GeForce GTX 1050 3GB vs Radeon HD 6990

Intro

Compare those specifications to the Radeon HD 6990, which comes with GPU core speed of 830 MHz, and 2048 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 96 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050 3GB		75 Watts
Radeon HD 6990		375 Watts
	Difference: 300 Watts (400%)

Memory Bandwidth

In theory, the Radeon HD 6990 will be 272% quicker than the GeForce GTX 1050 3GB in general, because of its greater bandwidth. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 1050 3GB		86016 MB/sec
	Difference: 233984 (272%)

Texel Rate

The Radeon HD 6990 will be much (about 139%) more effective at anisotropic filtering than the GeForce GTX 1050 3GB. (explain)

Radeon HD 6990		159360 Mtexels/sec
GeForce GTX 1050 3GB		66816 Mtexels/sec
	Difference: 92544 (139%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6990 is a better choice, by a large margin. (explain)

Radeon HD 6990		53120 Mpixels/sec
GeForce GTX 1050 3GB		33408 Mpixels/sec
	Difference: 19712 (59%)

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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated 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 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 the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.