Comparison of Radeon HD 6990 and Radeon HD 5970

Attribute	Radeon HD 6990 ×	Radeon HD 5970 ×
GPU
Release year (year)	2011	2009
Reference card	AMD Radeon HD 6990 830 MHz 4 GB	-
GPU brand	AMD	ATI
GPU name	Antilles	Hemlock
Market	Desktop	Desktop
Clock speed (MHz)	830	725
Is dual GPU	+	+
Model	Radeon HD 6990	Radeon HD 5970
Memory
Memory (MB)	4,096	2,048
Memory bandwidth (GB/s)	320	256
Memory bus (bit)	512	512
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,250	1,000
Effective memory clock speed (MHz)	5,000	4,000
Noise and power
TDP (W)	375	294
Load power consumption (W)	545	439
Idle power consumption (W)	140	138
Load noise level (dB)	66	58.9
Idle noise level (dB)	45.5	42.8
Raw performance
Pixel rate (GPixel/s)	53.12	46.4
Render output processors	64	64
Texture mapping units	192	160
Shading units	3,072	3,200
Floating-point performance (GFLOPS)	5,100	4,640
Compute units	48	40
Texture rate (GTexel/s)	159.4	116
Benchmarks
PassMark	-	2,599
Battleforge (fps)	-	93.3
Hawx (fps)	-	155
Cloud Gate Factor	21.43	19.66
Face detection (mPixels/s)	17.28	-
T-Rex (GFXBench 3.0)	3356.28	3213.45
Manhattan (GFXBench 3.0)	3713.7	3454.16
Bitcoin mining (mHash/s)	265.3	-
Sky Diver Factor	340.31	229.17
Fire Strike Factor	45.35	33.32
Ocean surface simulation (frames/s)	840.45	-