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GeForce GTX Titan vs Radeon HD 5870

Intro

The GeForce GTX Titan has core clock speeds of 837 MHz on the GPU, and 1502 MHz on the 6144 MB of GDDR5 memory. It features 2688 SPUs as well as 224 TAUs and 48 ROPs.

Compare all of that to the Radeon HD 5870, which has a core clock frequency of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is made up of 1600(320x5) SPUs, 80 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5870 188 Watts
GeForce GTX Titan 250 Watts
Difference: 62 Watts (33%)

Memory Bandwidth

The GeForce GTX Titan, in theory, should perform a lot faster than the Radeon HD 5870 in general. (explain)

GeForce GTX Titan 288384 MB/sec
Radeon HD 5870 153600 MB/sec
Difference: 134784 (88%)

Texel Rate

The GeForce GTX Titan is quite a bit (more or less 176%) faster with regards to anisotropic filtering than the Radeon HD 5870. (explain)

GeForce GTX Titan 187488 Mtexels/sec
Radeon HD 5870 68000 Mtexels/sec
Difference: 119488 (176%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX Titan is a better choice, by far. (explain)

GeForce GTX Titan 40176 Mpixels/sec
Radeon HD 5870 27200 Mpixels/sec
Difference: 12976 (48%)

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

Amazon.com

Radeon HD 5870

Amazon.com

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 Radeon HD 5870
Manufacturer nVidia AMD
Year February 2013 September 23, 2009
Code Name GK110 Cypress XT
Memory 6144 MB 1024 MB
Core Speed 837 MHz 850 MHz
Memory Speed 6008 MHz 4800 MHz
Power (Max TDP) 250 watts 188 watts
Bandwidth 288384 MB/sec 153600 MB/sec
Texel Rate 187488 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 40176 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 2688 1600(320x5)
Texture Mapping Units 224 80
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 40 nm
Transistors 7080 million 2154 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling 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 can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 bandwidth is, the lower the ability to get to the maximum fill rate.

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