GeForce GTX 1080 11Gbps and Radeon Sky 900 - video card comparison
GeForce GTX 1080 11Gbps
Radeon Sky 900
Architecture
Pascal (2016−2021)
GCN 1.0 (2012−2020)
GPU code name
GP104
Tahiti
Market segment
Desktop
Desktop
Release date
April 2017
March 2013
Bus support
-
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
2x 8-pin
Boost clock speed
1733 MHz
950 MHz
Core clock speed
1607 MHz
825 MHz
Floating-point performance
8,873 gflops
2x 3,405 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
4,313 million
Pipelines / CUDA cores
2560
3584
Power consumption (TDP)
180 Watt
300 Watt
Texture fill rate
277.3
106.4
Memory type
GDDR5X
GDDR5
Maximum RAM amount
8 GB
6 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
11008 MHz
5000 MHz
Memory bandwidth
352.3 GB/s
480 GB/s
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
1x DVI, 1x mini-DisplayPort
Dual-link DVI support
-
1
HDMI
+
-
DirectX
12 (12_1)
12 (11_1)
CUDA
6.1
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.2.131