GeForce GTX 1630 vs Radeon HD 7950 3GB

Intro

Compare that to the Radeon HD 7950 3GB, which comes with a core clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

In theory, the Radeon HD 7950 3GB will be 144% faster than the GeForce GTX 1630 overall, because of its higher bandwidth. (explain)

Radeon HD 7950 3GB		240000 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 141696 (144%)

Texel Rate

The Radeon HD 7950 3GB is a lot (approximately 61%) faster with regards to anisotropic filtering than the GeForce GTX 1630. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 33920 (61%)

Pixel Rate

The GeForce GTX 1630 should be just a bit (about 9%) faster with regards to anti-aliasing than the Radeon HD 7950 3GB, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 2240 (9%)

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 (in units of megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling 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 the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.