Radeon VII and GeForce GT 640 OEM Rebrand - video card comparison
Radeon VII
GeForce GT 640 OEM Rebrand
Architecture
Vega (2017−2021)
Fermi 2.0 (2010−2014)
GPU code name
Vega 20
GF116
Market segment
Desktop
Desktop
Release date
February 2019
April 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 8-pin
None
Boost clock speed
1750 MHz
-
Core clock speed
1400 MHz
720 MHz
Floating-point performance
-
414.7 gflops
Manufacturing process technology
7 nm
40 nm
Number of transistors
13,230 million
1,170 million
Pipelines / CUDA cores
3840
144
Power consumption (TDP)
295 Watt
75 Watt
Texture fill rate
420.0
17.28
Memory type
HBM2
DDR3
Maximum RAM amount
16 GB
1536 MB
Memory bus width
4096 Bit
192 Bit
Memory clock speed
1000 MHz
1600 MHz
Memory bandwidth
1024 GB/s
38.4 GB/s
Display Connectors
1x HDMI, 3x DisplayPort
2x DVI, 1x mini-HDMI
HDMI
+
+
DirectX
12 (12_1)
12 (11_0)
CUDA
-
2.1
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
N/A