GeForce GTX 1630 vs Radeon HD 7790

Intro

Compare that to the Radeon HD 7790, which has a clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 7790		85 Watts
	Difference: 10 Watts (13%)

Memory Bandwidth

The GeForce GTX 1630, in theory, should perform a bit faster than the Radeon HD 7790 in general. (explain)

GeForce GTX 1630		98304 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 2304 (2%)

Texel Rate

The Radeon HD 7790 is a little bit (about 1%) better at anisotropic filtering than the GeForce GTX 1630. (explain)

Radeon HD 7790		56000 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 320 (1%)

Pixel Rate

The GeForce GTX 1630 will be a lot (approximately 74%) better at AA than the Radeon HD 7790, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 11840 (74%)

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 data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.