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GeForce GTX Titan Black vs Radeon HD 7870 XT

Intro

The GeForce GTX Titan Black uses a 28 nm design. nVidia has clocked the core speed at 889 MHz. The GDDR5 RAM works at a speed of 1750 MHz on this particular model. It features 2880 SPUs along with 240 Texture Address Units and 48 Rasterization Operator Units.

Compare those specs to the Radeon HD 7870 XT, which has a GPU core clock speed of 925 MHz, and 2048 MB of GDDR5 memory set to run at 1500 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 96 Texture Address Units, and 32 ROPs.

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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

The GeForce GTX Titan Black, in theory, should perform a lot faster than the Radeon HD 7870 XT overall. (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 a lot (more or less 140%) more effective at texture filtering 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 should be quite a bit (more or less 44%) better at full screen anti-aliasing than the Radeon HD 7870 XT, and also will be able to handle higher resolutions better. (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

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GeForce GTX Titan Black

Amazon.com

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Radeon HD 7870 XT

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX Titan Black Radeon HD 7870 XT
Manufacturer nVidia AMD
Year February 2014 November 2012
Code Name GK110-430 Tahiti LE
Memory 6144 MB 2048 MB
Core Speed 889 MHz 925 MHz
Memory Speed 7000 MHz 6000 MHz
Power (Max TDP) 250 watts 185 watts
Bandwidth 336000 MB/sec 192000 MB/sec
Texel Rate 213360 Mtexels/sec 88800 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 2880 1536
Texture Mapping Units 240 96
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.4 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of 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 number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon HD 7870 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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