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GeForce 820M vs Radeon R7 M360

Intro

The GeForce 820M comes with core clock speeds of 719 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 96 SPUs along with 16 TAUs and 4 Rasterization Operator Units.

Compare those specifications to the Radeon R7 M360, which comes with a core clock speed of 1125 MHz and a DDR3 memory frequency of 1000 MHz. It also makes use of a 64-bit bus, and uses a 28 nm design. It is comprised of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

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

Texel Rate

The Radeon R7 M360 is quite a bit (more or less 135%) faster with regards to anisotropic filtering than the GeForce 820M. (explain)

Radeon R7 M360		27000 Mtexels/sec
GeForce 820M		11504 Mtexels/sec
	Difference: 15496 (135%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R7 M360 is the winner, by far. (explain)

Radeon R7 M360		9000 Mpixels/sec
GeForce 820M		2876 Mpixels/sec
	Difference: 6124 (213%)

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 820M

Amazon.com

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Radeon R7 M360

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 820M	Radeon R7 M360
Manufacturer	nVidia	AMD
Year	February 2014	2015
Code Name	GF117	Oland
Memory	2048 MB	2048 MB
Core Speed	719 MHz	1125 MHz
Memory Speed	2000 MHz	2000 MHz
Power (Max TDP)	15 watts	(Unknown) watts
Bandwidth	16000 MB/sec	16000 MB/sec
Texel Rate	11504 Mtexels/sec	27000 Mtexels/sec
Pixel Rate	2876 Mpixels/sec	9000 Mpixels/sec
Unified Shaders	96	384
Texture Mapping Units	16	24
Render Output Units	4	8
Bus Type	DDR3	DDR3
Bus Width	64-bit	64-bit
Fab Process	28 nm	28 nm
Transistors	(Unknown) million	(Unknown) million
Bus	PCIe 2.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 12	DirectX 12
OpenGL Version	OpenGL 4.5	OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

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