GeForce GTX 1630 vs Radeon HD 7870

Intro

Compare those specs to the Radeon HD 7870, which has clock speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 7870		175 Watts
	Difference: 100 Watts (133%)

Memory Bandwidth

In theory, the Radeon HD 7870 is 56% faster than the GeForce GTX 1630 in general, due to its higher bandwidth. (explain)

Radeon HD 7870		153600 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 55296 (56%)

Texel Rate

The Radeon HD 7870 should be quite a bit (more or less 44%) more effective at AF than the GeForce GTX 1630. (explain)

Radeon HD 7870		80000 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 24320 (44%)

Pixel Rate

The Radeon HD 7870 will be a bit (approximately 15%) faster with regards to anti-aliasing than the GeForce GTX 1630, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7870		32000 Mpixels/sec
GeForce GTX 1630		27840 Mpixels/sec
	Difference: 4160 (15%)

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 max amount of information (measured 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 the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.