Radeon RX 640 and Radeon 740M - video card comparison
Passmark - benchmark score Radeon RX 640 vs Radeon 740M
Radeon RX 640
2020
Radeon 740M
3579
Radeon RX 640
Radeon 740M
Architecture
Polaris (2016−2019)
RDNA 3
GPU code name
Polaris 12
Phoenix
Market segment
Laptop
Laptop
Release date
August 2019
May 2023
Interface
PCIe 3.0 x8
PCIe 4.0 x8
Supplementary power connectors
None
None
Boost clock speed
1218 MHz
2500 MHz
Core clock speed
1218 MHz
1500 MHz
Manufacturing process technology
14 nm
4 nm
Number of transistors
2,200 million
25,390 million
Pipelines / CUDA cores
640
256
Power consumption (TDP)
50 Watt
30 Watt (30 - 15 Watt TGP)
Texture fill rate
38.98
40.00
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 Ultimate (12_2)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.7
Vulkan
1.2.131
1.3
FreeSync
+
-