Radeon 660M and Radeon 740M - video card comparison
Passmark - benchmark score Radeon 660M vs Radeon 740M
Radeon 660M
6474
Radeon 740M
3585
Radeon 660M
Radeon 740M
Architecture
RDNA 2 (2020−2022)
RDNA 3
GPU code name
RDNA 2 Rembrandt
Phoenix
Market segment
Laptop
Laptop
Release date
January 2022
May 2023
Interface
PCIe 4.0 x8
PCIe 4.0 x8
Supplementary power connectors
None
None
Boost clock speed
1900 MHz
2500 MHz
Core clock speed
-
1500 MHz
Manufacturing process technology
6 nm
4 nm
Number of transistors
13,100 million
25,390 million
Pipelines / CUDA cores
384
256
Power consumption (TDP)
45 Watt
30 Watt (30 - 15 Watt TGP)
Texture fill rate
45.60
40.00
Memory type
System Shared
System Shared
Maximum RAM amount
System Shared
System Shared
Memory bus width
System Shared
System Shared
Memory clock speed
System Shared
System Shared
Shared memory
-
+
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3