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GeForce GTX 965M vs Radeon HD 5870

Intro

The GeForce GTX 965M uses a 28 nm design. nVidia has clocked the core speed at 944 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this specific card. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

Compare all of that to the Radeon HD 5870, which makes use of a 40 nm design. AMD has set the core speed at 850 MHz. The GDDR5 memory is set to run at a frequency of 1200 MHz on this specific model. It features 1600(320x5) SPUs as well as 80 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
Radeon HD 5870 188 Watts
Difference: 128 Watts (213%)

Memory Bandwidth

Theoretically, the Radeon HD 5870 should perform quite a bit faster than the GeForce GTX 965M in general. (explain)

Radeon HD 5870 153600 MB/sec
GeForce GTX 965M 64000 MB/sec
Difference: 89600 (140%)

Texel Rate

The Radeon HD 5870 should be a little bit (more or less 13%) faster with regards to AF than the GeForce GTX 965M. (explain)

Radeon HD 5870 68000 Mtexels/sec
GeForce GTX 965M 60416 Mtexels/sec
Difference: 7584 (13%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 965M is superior to the Radeon HD 5870, not by a very large margin though. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 5870 27200 Mpixels/sec
Difference: 3008 (11%)

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 965M

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 965M Radeon HD 5870
Manufacturer nVidia AMD
Year January 5 2015 September 23, 2009
Code Name GM204 Cypress XT
Memory 2048 MB 1024 MB
Core Speed 944 MHz 850 MHz
Memory Speed 4000 MHz 4800 MHz
Power (Max TDP) 60 watts 188 watts
Bandwidth 64000 MB/sec 153600 MB/sec
Texel Rate 60416 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 1024 1600(320x5)
Texture Mapping Units 64 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 128-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: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 965M

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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