Comparison of Radeon R9 290 and Radeon R9 280

Attribute	Radeon R9 290 ×	Radeon R9 280 ×
GPU
Release year (year)	2013	2014
GPU brand	AMD	AMD
GPU name	Hawaii	Tahiti
Market	Desktop	Desktop
Clock speed (MHz)	947	827
Turbo clock speed (MHz)	947	933
Is dual GPU	-	-
Model	Radeon R9 290	Radeon R9 280
Memory
Memory (MB)	4,096	3,072
Memory bandwidth (GB/s)	320	240
Memory bus (bit)	512	384
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,125	1,250
Effective memory clock speed (MHz)	5,000	5,000
Noise and power
TDP (W)	300	200
Load power consumption (W)	381	-
Idle power consumption (W)	87	-
Load noise level (dB)	57.2	-
Idle noise level (dB)	39.5	-
Raw performance
Pixel rate (GPixel/s)	60.6	29.86
Render output processors	64	32
Texture mapping units	160	112
Shading units	2,560	1,792
Floating-point performance (GFLOPS)	4,800	3,344
Compute units	40	28
Texture rate (GTexel/s)	152	104.5
Benchmarks
Crysis 3	51	-
Dirt3	-	92
Face detection (mPixels/s)	108.61	80.47
T-Rex (GFXBench 3.0)	3355.58	3356.46
Manhattan (GFXBench 3.0)	3713.44	3713.26
Bitcoin mining (mHash/s)	545.44	365.38
Sky Diver Factor	410.95	336.33
Fire Strike Factor	71.97	55.14
Ocean surface simulation (frames/s)	2474.12	1687.03