Radeon 660M and Arc A770 - video card comparison
Passmark - benchmark score Radeon 660M vs Arc A770
Radeon 660M
6474
Arc A770
10284
Radeon 660M
Arc A770
Architecture
RDNA 2 (2020−2022)
Alchemist
GPU code name
RDNA 2 Rembrandt
DG2-512
Market segment
Laptop
Desktop
Release date
January 2022
October 2022
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
None
1x 6-pin + 1x 8-pin
Boost clock speed
1900 MHz
2400 MHz
Core clock speed
-
2100 MHz
Manufacturing process technology
6 nm
6 nm
Number of transistors
13,100 million
21,700 million
Pipelines / CUDA cores
384
4096
Power consumption (TDP)
45 Watt
225 Watt
Texture fill rate
45.60
614.4
Memory type
System Shared
GDDR6
Maximum RAM amount
System Shared
16 GB
Memory bus width
System Shared
256 Bit
Memory clock speed
System Shared
16000 MHz
Memory bandwidth
-
512.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1, 3x DisplayPort 2.0
HDMI
-
+
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.6
Vulkan
1.2
1.3