GeForce GTX 1080 11Gbps and Radeon HD 3450 X2 - video card comparison
GeForce GTX 1080 11Gbps
Radeon HD 3450 X2
Architecture
Pascal (2016−2021)
TeraScale (2005−2013)
GPU code name
GP104
RV620
Market segment
Desktop
Desktop
Release date
April 2017
December 2007
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1733 MHz
-
Core clock speed
1607 MHz
600 MHz
Floating-point performance
8,873 gflops
2x 48 gflops
Manufacturing process technology
16 nm
55 nm
Number of transistors
7,200 million
181 million
Pipelines / CUDA cores
2560
40
Power consumption (TDP)
180 Watt
50 Watt
Texture fill rate
277.3
2.400
Memory type
GDDR5X
DDR2
Maximum RAM amount
8 GB
512 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
11008 MHz
1000 MHz
Memory bandwidth
352.3 GB/s
8 GB/s
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
2x DMS-59
HDMI
+
-
DirectX
12 (12_1)
10.1 (10_1)
CUDA
6.1
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
6.4
4.1
Vulkan
1.2.131
N/A