GeForce GTX 1050 vs Radeon HD 4870 X2

Intro

Compare all of that to the Radeon HD 4870 X2, which comes with a clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050		75 Watts
Radeon HD 4870 X2		350 Watts
	Difference: 275 Watts (367%)

Memory Bandwidth

In theory, the Radeon HD 4870 X2 is 101% faster than the GeForce GTX 1050 overall, because of its higher data rate. (explain)

Radeon HD 4870 X2		230400 MB/sec
GeForce GTX 1050		114688 MB/sec
	Difference: 115712 (101%)

Texel Rate

The Radeon HD 4870 X2 will be a bit (more or less 11%) more effective at texture filtering than the GeForce GTX 1050. (explain)

Radeon HD 4870 X2		60000 Mtexels/sec
GeForce GTX 1050		54160 Mtexels/sec
	Difference: 5840 (11%)

Pixel Rate

The GeForce GTX 1050 should be quite a bit (more or less 81%) more effective at AA than the Radeon HD 4870 X2, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 1050		43328 Mpixels/sec
Radeon HD 4870 X2		24000 Mpixels/sec
	Difference: 19328 (81%)

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 largest amount of information (in units of megabytes per second) that can be transferred across 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 memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.