Radeon RX M540X vs Radeon Pro 455

Radeon RX M540X
Radeon Pro 455
512 Shaders
2GB GDDR5
1219MHz
768 Shaders
2GB GDDR5
855MHz
FP32
1.25 TFLOPS
FP32
1.31 TFLOPS
FP16
1.25 TFLOPS
FP16
1.31 TFLOPS
Form Factor
Soldered
-
Form Factor
Soldered
-
TDP
50W
TDP
35W
-
-
-
-
-
-
-
-
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL - N/A
0%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal - N/A
0%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal - N/A
0%
Manufacturer
AMD
Manufacturer
Apple
Chip Designer
AMD
Chip Designer
AMD
Architecture
GCN 4
Architecture
GCN 4
Family
Radeon RX 500
Family
Radeon Pro
Codename
Lexa
Polaris 23
Variant
Polaris 23 XLM
Codename
Baffin
Polaris 11
Variant
Polaris 11 XLA
Market Segment
Laptop
Market Segment
Laptop
Release Date
4/11/2018
Release Date
10/30/2016
Foundry
GlobalFoundries
-
Foundry
GlobalFoundries
-
Fabrication Node
14LPP
-
Fabrication Node
14LPP
-
Die Size
103 mm²
-
Die Size
123 mm²
-
Transistor Count
2.2 Billion
-
Transistor Count
3 Billion
-
Transistor Density
21.36M/mm²
-
Transistor Density
24.39M/mm²
-
Form
Soldered
Form
Soldered
Shading Units
512 Shaders
-
Shading Units
768 Shaders
-
Texture Mapping Units
32 TMUs
Texture Mapping Units
48 TMUs
Render Output Units
16 ROPs
Render Output Units
16 ROPs
-
-
-
-
-
-
-
-
-
-
-
-
Compute Units
8 CUs
Compute Units
12 CUs
-
-
-
-
-
-
-
-
-
-
1124MHz Base
1219MHz
-
-
-
855MHz
-
-
-
-
-
-
-
-
-
-
FP16
1.25 TFLOPS
-
FP16
1.31 TFLOPS
-
-
-
-
-
-
-
FP32
1.25 TFLOPS
FP32
1.31 TFLOPS
-
-
-
-
FP64
0.08 TFLOPS
-
FP64
0.08 TFLOPS
-
-
-
-
-
-
-
-
-
-
-
Pixel Fillrate
19.504 GPixel/s
Pixel Fillrate
13.68 GPixel/s
-
-
-
-
Texture Fillrate
39.008 GTexel/s
Texture Fillrate
41.04 GTexel/s
-
-
-
-
L1
-
-
16KB/CU
-
L1
-
-
16KB/CU
-
L2
512KB Shared
L2
1MB Shared
-
-
-
-
-
-
2GB
GDDR5
-
2GB
GDDR5
-
Bus Width
128Bit
Bus Width
128Bit
Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
96GB/s
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
50W
TDP
35W
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No Ports
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No Ports
Max Resolution
5120x2880
Max Resolution
5120x2880
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
FreeSync
-
Variable Refresh Rate
-
FreeSync
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
3
Multi Monitor Support
3
Content Protection
HDCP 2.2
Content Protection
HDCP 2.2
Model
VCE 3.4
Model
VCE 3.4
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
Model
UVD 6.3
Model
UVD 6.3
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
Direct X
12
Direct 3D
12_0
Direct X
12
Direct 3D
12_0
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
Shader Model
6.7
-
-
GFX
8
-
-
-
-
Shader Model
6.7
-
-
GFX
8
-
-
-
-
Not a Card
-
-
-
Not a Card
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PCIe Version
3.0
PCIe Lanes
8
-
-
PCIe Version
3.0
PCIe Lanes
8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Change Results