GeForce GTX 1050 3GB vs Radeon HD 4790

Intro

Compare that to the Radeon HD 4790, which features a clock speed of 600 MHz and a GDDR5 memory frequency of 800 MHz. It also uses a 256-bit memory bus, and uses a 55 nm design. It is made up of 640(128x5) SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 4790 should perform a little bit faster than the GeForce GTX 1050 3GB overall. (explain)

Radeon HD 4790		102400 MB/sec
GeForce GTX 1050 3GB		86016 MB/sec
	Difference: 16384 (19%)

Texel Rate

The GeForce GTX 1050 3GB will be quite a bit (approximately 248%) faster with regards to texture filtering than the Radeon HD 4790. (explain)

GeForce GTX 1050 3GB		66816 Mtexels/sec
Radeon HD 4790		19200 Mtexels/sec
	Difference: 47616 (248%)

Pixel Rate

The GeForce GTX 1050 3GB is a lot (more or less 248%) faster with regards to anti-aliasing than the Radeon HD 4790, and also capable of handling higher resolutions more effectively. (explain)

GeForce GTX 1050 3GB		33408 Mpixels/sec
Radeon HD 4790		9600 Mpixels/sec
	Difference: 23808 (248%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling 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 that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.