Comparison of Radeon HD 7970M and AMD Radeon HD

Attribute	AMD Radeon HD - FirePro D300 Compute Engine ×	Radeon HD 7970M ×
GPU
Release year (year)	2014	2012
GPU brand	AMD	AMD
GPU name	Pitcairn	Wimbledon
Market	-	Laptop
Clock speed (MHz)	850	850
Is dual GPU	-	-
Model	AMD Radeon HD - FirePro D300 Compute Engine	Radeon HD 7970M
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	162.6	153.6
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,270	1,200
Effective memory clock speed (MHz)	5,080	4,800
Noise and power
TDP (W)	150	100
Raw performance
Pixel rate (GPixel/s)	27.2	27.2
Render output processors	32	32
Texture mapping units	80	80
Shading units	1,280	1,280
Floating-point performance (GFLOPS)	2,176	2,176
Compute units	20	20
Texture rate (GTexel/s)	68	68
Benchmarks
Particle simulation (mInteraction/s)	307	-
T-Rex (Compubench 1.5) (frames/s)	1	-
Video composition (frames/s)	70.69	-
Battlefield 4	-	35.3
Face detection (mPixels/s)	48.05	51.64
T-Rex (GFXBench 3.0)	3351.76	3339.58
Manhattan (GFXBench 3.0)	3712.58	3713.82
Bitcoin mining (mHash/s)	242.18	257.3
Sky Diver Factor	-	271.71
Thief	-	33.5
Fire Strike Factor	-	46.48
Ocean surface simulation (frames/s)	1192.55	-