Comparison of GeForce GTX 980 Ti and Radeon HD 7990

Attribute	Radeon HD 7990 ×	GeForce GTX 980 Ti ×
GPU
Release year (year)	2013	2015
Reference card	AMD Radeon HD 7990 950 MHz 6 GB	-
GPU brand	AMD	Nvidia
GPU name	Malta	GM200
Market	Desktop	Desktop
Clock speed (MHz)	950	1,000
Turbo clock speed (MHz)	1,000	1,076
Is dual GPU	+	-
Model	Radeon HD 7990	GeForce GTX 980 Ti
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	1,753
Effective memory clock speed (MHz)	6,000	7,012
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	96
Render output processors	64	96
Texture mapping units	256	176
Shading units	4,096	2,816
Floating-point performance (GFLOPS)	8,192	5,632
Compute units	64	-
Texture rate (GTexel/s)	256	176
Benchmarks
Unigine: Heaven 4.0	-	72.5
Cloud Gate Factor	23	-
Battlefield 4	-	148
Face detection (mPixels/s)	90.43	145.53
T-Rex (GFXBench 3.0)	3356.38	1141.88
Manhattan (GFXBench 3.0)	3716.14	3718.52
Bitcoin mining (mHash/s)	458.53	537.83
Sky Diver Factor	393.8	475.41
Fire Strike Factor	75.52	85.93
Ocean surface simulation (frames/s)	1833.02	-