GeForce GTX 1630 vs Radeon HD 7970

Intro

Compare those specifications to the Radeon HD 7970, which features a core clock frequency of 925 MHz and a GDDR5 memory speed of 1375 MHz. It also features a 384-bit bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 7970		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7970 should be 169% quicker than the GeForce GTX 1630 in general, due to its greater data rate. (explain)

Radeon HD 7970		264000 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 165696 (169%)

Texel Rate

The Radeon HD 7970 will be quite a bit (about 113%) more effective at AF than the GeForce GTX 1630. (explain)

Radeon HD 7970		118400 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 62720 (113%)

Pixel Rate

The Radeon HD 7970 should be a little bit (more or less 6%) more effective at FSAA than the GeForce GTX 1630, and also should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 7970		29600 Mpixels/sec
GeForce GTX 1630		27840 Mpixels/sec
	Difference: 1760 (6%)

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 max amount of data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 can be processed per second. This number is calculated by multiplying the total number 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.