AMD Instinct MI355X vs AMD Radeon Instinct MI50

AMD Instinct MI355X
AMD Radeon Instinct MI50
16384 Shaders
288GB HBM3e
2400MHz
3840 Shaders
16GB HBM2
1725MHz
Peak AI Performance
20.13 PFLOPS
FP4 Tensor Sparse
Peak AI Performance
26.5 TFLOPS
FP16
FP32
157.29 TFLOPS
FP32
13.25 TFLOPS
FP16
157.29 TFLOPS
FP16
26.5 TFLOPS
Form Factor
OAM Module
-
Form Factor
PCIe Card
2.0-Slots
TDP
1400W
TDP
300W
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-
-
-
-
Power Connectors
-
2x 8-Pin
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-
GB6 OpenCL N/A
0%
GB6 OpenCL N/A
0%
GB6 Metal N/A
0%
GB6 Metal N/A
0%
GB6 Vulkan N/A
0%
GB6 Vulkan N/A
0%
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%
Peak AI Performance
20.13 PFLOPS
FP4 Tensor Sparse
Peak AI Performance
26.5 TFLOPS
FP16
FP4
10.07 PFLOPS Tensor
20.13 PFLOPS Tensor Sparse
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-
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FP8
-
5.03 PFLOPS Tensor (FP16 Accumulate)
10.07 PFLOPS Tensor (FP16 Accumulate) Sparse
5.03 PFLOPS Tensor (FP32 Accumulate)
10.07 PFLOPS Tensor (FP32 Accumulate) Sparse
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-
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FP16
157.29 TFLOPS
2.52 PFLOPS Tensor (FP16 Accumulate)
5.03 PFLOPS Tensor (FP16 Accumulate) Sparse
2.52 PFLOPS Tensor (FP32 Accumulate)
5.03 PFLOPS Tensor (FP32 Accumulate) Sparse
FP16
26.5 TFLOPS
-
-
-
-
FP32
157.29 TFLOPS
157.29 TFLOPS Tensor
314.57 TFLOPS Tensor Sparse
FP32
13.25 TFLOPS
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-
FP64
78.64 TFLOPS
78.64 TFLOPS Tensor
FP64
6.62 TFLOPS
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BF16
-
2.52 PFLOPS Tensor
5.03 PFLOPS Tensor Sparse
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INT4
5.03 POPS Tensor
10.07 POPS Tensor Sparse
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INT8
-
5.03 POPS Tensor
10.07 POPS Tensor Sparse
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Pixel Fillrate
-
Pixel Fillrate
110.4 GPixel/s
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-
-
-
Texture Fillrate
-
Texture Fillrate
414 GTexel/s
Manufacturer
AMD
Manufacturer
AMD
Chip Designer
AMD
Chip Designer
AMD
Architecture
CDNA 4
Architecture
GCN 5
Family
Instinct
Family
Instinct
Codename
CDNA Next
-
-
-
Codename
Moonshot
Vega 20
Variant
Vega 20 XL GL
Market Segment
Server
Market Segment
Server
Release Date
6/12/2025
Release Date
11/18/2018
Foundry
TSMC
TSMC IO Die
Foundry
TSMC
-
Fabrication Node
N3P
N6 IO Die
Fabrication Node
N7
-
Die Size
8x 181 mm²
-
Die Size
331 mm²
-
Transistor Count
8x 17.4 Billion
2x 23 Billion IO Die
Transistor Count
13.2 Billion
-
Transistor Density
96.13M/mm²
-
Transistor Density
39.97M/mm²
-
Form
OAM Module
Form
PCIe Card
Shading Units
16384 Shaders
-
Shading Units
3840 Shaders
-
Texture Mapping Units
-
Texture Mapping Units
240 TMUs
Render Output Units
-
Render Output Units
64 ROPs
Tensor Cores
1024 T-Cores
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-
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-
Compute Units
256 CUs
Compute Units
60 CUs
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2400MHz
-
-
1450MHz Base
1725MHz
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-
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-
L1
-
-
16KB/CU
-
L1
-
-
16KB/CU
-
L2
16MB Shared
L2
4MB Shared
L3
256MB Shared
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-
-
-
288GB
HBM3e
ECC
16GB
HBM2
ECC
Bus Width
8192Bit
Bus Width
4096Bit
Clock
3906MHz
Transfer Rate
7.8GT/s
Bandwidth
8000.1GB/s
Clock
1000MHz
Transfer Rate
2GT/s
Bandwidth
1024GB/s
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TDP
1400W
TDP
300W
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-
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-
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No Ports
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1x mini-DisplayPort 1.4
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-
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-
Max Resolution
Unknown
Max Resolution
7680x4320
Max Resolution Refresh Rate
-
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
-
-
Variable Refresh Rate
-
FreeSync
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
Unknown
Multi Monitor Support
3
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-
Content Protection
HDCP 2.2
Model
4x VCN 4.0
Model
VCE 4.1
Codec
-
-
-
-
-
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
Model
4x VCN 4.0
Model
UVD 7.2
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
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VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
-
-
-
-
Direct X
12
Direct 3D
12_1
-
-
OpenCL
3.0
-
-
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
-
-
-
-
GFX
9.4
-
-
-
-
Shader Model
6.7
-
-
GFX
9
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Power Connectors
-
-
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2x 8-Pin
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-
-
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-
PCIe Version
5.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
Infinity Fabric
Multi GPU Support
Supported
Type
CrossFire XDMA
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Height
111 mm (4.37 in)
Width
267 mm (10.51 in)
Depth
37 mm (1.46 in)
Change Comparison