GeForce GTX 1070 Ti vs Radeon HD 4870 X2

Intro

Compare all that to the Radeon HD 4870 X2, which features core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 TAUs 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 should theoretically perform 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 is quite a bit (approximately 307%) faster with regards to 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

The GeForce GTX 1070 Ti is quite a bit (approximately 329%) faster with regards to AA than the Radeon HD 4870 X2, and also should be capable of handling higher resolutions better. (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 maximum amount of information (in units of MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.