AMD Instinct MI355X vs AMD Instinct MI250
AMD Instinct MI355X
AMD Instinct MI250
|
16384 Shaders
288GB HBM3e
2400MHz
|
13312 Shaders
128GB HBM2e
1700MHz
|
|
Peak AI Performance
20.13 PFLOPS
FP4 Tensor Sparse
|
Peak AI Performance
362.09 TOPS
INT4 Tensor
|
|
FP32
157.29 TFLOPS
|
FP32
45.26 TFLOPS
|
|
FP16
157.29 TFLOPS
|
FP16
90.52 TFLOPS
|
|
Form Factor
OAM Module
-
|
Form Factor
OAM Module
-
|
|
TDP
1400W
|
TDP
500W
|
|
-
-
-
-
-
|
-
-
-
-
-
|
|
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
362.09 TOPS
INT4 Tensor
|
|
FP4
10.07 PFLOPS
Tensor
20.13 PFLOPS
Tensor Sparse
|
-
-
-
|
|
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
|
-
-
-
-
-
-
|
|
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
90.52 TFLOPS
362.09 TFLOPS
Tensor (FP16 Accumulate)
-
362.09 TFLOPS
Tensor (FP32 Accumulate)
-
|
|
FP32
157.29 TFLOPS
157.29 TFLOPS
Tensor
314.57 TFLOPS
Tensor Sparse
|
FP32
45.26 TFLOPS
90.52 TFLOPS
Tensor
-
|
|
FP64
78.64 TFLOPS
78.64 TFLOPS
Tensor
|
FP64
45.26 TFLOPS
90.52 TFLOPS
Tensor
|
|
BF16
-
2.52 PFLOPS
Tensor
5.03 PFLOPS
Tensor Sparse
|
BF16
-
362.09 TFLOPS
Tensor
-
|
|
-
-
-
|
-
-
-
|
|
INT4
5.03 POPS
Tensor
10.07 POPS
Tensor Sparse
|
INT4
362.09 TOPS
Tensor
-
|
|
INT8
-
5.03 POPS
Tensor
10.07 POPS
Tensor Sparse
|
INT8
-
362.09 TOPS
Tensor
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Pixel
Fillrate
-
|
Pixel
Fillrate
-
|
|
-
-
|
-
-
|
|
Texture
Fillrate
-
|
Texture
Fillrate
1414.4 GTexel/s
|
|
Manufacturer
AMD
|
Manufacturer
AMD
|
|
Chip Designer
AMD
|
Chip Designer
AMD
|
|
Architecture
CDNA 4
|
Architecture
CDNA 2
|
|
Family
Instinct
|
Family
Instinct
|
|
Codename
CDNA Next
-
-
-
|
Codename
Aldebaran
Aldebaran XT
Variant
Aldebaran XT
|
|
Market Segment
Server
|
Market Segment
Server
|
|
Release Date
6/12/2025
|
Release Date
11/8/2021
|
|
Foundry
TSMC
TSMC IO Die
|
Foundry
TSMC
-
|
|
Fabrication Node
N3P
N6 IO Die
|
Fabrication Node
N6
-
|
|
Die Size
8x 181 mm²
-
|
Die Size
2x 724 mm²
-
|
|
Transistor Count
8x 17.4 Billion
2x 23 Billion IO Die
|
Transistor Count
2x 28 Billion
-
|
|
Transistor Density
96.13M/mm²
-
|
Transistor Density
38.67M/mm²
-
|
|
Form
OAM Module
|
Form
OAM Module
|
|
Shading Units
16384 Shaders
-
|
Shading Units
13312 Shaders
-
|
|
Texture Mapping Units
-
|
Texture Mapping Units
832 TMUs
|
|
Render Output Units
-
|
Render Output Units
-
|
|
Tensor Cores
1024 T-Cores
|
Tensor Cores
832 T-Cores
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Compute Units
256 CUs
|
Compute Units
208 CUs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
-
2400MHz
|
-
-
1000MHz Base
1700MHz
|
|
-
-
|
-
-
|
|
L1
-
-
16KB/CU
-
|
L1
-
-
16KB/CU
-
|
|
L2
16MB Shared
|
L2
16MB Shared
|
|
L3
256MB Shared
-
|
-
-
-
|
|
288GB
HBM3e
ECC
|
128GB
HBM2e
ECC
|
|
Bus Width
8192Bit
|
Bus Width
8192Bit
|
|
Clock
3906MHz
Transfer Rate
7.8GT/s
Bandwidth
8000.1GB/s
|
Clock
1600MHz
Transfer Rate
3.2GT/s
Bandwidth
3276.8GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
1400W
|
TDP
500W
|
|
-
-
|
-
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No Ports
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No Ports
|
|
Max Resolution
Unknown
|
Max Resolution
Unknown
|
|
Max Resolution Refresh Rate
-
|
Max Resolution Refresh Rate
-
|
|
Variable Refresh Rate
-
-
-
|
Variable Refresh Rate
-
-
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
|
Multi Monitor Support
Unknown
|
Multi Monitor Support
Unknown
|
|
-
-
|
-
-
|
|
Model
4x VCN 4.0
|
Model
2x VCN 2.6
|
|
Codec
-
-
-
-
-
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
|
Model
4x VCN 4.0
|
No Decoders
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
|
-
-
OpenCL
3.0
-
-
|
-
-
OpenCL
3.0
-
-
|
|
-
-
-
-
GFX
9.4
-
-
-
-
|
-
-
-
-
GFX
9.4
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
|
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
|
|
-
-
PCIe Version
5.0
PCIe Lanes
16
|
-
-
PCIe Version
4.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
Infinity Fabric
|
Multi GPU Support
Supported
Type
Infinity Fabric
|
|
-
-
-
-
-
-
|
-
-
-
-
-
-
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