GeForce GTX 1080 11Gbps and Radeon R9 255 OEM - video card comparison
GeForce GTX 1080 11Gbps
Radeon R9 255 OEM
Architecture
Pascal (2016−2021)
GCN 1.0 (2012−2020)
GPU code name
GP104
Cape Verde
Market segment
Desktop
Desktop
Release date
April 2017
December 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
1x 6-pin
Boost clock speed
1733 MHz
930 MHz
Core clock speed
1607 MHz
900 MHz
Floating-point performance
8,873 gflops
952.3 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
1,500 million
Pipelines / CUDA cores
2560
512
Power consumption (TDP)
180 Watt
65 Watt
Texture fill rate
277.3
29.76
Memory type
GDDR5X
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
11008 MHz
4600 MHz
Memory bandwidth
352.3 GB/s
73.6 GB/s
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
No outputs
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