GeForce GTX 1630 vs Radeon HD 4870 512MB

Intro

Compare those specs to the Radeon HD 4870 512MB, which features a GPU core clock speed of 750 MHz, and 512 MB of GDDR5 memory set to run at 900 MHz through a 256-bit bus. It also is made up of 800(160x5) Stream Processors, 40 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 4870 512MB		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

The Radeon HD 4870 512MB, in theory, should perform just a bit faster than the GeForce GTX 1630 in general. (explain)

Radeon HD 4870 512MB		115200 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 16896 (17%)

Texel Rate

The GeForce GTX 1630 will be much (approximately 86%) more effective at texture filtering than the Radeon HD 4870 512MB. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 4870 512MB		30000 Mtexels/sec
	Difference: 25680 (86%)

Pixel Rate

The GeForce GTX 1630 should be quite a bit (about 132%) better at full screen anti-aliasing than the Radeon HD 4870 512MB, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 4870 512MB		12000 Mpixels/sec
	Difference: 15840 (132%)

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 (counted in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.