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GeForce GTX 860M vs Radeon HD 5670

Intro

The GeForce GTX 860M uses a 28 nm design. nVidia has set the core speed at 797 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this model. It features 1152 SPUs as well as 96 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5670, which comes with a core clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M 45 Watts
Radeon HD 5670 61 Watts
Difference: 16 Watts (36%)

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should perform the same. (explain)

Texel Rate

The GeForce GTX 860M is quite a bit (approximately 394%) faster with regards to AF than the Radeon HD 5670. (explain)

GeForce GTX 860M 76512 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 61012 (394%)

Pixel Rate

The GeForce GTX 860M should be much (approximately 106%) faster with regards to anti-aliasing than the Radeon HD 5670, and should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 860M 12752 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 6552 (106%)

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 860M

Amazon.com

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Radeon HD 5670

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 860M Radeon HD 5670
Manufacturer nVidia AMD
Year March 12 2014 January 14, 2010
Code Name GM107 Redwood XT
Memory 4096 MB 1024 MB
Core Speed 797 MHz 775 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 45 watts 61 watts
Bandwidth 64000 MB/sec 64000 MB/sec
Texel Rate 76512 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 12752 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 1152 400(80x5)
Texture Mapping Units 96 20
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 627 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 largest amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 860M

Amazon.com

Check prices at:

Radeon HD 5670

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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