GeForce GTX 1080 Mobile and Radeon HD 6990M - video card comparison
GeForce GTX 1080 Mobile
Radeon HD 6990M
Architecture
Pascal (2016−2021)
Terascale 2 (2009−2015)
GPU code name
N17E-G3
Blackcomb XTX
Market segment
Laptop
Laptop
Release date
August 2016
July 2011
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
1733 MHz
-
Core clock speed
1607 MHz
715 MHz
CUDA cores
2560
-
Floating-point performance
9,068 gflops
1,601.6 gflops
Manufacturing process technology
16 nm
40 nm
Number of transistors
7,200 million
1,700 million
Pipelines / CUDA cores
2560
1120
Power consumption (TDP)
150 Watt
100 Watt
Maximum GPU temperature
94 °C
-
Texture fill rate
283.4
40.04
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
10 GB/s
900 MHz
Memory bandwidth
320 GB/s
115.2 GB/s
Shared memory
-
-
Display Connectors
DP 1.42, HDMI 2.0b, DL-DVI
No outputs
Multi monitor support
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.5
4.4
Shader Model
6.4
5.0
Vulkan
1.2.131
N/A
Ansel
+
-
GPU Boost
3.0
-
VR Ready
+
-