GeForce GTX 1630 vs Radeon HD 4790

Intro

Compare all that to the Radeon HD 4790, which features clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 memory. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 4790 should theoretically be a little bit better than the GeForce GTX 1630 in general. (explain)

Radeon HD 4790		102400 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 4096 (4%)

Texel Rate

The GeForce GTX 1630 is quite a bit (about 190%) better at AF than the Radeon HD 4790. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 4790		19200 Mtexels/sec
	Difference: 36480 (190%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1630 is the winner, by far. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 4790		9600 Mpixels/sec
	Difference: 18240 (190%)

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 max amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 are applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs 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 also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.