AMD Instinct MI250X vs AMD Instinct MI300X Full Specs

Summary

14,080 Shaders 1.7GHz	19,456 Shaders 2.1GHz
128GB HBM2e3.28TB/s	192GB HBM35.33TB/s
Peak·FP32·FP16 47.87 TFLOPS	Peak·FP32·FP16 163.4 TFLOPS
Form Factor OAM Module	Form Factor OAM Module
TDP 560W	TDP 560W

Highlights

Peak OPS

Peak OPS FP32 FP16 Tensor FP8-16 FP8-16 Tensor Sparse Tensor FP8-32 FP8-32 Tensor Sparse Tensor FP16-16 FP16-16 Tensor Sparse Tensor FP16-32 FP16-32 Tensor Sparse Tensor FP32 FP64 Tensor FP64 Tensor BF16 BF16 Tensor Sparse Tensor TF32 Tensor INT8 Tensor INT4 Memory Bandwidth TDP

Instinct MI250X383 TOPSINT4 Tensor

x1

Instinct MI300X5.23 POPSINT4 Tensor Sparse

x13.66

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Theoretical Performance

Clock Speed1700MHz UC·Base·Boost·OC	Clock Speed2100MHz UC·Base·Boost·OC
Peak OPS 383 TOPSINT4 Tensor	Peak OPS 5.23 POPSINT4 Tensor Sparse
-	Tensor FP8-16 2.62 PFLOPS FP8-16 Tensor Sparse 5.23 PFLOPS Tensor FP8-32 2.62 PFLOPS FP8-32 Tensor Sparse 5.23 PFLOPS
Tensor FP16-16 383 TFLOPS FP16-16 Tensor Sparse - Tensor FP16-32 383 TFLOPS FP16-32 Tensor Sparse -	Tensor FP16-16 1.31 PFLOPS FP16-16 Tensor Sparse 2.62 PFLOPS Tensor FP16-32 1.31 PFLOPS FP16-32 Tensor Sparse 2.62 PFLOPS
Tensor BF16 383 TFLOPS BF16 Tensor Sparse -	Tensor BF16 1.31 PFLOPS BF16 Tensor Sparse 2.62 PFLOPS
Tensor TF32 -	Tensor TF32 653.7 TFLOPS
FP32 47.87 TFLOPS Tensor FP32 95.74 TFLOPS	FP32 163.4 TFLOPS Tensor FP32 163.4 TFLOPS
FP64 47.87 TFLOPS Tensor FP64 95.74 TFLOPS	FP64 81.72 TFLOPS Tensor FP64 163.4 TFLOPS
Tensor INT4 383 TOPS	Tensor INT4 2.62 POPS
Tensor INT8 383 TOPS	Tensor INT8 2.62 POPS
Texture Rate 1.5 TTexel/s	Texture Rate 2.55 TTexel/s

Core Config

Shaders 14,080 Shaders	Shaders 19,456 Shaders
TMUs 880 TMUs	TMUs 1,216 TMUs
Tensor Cores 880 T-Cores	Tensor Cores 1,216 T-Cores
CUs 220 CUs	CUs 304 CUs

Clocks

Base Clock 1GHz	Base Clock 1GHz
Boost Clock 1.7GHz	Boost Clock 2.1GHz

Cache

L2 Cache 16.4MB shared	L2 Cache 16.4MB shared
L3 Cache -	L3 Cache 256MB shared

Memory

128GB HBM2e	192GB HBM3
Memory Bus 8192-bit	Memory Bus 8192-bit
Memory Speed 3.2GT/s	Memory Speed 5.2GT/s
Memory Bandwidth 3.28TB/s	Memory Bandwidth 5.33TB/s
ECC Yes	ECC Yes

Power & Thermals

TDP 560W

TDP 560W

Encoder

Encoder Model 2x VCN 2.6

Encoder Model 2x VCN 2.6

Decoder

Decoder Model 2x VCN 2.6

Decoder Model 2x VCN 2.6

Card

Form Factor OAM Module	Form Factor OAM Module
Cooling Passive	Cooling Passive

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture CDNA 2	Architecture CDNA 3
Family Instinct	Family Instinct
Branding	Branding
Codename Aldebaran	Codename Aqua Vanjaram
Chip Variant Aldebaran XTX	Chip Variant Aqua Vanjaram XTX
Market Segment Server	Market Segment Server
Release Date Nov 8, 2021	Release Date Dec 6, 2023

Fabrication

Foundry TSMC	Foundry TSMC
Other Foundries -	Other Foundries TSMCActive Interposer
Fabrication Node N6 -	Fabrication Node N5 N6Active Interposer
Die Size 1448mm²	Die Size 1480mm²
Transistor Count 56 Billion	Transistor Count 146 Billion
Transistor Density 38.67 MTr/mm²	Transistor Density 98.65 MTr/mm²

Images

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