GeForce GTX 1630 vs Radeon HD 4870 2GB

Intro

Compare those specs to the Radeon HD 4870 2GB, which has GPU clock speed of 750 MHz, and 2048 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 4870 2GB		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

The Radeon HD 4870 2GB should theoretically perform just a bit faster than the GeForce GTX 1630 overall. (explain)

Radeon HD 4870 2GB		115200 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 16896 (17%)

Texel Rate

The GeForce GTX 1630 should be a lot (more or less 86%) better at AF than the Radeon HD 4870 2GB. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 4870 2GB		30000 Mtexels/sec
	Difference: 25680 (86%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 1630 is the winner, by a large margin. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 4870 2GB		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 max amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the 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 speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.