Comparison of Radeon HD 6950 and AMD Radeon HD

Attribute	Radeon HD 6950 ×	AMD Radeon HD - FirePro D300 Compute Engine ×
GPU
Release year (year)	2011	2014
Reference card	AMD Radeon HD 6950 800 MHz 2 GB	-
GPU brand	AMD	AMD
GPU name	Cayman PRO	Pitcairn
Market	Desktop	-
Clock speed (MHz)	880	850
Is dual GPU	-	-
Model	Radeon HD 6950	AMD Radeon HD - FirePro D300 Compute Engine
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	166.4	162.6
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,300	1,270
Effective memory clock speed (MHz)	5,200	5,080
Noise and power
TDP (W)	200	150
Load power consumption (W)	326	-
Idle power consumption (W)	117	-
Load noise level (dB)	48.2	-
Idle noise level (dB)	42.7	-
Raw performance
Pixel rate (GPixel/s)	28.16	27.2
Render output processors	32	32
Texture mapping units	88	80
Shading units	1,408	1,280
Floating-point performance (GFLOPS)	2,478	2,176
Compute units	22	20
Texture rate (GTexel/s)	77.44	68
Benchmarks
Metro: Last Light	7.5	-
Battlefield 3	30	-
Particle simulation (mInteraction/s)	-	307
T-Rex (Compubench 1.5) (frames/s)	-	1
Video composition (frames/s)	-	70.69
Face detection (mPixels/s)	17.01	48.05
T-Rex (GFXBench 3.0)	3358.26	3351.76
Manhattan (GFXBench 3.0)	3714.44	3712.58
Bitcoin mining (mHash/s)	251.55	242.18
Sky Diver Factor	242.26	-
Fire Strike Factor	35.2	-
Ocean surface simulation (frames/s)	-	1192.55