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AMD Instinct MI325X OAM vs AMD Instinct MI300X 192GB

The Instinct MI325X and the Instinct MI300X deliver near-identical FP8 throughput (2,615 vs 2,615 TFLOPS dense). The Instinct MI325X also carries 64 GB more memory (256 GB vs 192 GB).

Instinct MI325X: CDNA 3, 2025 Instinct MI300X: CDNA 3, 2023
Memory
256 vs 192 GB
64 GB more for the Instinct MI325X
Bandwidth
6.0 TB/s vs 5.3 TB/s
Instinct MI325X moves data faster
TDP
1.0 kW vs 750 W
Instinct MI300X draws 250 W less
See rental pricing from $0.50/hr Download comparison sheet

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AMD Instinct MI325X OAM vs AMD Instinct MI300X 192GB

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AMD Instinct MI325X OAM

Full specs →

What is the AMD Instinct MI325X?

The Instinct MI325X is a GPU from AMD on the CDNA 3 architecture, an accelerator for AI training, inference and high-performance computing. It is an OAM module, the open accelerator format used in multi-GPU servers. Instinct MI325X full specifications →

Can I rent the Instinct MI325X in the cloud?

Yes. Cloud providers tracked by Flopper rent the Instinct MI325X by the hour, and the pricing page compares their current rates and the price history side by side. Instinct MI325X rental prices →

How does the Instinct MI325X compare with other accelerators?

This page sets the Instinct MI325X against the Instinct MI300X. The Instinct MI325X is the newer generation of the two. Both are AMD parts, and both ship as an OAM module, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the Instinct MI325X figures come from?

Every Instinct MI325X figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

AMD Instinct MI300X 192GB

Full specs →

What is the AMD Instinct MI300X?

The Instinct MI300X is a GPU from AMD on the CDNA 3 architecture, an accelerator for AI training, inference and high-performance computing. It is an OAM module, the open accelerator format used in multi-GPU servers. Instinct MI300X full specifications →

Can I rent the Instinct MI300X in the cloud?

Yes. Cloud providers tracked by Flopper rent the Instinct MI300X by the hour, and the pricing page compares their current rates and the price history side by side. Instinct MI300X rental prices →

How does the Instinct MI300X compare with other accelerators?

This page sets the Instinct MI300X against the Instinct MI325X. The Instinct MI300X is the older generation of the two. Both are AMD parts, and both ship as an OAM module, so they fit the same class of system. Flopper also compares it head to head with the H100 SXM5 80GB and H200 SXM 141GB, across every published precision, memory and power. Instinct MI300X vs H100 SXM5 80GB →

Where do the Instinct MI300X figures come from?

Every Instinct MI300X figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

Specifications

Instinct MI325X
Instinct MI300X
Architecture
CDNA 3CDNA 3
Launch Year
20252023
Form Factor
OAMOAM
Memory
256 GB192 GB
Memory Bandwidth
6.0 TB/s5.3 TB/s
TDP
1.0 kW750 W
Process Node
5nm FinFET5nm FinFET

Performance (TFLOPS)

Instinct MI325X
Instinct MI300X
82 TFLOPS 82 TFLOPS
163 TFLOPS 163 TFLOPS
654 TFLOPS
1,307 TFLOPS sparse
654 TFLOPS
1,307 TFLOPS sparse
1,307 TFLOPS
2,615 TFLOPS sparse
1,307 TFLOPS
2,615 TFLOPS sparse
1,307 TFLOPS
2,615 TFLOPS sparse
1,307 TFLOPS
2,615 TFLOPS sparse
2,615 TFLOPS
5,230 TFLOPS sparse
2,615 TFLOPS
5,230 TFLOPS sparse
FP6
No verified data available No verified data available
No verified data available No verified data available
2,615 TOPS
5,230 TOPS sparse
2,615 TOPS
5,230 TOPS sparse

Figures are dense. Where a vendor publishes a figure it sits under the dense one and never decides a winner. Hover any precision for its definition, or read the GPU glossary.

FLOPS by Precision

What actually differs

The Instinct MI325X is the newer part: CDNA 3 (2025) against the Instinct MI300X's CDNA 3 (2023).

The Instinct MI325X carries 64 GB more memory (256 GB against 192 GB), so larger models fit on one GPU before you shard. Bandwidth is 6.0 TB/s against 5.3 TB/s, which sets the ceiling on decode speed.

Power is 1.0 kW against 750 W, and at FP32 the Instinct MI300X does more work per watt. Weight the FP8 and FP16 rows for LLM work and the FP64 row for HPC.

New to the terms? The glossary explains FP64, FP32, TF32, BF16, FP16, FP8, INT8, Sparsity and TFLOPS.

Frequently asked questions

Is the Instinct MI325X faster than the Instinct MI300X?

They are close on paper: both deliver about 2,615 TFLOPS of dense FP8 throughput. Memory, bandwidth, and power are the deciding differences.

Which should you choose, the Instinct MI325X or the Instinct MI300X?

On raw FP8 throughput the Instinct MI325X and the Instinct MI300X are level, so the decision rests on memory, power and price. Choose the Instinct MI325X when the model has to fit on one GPU: it carries 64 GB more memory. The Instinct MI300X draws 250 W less power, which matters in an air-cooled or power-capped rack.

Which has more memory, the Instinct MI325X or the Instinct MI300X?

The Instinct MI325X carries 256 GB of memory versus 192 GB for the Instinct MI300X. Memory bandwidth is 6.0 TB/s for the Instinct MI325X and 5.3 TB/s for the Instinct MI300X.

How much power do the Instinct MI325X and the Instinct MI300X draw?

The Instinct MI325X is rated at 1.0 kW TDP and the Instinct MI300X at 750 W. On FP32 throughput per watt, the Instinct MI300X is the more efficient part.

How much do the Instinct MI325X and the Instinct MI300X cost to rent?

Live cloud listings tracked by Flopper price the Instinct MI325X from $3.80 per GPU-hour across 1 provider, and the Instinct MI300X from $0.50 per GPU-hour across 7 providers. The rental section on this page links to every provider, rate and the price history for each GPU.

Where to Rent

AMD Instinct MI325X OAM

Rent from

$3.80 / GPU-hr

Lowest of 2 live listings across 1 provider

See all Instinct MI325X rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

AMD Instinct MI300X 192GB

Rent from

$0.50 / GPU-hr

Lowest of 16 live listings across 7 providers · median $3.22

See all Instinct MI300X rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

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