Comparison of Radeon R9 M290X and Radeon RX 580

Attribute	Radeon RX 580 ×	Radeon R9 M290X ×
GPU
Release year (year)	2017	2014
GPU brand	AMD	AMD
GPU name	Polaris 20	Neptune
Market	-	Laptop
Clock speed (MHz)	1,257	850
Turbo clock speed (MHz)	1,340	900
Is dual GPU	-	-
Model	Radeon RX 580	Radeon R9 M290X
Memory
Memory (MB)	8,192	4,096
Memory bandwidth (GB/s)	256	153.6
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	2,000	1,200
Effective memory clock speed (MHz)	8,000	4,800
Noise and power
TDP (W)	185	100
Raw performance
Pixel rate (GPixel/s)	42.88	28.8
Render output processors	32	32
Texture mapping units	144	80
Shading units	2,304	1,280
Floating-point performance (GFLOPS)	6,175	2,304
Compute units	36	20
Texture rate (GTexel/s)	193	72
Benchmarks
Bioshock Infinite	-	46.8
Cloud Gate Factor	22.5	-
Battlefield 4	-	36.35
Face detection (mPixels/s)	116.37	54.52
T-Rex (GFXBench 3.0)	3350.64	3324.52
Manhattan (GFXBench 3.0)	3709.21	2047.22
Bitcoin mining (mHash/s)	607.72	258.05
Sky Diver Factor	441.03	-
Thief	-	34
Fire Strike Factor	75.63	-
Ocean surface simulation (frames/s)	2007.61	1134.46