texel Rate

The GeForce GTX 1070 Ti should be a small bit (about 0%) more effective at texture filtering than the Radeon HD 7990. (explain)

GeForce GTX 1070 Ti		244264 Mtexels/sec
Radeon HD 7990		243200 Mtexels/sec
	Difference: 1064 (0%)

Pixel Rate

The GeForce GTX 1070 Ti will be a lot (approximately 69%) faster with regards to FSAA than the Radeon HD 7990, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 1070 Ti		102848 Mpixels/sec
Radeon HD 7990		60800 Mpixels/sec
	Difference: 42048 (69%)

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 information (measured in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 applied in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.