GeForce GTX 1630 vs Radeon HD 4790

Intro

Compare all that to the Radeon HD 4790, which comes with GPU clock speed of 600 MHz, and 512 MB of GDDR5 RAM running at 800 MHz through a 256-bit bus. It also features 640(128x5) Stream Processors, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 4790 should in theory be a small bit superior to the GeForce GTX 1630 overall. (explain)

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

Texel Rate

The GeForce GTX 1630 will be much (approximately 190%) faster with regards to texture filtering than the Radeon HD 4790. (explain)

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

Pixel Rate

The GeForce GTX 1630 is much (approximately 190%) faster with regards to FSAA than the Radeon HD 4790, and also should be able to handle higher screen resolutions without losing too much performance. (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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.