Comparison of AMD Radeon HD - FirePro D500 Compute Engine and AMD Radeon HD

Attribute	AMD Radeon HD - FirePro D500 Compute Engine ×	AMD Radeon HD - FirePro D300 Compute Engine ×
GPU
Release year (year)	2014	2014
GPU brand	AMD	AMD
GPU name	Tahiti	Pitcairn
Clock speed (MHz)	725	850
Is dual GPU	-	-
Model	AMD Radeon HD - FirePro D500 Compute Engine	AMD Radeon HD - FirePro D300 Compute Engine
Memory
Memory (MB)	3,072	2,048
Memory bandwidth (GB/s)	243.8	162.6
Memory bus (bit)	384	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,270	1,270
Effective memory clock speed (MHz)	5,080	5,080
Noise and power
TDP (W)	274	150
Raw performance
Pixel rate (GPixel/s)	23.2	27.2
Render output processors	32	32
Texture mapping units	96	80
Shading units	1,536	1,280
Floating-point performance (GFLOPS)	2,227	2,176
Compute units	24	20
Texture rate (GTexel/s)	69.6	68
Benchmarks
Particle simulation (mInteraction/s)	423.04	307
T-Rex (Compubench 1.5) (frames/s)	4.57	1
Video composition (frames/s)	70.94	70.69
Face detection (mPixels/s)	47.2	48.05
T-Rex (GFXBench 3.0)	3349.52	3351.76
Manhattan (GFXBench 3.0)	3632.24	3712.58
Bitcoin mining (mHash/s)	259.37	242.18
Ocean surface simulation (frames/s)	1045.53	1192.55