GeForce 945A and Radeon HD 5670 640SP Edition - video card comparison
GeForce 945A
Radeon HD 5670 640SP Edition
Architecture
Maxwell (2014−2018)
TeraScale 2 (2009−2015)
GPU code name
GM108
Juniper
Market segment
Desktop
Desktop
Release date
March 2015
July 2010
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
-
None
Boost clock speed
1189 MHz
-
Core clock speed
1072 MHz
750 MHz
Floating-point performance
903.2 gflops
960.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
-
1,040 million
Pipelines / CUDA cores
384
640
Power consumption (TDP)
33 Watt
64 Watt
Texture fill rate
28.54
24.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5012 MHz
4000 MHz
Memory bandwidth
40.1 GB/s
64 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (11_0)
11.2 (11_0)
CUDA
5.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A