Radeon Pro 555X and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon Pro 555X vs Radeon RX 6400
Radeon Pro 555X
3332
Radeon RX 6400
7778
Radeon Pro 555X
Radeon RX 6400
Architecture
Polaris (2016−2019)
RDNA 2.0 (2020−2022)
GPU code name
Polaris 21
Navi 24
Market segment
Mobile workstation
Desktop
Release date
June 2017
January 2022
Interface
PCIe 3.0 x8
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
-
2321 MHz
Core clock speed
855 MHz
-
Manufacturing process technology
14 nm
6 nm
Number of transistors
3,000 million
5,400 million
Pipelines / CUDA cores
768
768
Power consumption (TDP)
-
53 Watt
Texture fill rate
43.54
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
4 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
5080 MHz
16 GB/s
Memory bandwidth
81.6 GB/s
128.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.0
2.2
OpenGL
4.6
4.6
Shader Model
6.4
6.6
Vulkan
1.2.131
1.3
FreeSync
+
-