GeForce GTX 1070 Ti vs Radeon HD 4870 X2

Intro

Compare all of that to the Radeon HD 4870 X2, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 RAM running at 900 MHz through a 256-bit bus. It also is made up of 800(160x5) Stream Processors, 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 should in theory 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 should be much (about 307%) faster with regards to anisotropic filtering 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 will be a lot (more or less 329%) faster with regards to FSAA than the Radeon HD 4870 X2, and also able to handle 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 largest amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.