Comparison of GeForce GTX TITAN BLACK and Radeon HD 7990

Attribute	Radeon HD 7990 ×	GeForce GTX TITAN BLACK ×
GPU
Release year (year)	2013	2014
Reference card	AMD Radeon HD 7990 950 MHz 6 GB	-
GPU brand	AMD	Nvidia
GPU name	Malta	GK110B
Market	Desktop	Desktop
Clock speed (MHz)	950	889
Turbo clock speed (MHz)	1,000	980
Is dual GPU	+	-
Model	Radeon HD 7990	GeForce GTX TITAN BLACK
Memory
Memory (MB)	6,144	6,144
Memory bandwidth (GB/s)	576	-
Memory bus (bit)	768	384
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,500	1,750
Effective memory clock speed (MHz)	6,000	7,000
Noise and power
TDP (W)	375	250
Load power consumption (W)	573	-
Idle power consumption (W)	135	-
Load noise level (dB)	60	-
Idle noise level (dB)	43	-
Raw performance
Pixel rate (GPixel/s)	64	53.3
Render output processors	64	48
Texture mapping units	256	240
Shading units	4,096	2,880
Floating-point performance (GFLOPS)	8,192	5,121
Compute units	64	-
Texture rate (GTexel/s)	256	213.4
Benchmarks
Cloud Gate Factor	23	24.37
Face detection (mPixels/s)	90.43	82.61
T-Rex (GFXBench 3.0)	3356.38	3355.5
Manhattan (GFXBench 3.0)	3716.14	3714.56
Bitcoin mining (mHash/s)	458.53	293.83
Sky Diver Factor	393.8	452.58
Fire Strike Factor	75.52	77.05
Ocean surface simulation (frames/s)	1833.02	1831.92