GeForce GTX 1050 3GB vs Radeon HD 7990

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050 3GB		75 Watts
Radeon HD 7990		375 Watts
	Difference: 300 Watts (400%)

Memory Bandwidth

The Radeon HD 7990 should theoretically perform quite a bit faster than the GeForce GTX 1050 3GB in general. (explain)

Radeon HD 7990		576000 MB/sec
GeForce GTX 1050 3GB		86016 MB/sec
	Difference: 489984 (570%)

Texel Rate

The Radeon HD 7990 will be quite a bit (more or less 264%) more effective at texture filtering than the GeForce GTX 1050 3GB. (explain)

Radeon HD 7990		243200 Mtexels/sec
GeForce GTX 1050 3GB		66816 Mtexels/sec
	Difference: 176384 (264%)

Pixel Rate

The Radeon HD 7990 is quite a bit (about 82%) more effective at anti-aliasing than the GeForce GTX 1050 3GB, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7990		60800 Mpixels/sec
GeForce GTX 1050 3GB		33408 Mpixels/sec
	Difference: 27392 (82%)

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 megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.