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GeForce GTX Titan Black vs Radeon R9 M275X

Intro

The GeForce GTX Titan Black features core clock speeds of 889 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 RAM. It features 2880 SPUs as well as 240 Texture Address Units and 48 Rasterization Operator Units.

Compare that to the Radeon R9 M275X, which features a clock speed of 900 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce GTX Titan Black 250 Watts
Difference: 200 Watts (400%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan Black should in theory be a lot superior to the Radeon R9 M275X in general. (explain)

GeForce GTX Titan Black 336000 MB/sec
Radeon R9 M275X 72000 MB/sec
Difference: 264000 (367%)

Texel Rate

The GeForce GTX Titan Black should be much (more or less 493%) better at anisotropic filtering than the Radeon R9 M275X. (explain)

GeForce GTX Titan Black 213360 Mtexels/sec
Radeon R9 M275X 36000 Mtexels/sec
Difference: 177360 (493%)

Pixel Rate

The GeForce GTX Titan Black will be much (more or less 196%) more effective at anti-aliasing than the Radeon R9 M275X, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX Titan Black 42672 Mpixels/sec
Radeon R9 M275X 14400 Mpixels/sec
Difference: 28272 (196%)

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

Display Prices

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GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon R9 M275X

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.

Specifications

Display Specifications

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Model GeForce GTX Titan Black Radeon R9 M275X
Manufacturer nVidia AMD
Year February 2014 May 1 2014
Code Name GK110-430 Venus XTX
Memory 6144 MB 2048 MB
Core Speed 889 MHz 900 MHz
Memory Speed 7000 MHz 4500 MHz
Power (Max TDP) 250 watts 50 watts
Bandwidth 336000 MB/sec 72000 MB/sec
Texel Rate 213360 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 2880 640
Texture Mapping Units 240 40
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 7080 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.4 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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 potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon R9 M275X

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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