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GeForce GTX Titan Black vs Radeon R9 M265X

Intro

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

Compare those specs to the Radeon R9 M265X, which has GPU clock speed of 575 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX Titan Black, in theory, should be quite a bit faster than the Radeon R9 M265X overall. (explain)

GeForce GTX Titan Black 336000 MB/sec
Radeon R9 M265X 72000 MB/sec
Difference: 264000 (367%)

Texel Rate

The GeForce GTX Titan Black should be quite a bit (about 828%) faster with regards to AF than the Radeon R9 M265X. (explain)

GeForce GTX Titan Black 213360 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 190360 (828%)

Pixel Rate

The GeForce GTX Titan Black will be much (approximately 364%) better at anti-aliasing than the Radeon R9 M265X, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan Black 42672 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 33472 (364%)

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

Check prices at:

Radeon R9 M265X

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

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Model GeForce GTX Titan Black Radeon R9 M265X
Manufacturer nVidia AMD
Year February 2014 May 1 2014
Code Name GK110-430 Venus Pro
Memory 6144 MB 2048 MB
Core Speed 889 MHz 575 MHz
Memory Speed 7000 MHz 4500 MHz
Power (Max TDP) 250 watts (Unknown) watts
Bandwidth 336000 MB/sec 72000 MB/sec
Texel Rate 213360 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 9200 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 largest amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon R9 M265X

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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