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Differences What are the advantages of each

Front view of Radeon R9 M390X

Reasons to consider the
AMD Radeon R9 M390X

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Significantly more memory 4,096 MB vs 1,024 MB 4x more memory
Better floating-point performance 2,961.4 GFLOPS vs 1,932.7 GFLOPS Around 55% better floating-point performance
More shading units 2,048 vs 1,344 704 more shading units
Better face detection score 44.39 mPixels/s vs 22.66 mPixels/s More than 95% better face detection score
More texture mapping units 128 vs 112 16 more texture mapping units
Front view of GeForce GTX 675MX Mac

Reasons to consider the
Nvidia GeForce GTX 675MX Mac

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GPUBoss is not aware of any important advantages of the Nvidia GeForce GTX 675MX Mac vs the AMD Radeon R9 M390X.

Benchmarks Real world tests of Radeon R9 M390X vs GeForce GTX 675MX Mac

Face detection Data courtesy CompuBench

Radeon R9 M390X
44.39 mPixels/s
GeForce GTX 675MX Mac
22.66 mPixels/s

Ocean surface simulation Data courtesy CompuBench

Radeon R9 M390X
881.96 frames/s
GeForce GTX 675MX Mac
-1 frames/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

Radeon R9 M390X
4.03 frames/s
GeForce GTX 675MX Mac
2.1 frames/s

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