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GeForce GTX 880M vs Radeon R9 380X

Intro

The GeForce GTX 880M makes use of a 28 nm design. nVidia has clocked the core frequency at 954 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this particular model. It features 1536 SPUs along with 128 TAUs and 32 ROPs.

Compare those specifications to the Radeon R9 380X, which uses a 28 nm design. AMD has set the core frequency at 970 MHz. The GDDR5 memory works at a frequency of 1425 MHz on this specific model. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 380X 9519 points
GeForce GTX 880M 6360 points
Difference: 3159 (50%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M 130 Watts
Radeon R9 380X 190 Watts
Difference: 60 Watts (46%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380X should in theory be much better than the GeForce GTX 880M in general. (explain)

Radeon R9 380X 182400 MB/sec
GeForce GTX 880M 128000 MB/sec
Difference: 54400 (43%)

Texel Rate

The Radeon R9 380X will be a small bit (more or less 2%) faster with regards to texture filtering than the GeForce GTX 880M. (explain)

Radeon R9 380X 124160 Mtexels/sec
GeForce GTX 880M 122112 Mtexels/sec
Difference: 2048 (2%)

Pixel Rate

The Radeon R9 380X should be a bit (approximately 2%) more effective at full screen anti-aliasing than the GeForce GTX 880M, and also will be able to handle higher resolutions while still performing well. (explain)

Radeon R9 380X 31040 Mpixels/sec
GeForce GTX 880M 30528 Mpixels/sec
Difference: 512 (2%)

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 R9 380X

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 R9 380X
Manufacturer nVidia AMD
Year March 12 2014 November 2015
Code Name GK104 Tonga XT
Memory 4096 MB 4096 MB
Core Speed 954 MHz 970 MHz
Memory Speed 4000 MHz 5700 MHz
Power (Max TDP) 130 watts 190 watts
Bandwidth 128000 MB/sec 182400 MB/sec
Texel Rate 122112 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 5000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the interface 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 memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount 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 the graphics card could possibly write 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 speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 880M

Amazon.com

Check prices at:

Radeon R9 380X

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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