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GeForce GTX 880M vs Radeon HD 5870

Intro

The GeForce GTX 880M has a GPU clock speed of 954 MHz, and the 4096 MB of GDDR5 RAM is set to run at 1000 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M 130 Watts
Radeon HD 5870 188 Watts
Difference: 58 Watts (45%)

Memory Bandwidth

The Radeon HD 5870, in theory, should be a little bit faster than the GeForce GTX 880M in general. (explain)

Radeon HD 5870 153600 MB/sec
GeForce GTX 880M 128000 MB/sec
Difference: 25600 (20%)

Texel Rate

The GeForce GTX 880M should be much (more or less 80%) better at AF than the Radeon HD 5870. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 5870 68000 Mtexels/sec
Difference: 54112 (80%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 880M is superior to the Radeon HD 5870, not by a very large margin though. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 5870 27200 Mpixels/sec
Difference: 3328 (12%)

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 880M

Amazon.com

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Radeon HD 5870

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 880M Radeon HD 5870
Manufacturer nVidia AMD
Year March 12 2014 September 23, 2009
Code Name GK104 Cypress XT
Memory 4096 MB 1024 MB
Core Speed 954 MHz 850 MHz
Memory Speed 4000 MHz 4800 MHz
Power (Max TDP) 130 watts 188 watts
Bandwidth 128000 MB/sec 153600 MB/sec
Texel Rate 122112 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 1536 1600(320x5)
Texture Mapping Units 128 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 2154 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 5870

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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