Radeon R9 285 and GeForce GTX 1080 11Gbps - video card comparison
Radeon R9 285
GeForce GTX 1080 11Gbps
Architecture
GCN 3.0 (2014−2017)
Pascal (2016−2021)
GPU code name
Tonga
GP104
Market segment
Desktop
Desktop
Release date
September 2014
April 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
1x 8-pin
Boost clock speed
-
1733 MHz
Core clock speed
918 MHz
1607 MHz
Floating-point performance
3,290 gflops
8,873 gflops
Manufacturing process technology
28 nm
16 nm
Number of transistors
5,000 million
7,200 million
Pipelines / CUDA cores
1792
2560
Power consumption (TDP)
190 Watt
180 Watt
Texture fill rate
102.8
277.3
Memory type
GDDR5
GDDR5X
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5.5 GB/s
11008 MHz
Memory bandwidth
176.0 GB/s
352.3 GB/s
Display Connectors
2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
1x DVI, 1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12 (12_1)
CUDA
-
6.1
OpenCL
2.1
1.2
OpenGL
4.6
4.6
Shader Model
6.5
6.4
Vulkan
1.2.170
1.2.131