GeForce GTX 1070 Ti vs Radeon HD 6990

Intro

Compare all that to the Radeon HD 6990, which has a clock speed of 830 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is made up of 1536 SPUs, 96 Texture Address Units, 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 6990		5820 points
	Difference: 13988 (240%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 Ti		180 Watts
Radeon HD 6990		375 Watts
	Difference: 195 Watts (108%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6990 is 22% faster than the GeForce GTX 1070 Ti in general, due to its higher bandwidth. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 1070 Ti		262144 MB/sec
	Difference: 57856 (22%)

Texel Rate

The GeForce GTX 1070 Ti will be a lot (approximately 53%) more effective at anisotropic filtering than the Radeon HD 6990. (explain)

GeForce GTX 1070 Ti		244264 Mtexels/sec
Radeon HD 6990		159360 Mtexels/sec
	Difference: 84904 (53%)

Pixel Rate

The GeForce GTX 1070 Ti will be a lot (about 94%) better at FSAA than the Radeon HD 6990, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 1070 Ti		102848 Mpixels/sec
Radeon HD 6990		53120 Mpixels/sec
	Difference: 49728 (94%)

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 (counted in MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics 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 could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.