Radeon RX 640 and CMP 170HX - video card comparison
Radeon RX 640
CMP 170HX
Architecture
Polaris (2016−2019)
Ampere (2020−2022)
GPU code name
Polaris 12
GA100
Market segment
Laptop
Desktop
Release date
August 2019
September 2021
Interface
PCIe 3.0 x8
PCIe 4.0 x4
Supplementary power connectors
None
2x 8-pin
Boost clock speed
1218 MHz
1410 MHz
Core clock speed
1218 MHz
-
Manufacturing process technology
14 nm
7 nm
Number of transistors
2,200 million
54,200 million
Pipelines / CUDA cores
640
4480
Power consumption (TDP)
50 Watt
250 Watt
Texture fill rate
38.98
394.8
Memory type
GDDR5
HBM2e
Maximum RAM amount
4 GB
16 GB
Memory bus width
64 Bit
4096 Bit
Memory clock speed
6000 MHz
2.9 GB/s
Memory bandwidth
112.0 GB/s
1,493 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
N/A
CUDA
-
8.0
OpenCL
2.0
3.0
OpenGL
4.6
N/A
Shader Model
6.4
N/A
Vulkan
1.2.131
N/A
FreeSync
+
-