GeForce GTX 1630 vs Radeon HD 4870 X2

Intro

Compare that to the Radeon HD 4870 X2, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 RAM set to run at 900 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 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 4870 X2		350 Watts
	Difference: 275 Watts (367%)

Memory Bandwidth

Theoretically, the Radeon HD 4870 X2 should be quite a bit faster than the GeForce GTX 1630 in general. (explain)

Radeon HD 4870 X2		230400 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 132096 (134%)

Texel Rate

The Radeon HD 4870 X2 is a little bit (approximately 8%) faster with regards to AF than the GeForce GTX 1630. (explain)

Radeon HD 4870 X2		60000 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 4320 (8%)

Pixel Rate

The GeForce GTX 1630 will be just a bit (more or less 16%) faster with regards to full screen anti-aliasing than the Radeon HD 4870 X2, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 4870 X2		24000 Mpixels/sec
	Difference: 3840 (16%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.