GeForce GTX 1630 vs Radeon HD 7870 XT

Intro

Compare all that to the Radeon HD 7870 XT, which has GPU core speed of 925 MHz, and 2048 MB of GDDR5 RAM set to run at 1500 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 96 Texture Address Units, 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 7870 XT		185 Watts
	Difference: 110 Watts (147%)

Memory Bandwidth

The Radeon HD 7870 XT should in theory be quite a bit faster than the GeForce GTX 1630 in general. (explain)

Radeon HD 7870 XT		192000 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 93696 (95%)

Texel Rate

The Radeon HD 7870 XT will be quite a bit (more or less 59%) better at texture filtering than the GeForce GTX 1630. (explain)

Radeon HD 7870 XT		88800 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 33120 (59%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 7870 XT is superior to the GeForce GTX 1630, but only just. (explain)

Radeon HD 7870 XT		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 largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.