GeForce GT 645 OEM and Radeon E9171 MCM - video card comparison
GeForce GT 645 OEM
Radeon E9171 MCM
Architecture
Fermi 2.0 (2010−2014)
GCN 4.0 (2016−2020)
GPU code name
GF114
Lexa
Market segment
Desktop
Desktop
Release date
April 2012
October 2017
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
-
1219 MHz
Core clock speed
776 MHz
1124 MHz
Floating-point performance
894.0 gflops
1,248 gflops
Manufacturing process technology
40 nm
14 nm
Number of transistors
1,950 million
2,200 million
Pipelines / CUDA cores
288
512
Power consumption (TDP)
102 Watt
40 Watt
Texture fill rate
37.25
39.01
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
4 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
3828 MHz
6000 MHz
Memory bandwidth
91.87 GB/s
96 GB/s
Display Connectors
2x DVI, 1x mini-HDMI
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (12_0)
CUDA
2.1
-
OpenCL
1.1
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
N/A
1.2.131