GeForce GTX Titan Black vs Radeon HD 7870 XT

Intro

Compare that to the Radeon HD 7870 XT, which features GPU clock speed of 925 MHz, and 2048 MB of GDDR5 RAM running at 1500 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 96 TAUs, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX Titan Black		11666 points
Radeon HD 7870 XT		6390 points
	Difference: 5276 (83%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT		185 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 65 Watts (35%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan Black should be 75% faster than the Radeon HD 7870 XT in general, due to its greater bandwidth. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 144000 (75%)

Texel Rate

The GeForce GTX Titan Black will be quite a bit (more or less 140%) more effective at AF than the Radeon HD 7870 XT. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 124560 (140%)

Pixel Rate

The GeForce GTX Titan Black is much (more or less 44%) faster with regards to AA than the Radeon HD 7870 XT, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 13072 (44%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better 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 most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.