GeForce GTX 1630 vs Radeon HD 7790

Intro

Compare all of that to the Radeon HD 7790, which has core speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 RAM. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

Performance-wise, the GeForce GTX 1630 should theoretically be a little bit superior to the Radeon HD 7790 overall. (explain)

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

Texel Rate

The Radeon HD 7790 will be a bit (more or less 1%) more effective at AF 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%) more effective at FSAA than the Radeon HD 7790, and also able to handle higher resolutions better. (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 largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 bandwidth is, the lower the ability to reach the maximum fill rate.