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AMD Instinct MI100 32GB vs AMD Radeon PRO W7900 48GB

The Instinct MI100 delivers 50% more FP16 throughput than the Radeon PRO W7900 (185 vs 123 TFLOPS dense). The Radeon PRO W7900 counters with 16 GB more memory (48 GB vs 32 GB).

Instinct MI100: CDNA, 2020 Radeon PRO W7900: RDNA 3, 2023
FP16 dense lead
+50%
Instinct MI100: 185 vs 123 TFLOPS
Memory
32 vs 48 GB
16 GB more for the Radeon PRO W7900
Bandwidth
1.2 TB/s vs 864 GB/s
Instinct MI100 moves data faster
TDP
300 W vs 295 W
Radeon PRO W7900 draws 5 W less
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AMD Instinct MI100 32GB vs AMD Radeon PRO W7900 48GB

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AMD Instinct MI100 32GB

Leads on FP16 Full specs →

What is the AMD Instinct MI100?

The Instinct MI100 is a GPU from AMD on the CDNA architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. Instinct MI100 full specifications →

Can I rent the Instinct MI100 in the cloud?

Flopper is not tracking any live rental listings for the Instinct MI100 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the Instinct MI100 compare with other accelerators?

This page sets the Instinct MI100 against the Radeon PRO W7900. The Instinct MI100 is the older generation of the two. Both are AMD parts, and both ship as a PCIe card, 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 MI100 figures come from?

Every Instinct MI100 figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

AMD Radeon PRO W7900 48GB

Full specs →

What is the AMD Radeon PRO W7900?

The Radeon PRO W7900 is a GPU from AMD on the RDNA 3 architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. Radeon PRO W7900 full specifications →

Can I rent the Radeon PRO W7900 in the cloud?

Flopper is not tracking any live rental listings for the Radeon PRO W7900 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the Radeon PRO W7900 compare with other accelerators?

This page sets the Radeon PRO W7900 against the Instinct MI100. The Radeon PRO W7900 is the newer generation of the two. Both are AMD parts, and both ship as a PCIe card, 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 Radeon PRO W7900 figures come from?

Every Radeon PRO W7900 figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

Specifications

Instinct MI100
Radeon PRO W7900
Architecture
CDNARDNA 3
Launch Year
20202023
Form Factor
PCIePCIe
Memory
32 GB48 GB
Memory Bandwidth
1.2 TB/s864 GB/s
TDP
300 W295 W
Process Node
7nm5nm

Performance (TFLOPS)

Instinct MI100
Radeon PRO W7900
12 TFLOPS No verified data available
23 TFLOPS 61 TFLOPS
No verified data available No verified data available
92 TFLOPS No verified data available
185 TFLOPS 123 TFLOPS
No verified data available No verified data available
FP6
No verified data available No verified data available
No verified data available No verified data available
185 TOPS 123 TOPS

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 Radeon PRO W7900 is the newer part: RDNA 3 (2023) against the Instinct MI100's CDNA (2020).

The Radeon PRO W7900 carries 16 GB more memory (48 GB against 32 GB), so larger models fit on one GPU before you shard. Bandwidth is 1.2 TB/s against 864 GB/s, which sets the ceiling on decode speed.

Power is 300 W against 295 W, and at FP32 the Radeon PRO W7900 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, BF16, FP16, INT8, Sparsity and TFLOPS.

Frequently asked questions

What is better, the Instinct MI100 or the Radeon PRO W7900?

The Instinct MI100, on throughput. At FP16 precision the Instinct MI100 reaches 185 TFLOPS dense against 123 TFLOPS for the Radeon PRO W7900. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the Instinct MI100 or the Radeon PRO W7900?

Choose the Instinct MI100 for training and high-throughput inference: it has 50% more FP16 throughput than the Radeon PRO W7900. Choose the Radeon PRO W7900 when the model has to fit on one GPU: it carries 16 GB more memory. The Instinct MI100 draws 5 W more power, so budget for cooling and power delivery before you commit.

Which has more memory, the Instinct MI100 or the Radeon PRO W7900?

The Radeon PRO W7900 carries 48 GB of memory versus 32 GB for the Instinct MI100. Memory bandwidth is 1.2 TB/s for the Instinct MI100 and 864 GB/s for the Radeon PRO W7900.

How much power do the Instinct MI100 and the Radeon PRO W7900 draw?

The Instinct MI100 is rated at 300 W TDP and the Radeon PRO W7900 at 295 W. On FP32 throughput per watt, the Radeon PRO W7900 is the more efficient part.

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