Radeon RX 6800 and Radeon 660M - video card comparison
Passmark - benchmark score Radeon RX 6800 vs Radeon 660M
Radeon RX 6800
22945
Radeon 660M
6474
Radeon RX 6800
Radeon 660M
Architecture
Navi / RDNA2 (2020−2022)
RDNA 2 (2020−2022)
GPU code name
Navi 21
RDNA 2 Rembrandt
Market segment
Desktop
Laptop
Release date
November 2020
January 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 8-pin
None
Boost clock speed
2105 MHz
1900 MHz
Core clock speed
1815 MHz
-
Manufacturing process technology
7 nm
6 nm
Number of transistors
26,800 million
13,100 million
Pipelines / CUDA cores
3840
384
Power consumption (TDP)
250 Watt
45 Watt
Texture fill rate
505.2
45.60
Memory type
GDDR6
System Shared
Maximum RAM amount
16 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
16000 MHz
System Shared
Memory bandwidth
512.0 GB/s
-
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort, 1x USB Type-C
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2
1.2