GeForce GTX 1070 Ti vs Radeon HD 7990

Intro

Compare that to the Radeon HD 7990, which comes with GPU core speed of 950 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 Raster Operation 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

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

Theoretically speaking, the Radeon HD 7990 should be 120% quicker than the GeForce GTX 1070 Ti overall, due to its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 1070 Ti is a little bit (approximately 0%) faster with regards to 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 should be a lot (more or less 69%) better at AA than the Radeon HD 7990, and also should be able to handle higher resolutions while still performing well. (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: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.