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GeForce GTX 880M vs Radeon R9 M365X

Intro

The GeForce GTX 880M features a GPU core clock speed of 954 MHz, and the 4096 MB of GDDR5 RAM runs at 1000 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon R9 M365X, which makes use of a 28 nm design. AMD has set the core frequency at 925 MHz. The GDDR5 memory runs at a speed of 1125 MHz on this specific card. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 880M should in theory be a lot better than the Radeon R9 M365X in general. (explain)

GeForce GTX 880M 128000 MB/sec
Radeon R9 M365X 72000 MB/sec
Difference: 56000 (78%)

Texel Rate

The GeForce GTX 880M will be a lot (approximately 230%) better at AF than the Radeon R9 M365X. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon R9 M365X 37000 Mtexels/sec
Difference: 85112 (230%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 880M is the winner, by far. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon R9 M365X 14800 Mpixels/sec
Difference: 15728 (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 880M

Amazon.com

Check prices at:

Radeon R9 M365X

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.

Specifications

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Model GeForce GTX 880M Radeon R9 M365X
Manufacturer nVidia AMD
Year March 12 2014 2015
Code Name GK104 Cape Verde
Memory 4096 MB 4096 MB
Core Speed 954 MHz 925 MHz
Memory Speed 4000 MHz 4500 MHz
Power (Max TDP) 130 watts (Unknown) watts
Bandwidth 128000 MB/sec 72000 MB/sec
Texel Rate 122112 Mtexels/sec 37000 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 14800 Mpixels/sec
Unified Shaders 1536 640
Texture Mapping Units 128 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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

Display Prices

Hide Prices

GeForce GTX 880M

Amazon.com

Check prices at:

Radeon R9 M365X

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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