Radeon RX 640 and Radeon Graphics 448SP Mobile - video card comparison
Radeon RX 640
Radeon Graphics 448SP Mobile
Architecture
Polaris (2016−2019)
GCN 5.1 (2018−2021)
GPU code name
Polaris 12
Barcelo
Market segment
Laptop
Laptop
Release date
August 2019
January 2022
Interface
PCIe 3.0 x8
IGP
Supplementary power connectors
None
-
Boost clock speed
1218 MHz
1800 MHz
Core clock speed
1218 MHz
-
Manufacturing process technology
14 nm
7 nm
Number of transistors
2,200 million
10,700 million
Pipelines / CUDA cores
640
448
Power consumption (TDP)
50 Watt
45 Watt
Texture fill rate
38.98
50.40
Memory type
GDDR5
System Shared
Maximum RAM amount
4 GB
System Shared
Memory bus width
64 Bit
System Shared
Memory clock speed
6000 MHz
System Shared
Memory bandwidth
112.0 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
Portable Device Dependent
HDMI
+
-
DirectX
12 (12_0)
12 (12_1)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.7 (6.4)
Vulkan
1.2.131
1.3
FreeSync
+
-