GeForce GTX 1630 vs Radeon HD 4890 2GB

Intro

Compare all that to the Radeon HD 4890 2GB, which features a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM set to run at 975 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 4890 2GB		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

The Radeon HD 4890 2GB, in theory, should be much faster than the GeForce GTX 1630 overall. (explain)

Radeon HD 4890 2GB		124800 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 26496 (27%)

Texel Rate

The GeForce GTX 1630 is quite a bit (more or less 39%) more effective at anisotropic filtering than the Radeon HD 4890 2GB. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 4890 2GB		40000 Mtexels/sec
	Difference: 15680 (39%)

Pixel Rate

The GeForce GTX 1630 will be a lot (more or less 74%) better at full screen anti-aliasing than the Radeon HD 4890 2GB, and also will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 4890 2GB		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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This 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 graphics 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 most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.