Comparison of Radeon HD 6990 and Radeon R9 290

Attribute	Radeon HD 6990 ×	Radeon R9 290 ×
GPU
Release year (year)	2011	2013
Reference card	AMD Radeon HD 6990 830 MHz 4 GB	-
GPU brand	AMD	AMD
GPU name	Antilles	Hawaii
Market	Desktop	Desktop
Clock speed (MHz)	830	947
Turbo clock speed (MHz)	-	947
Is dual GPU	+	-
Model	Radeon HD 6990	Radeon R9 290
Memory
Memory (MB)	4,096	4,096
Memory bandwidth (GB/s)	320	320
Memory bus (bit)	512	512
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,250	1,125
Effective memory clock speed (MHz)	5,000	5,000
Noise and power
TDP (W)	375	300
Load power consumption (W)	545	381
Idle power consumption (W)	140	87
Load noise level (dB)	66	57.2
Idle noise level (dB)	45.5	39.5
Raw performance
Pixel rate (GPixel/s)	53.12	60.6
Render output processors	64	64
Texture mapping units	192	160
Shading units	3,072	2,560
Floating-point performance (GFLOPS)	5,100	4,800
Compute units	48	40
Texture rate (GTexel/s)	159.4	152
Benchmarks
Crysis 3	-	51
Cloud Gate Factor	21.43	-
Face detection (mPixels/s)	17.28	108.61
T-Rex (GFXBench 3.0)	3356.28	3355.58
Manhattan (GFXBench 3.0)	3713.7	3713.44
Bitcoin mining (mHash/s)	265.3	545.44
Sky Diver Factor	340.31	410.95
Fire Strike Factor	45.35	71.97
Ocean surface simulation (frames/s)	840.45	2474.12