GeForce GTX 1630 vs Radeon HD 4830 1GB

Intro

Compare those specs to the Radeon HD 4830 1GB, which makes use of a 55 nm design. AMD has clocked the core speed at 575 MHz. The GDDR4 RAM runs at a speed of 900 MHz on this particular card. It features 640(128x5) SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 4830 1GB		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

In theory, the GeForce GTX 1630 should perform quite a bit faster than the Radeon HD 4830 1GB overall. (explain)

GeForce GTX 1630		98304 MB/sec
Radeon HD 4830 1GB		57600 MB/sec
	Difference: 40704 (71%)

Texel Rate

The GeForce GTX 1630 is a lot (about 203%) better at texture filtering than the Radeon HD 4830 1GB. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 37280 (203%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1630 is a better choice, and very much so. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 4830 1GB		9200 Mpixels/sec
	Difference: 18640 (203%)

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 (measured in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.