GeForce GTX 1070 Ti vs Radeon HD 4870 X2

Intro

Compare those specifications to the Radeon HD 4870 X2, which features clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 Ti		180 Watts
Radeon HD 4870 X2		350 Watts
	Difference: 170 Watts (94%)

Memory Bandwidth

The GeForce GTX 1070 Ti, in theory, should be a bit faster than the Radeon HD 4870 X2 overall. (explain)

GeForce GTX 1070 Ti		262144 MB/sec
Radeon HD 4870 X2		230400 MB/sec
	Difference: 31744 (14%)

Texel Rate

The GeForce GTX 1070 Ti will be much (approximately 307%) more effective at AF than the Radeon HD 4870 X2. (explain)

GeForce GTX 1070 Ti		244264 Mtexels/sec
Radeon HD 4870 X2		60000 Mtexels/sec
	Difference: 184264 (307%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1070 Ti is the winner, and very much so. (explain)

GeForce GTX 1070 Ti		102848 Mpixels/sec
Radeon HD 4870 X2		24000 Mpixels/sec
	Difference: 78848 (329%)

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: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.