AMD Radeon Instinct MI455X vs Intel Arc A380
GPU Specs Compare
Graphics Card
Release Date
Jul 2026
Jun 2022
Generation
Radeon Instinct
Alchemist(Arc 3)
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1000 MHz
2000 MHz
Boost Clock
2400 MHz
2050 MHz
Memory Clock
1900 MHz
1937 MHz
Memory
Memory Size
432GB
6GB
Memory Type
HBM4
GDDR6
Memory Bus
24576bit
96bit
Bandwidth
23.3TB/s
186.0GB/s
Render Config
Compute Units
256
-
Shading Units
32768
1024
TMUs
1024
64
ROPs
0
32
L1 Cache
32 KB (per CU)
-
L2 Cache
192 MB
4 MB
Tensor Cores
-
128
RT Cores
-
8
Theoretical Performance
Pixel Rate
0 MPixel/s
65.60 GPixel/s
Texture Rate
2457.6 GTexel/s
131.2 GTexel/s
FP16 (half)
157.3 TFLOPS
8.397 TFLOPS
FP32 (float)
157.3 TFLOPS
4.198 TFLOPS
FP64 (double)
2.458 TFLOPS
1050 GFLOPS
Graphics Processor
GPU Name
MI450 256CU
DG2-128
Architecture
CDNA 5.0
Generation 12.7
Foundry
TSMC
TSMC
Process Size
2 nm
6 nm
Transistors
320 billion
7.2 billion
Die Size
Unknown
157 mm²
GPU Variant
-
ACM-G11
Board Design
TDP
2300W
75W
Suggested PSU
2700 W
250 W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 2.0
Power Connectors
None
1x 8-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
Shader Model
N/A
6.6
📊 Benchmark
3DMark Time Spy
-
4,277
3DMark Time Spy Extreme
-
2,017
3DMark Speed Way
-
576
Blender
-
524