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AMD Radeon PRO W7800 32GB vs AMD Radeon RX 7900 XT 20GB

The Radeon RX 7900 XT delivers 14% more FP16 throughput than the Radeon PRO W7800 (103 vs 90 TFLOPS dense). The Radeon PRO W7800 counters with 12 GB more memory (32 GB vs 20 GB).

Radeon PRO W7800: RDNA 3, 2023 Radeon RX 7900 XT: RDNA 3, 2022
FP16 dense lead
+14%
Radeon RX 7900 XT: 103 vs 90 TFLOPS
Memory
32 vs 20 GB
12 GB more for the Radeon PRO W7800
Bandwidth
576 GB/s vs 800 GB/s
Radeon RX 7900 XT moves data faster
TDP
260 W vs 315 W
Radeon PRO W7800 draws 55 W less
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AMD Radeon PRO W7800 32GB vs AMD Radeon RX 7900 XT 20GB

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AMD Radeon PRO W7800 32GB

Full specs →

What is the AMD Radeon PRO W7800?

The Radeon PRO W7800 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 W7800 full specifications →

Can I rent the Radeon PRO W7800 in the cloud?

Flopper is not tracking any live rental listings for the Radeon PRO W7800 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the Radeon PRO W7800 compare with other accelerators?

This page sets the Radeon PRO W7800 against the Radeon RX 7900 XT. The Radeon PRO W7800 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 W7800 figures come from?

Every Radeon PRO W7800 figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

AMD Radeon RX 7900 XT 20GB

Leads on FP16 Full specs →

What is the AMD Radeon RX 7900 XT?

The Radeon RX 7900 XT 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 RX 7900 XT full specifications →

Can I rent the Radeon RX 7900 XT in the cloud?

Flopper is not tracking any live rental listings for the Radeon RX 7900 XT yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the Radeon RX 7900 XT compare with other accelerators?

This page sets the Radeon RX 7900 XT against the Radeon PRO W7800. The Radeon RX 7900 XT 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 Radeon RX 7900 XT figures come from?

Every Radeon RX 7900 XT figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

Specifications

Radeon PRO W7800
Radeon RX 7900 XT
Architecture
RDNA 3RDNA 3
Launch Year
20232022
Form Factor
PCIePCIe
Memory
32 GB20 GB
Memory Bandwidth
576 GB/s800 GB/s
TDP
260 W315 W
Process Node
5nm5nm

Performance (TFLOPS)

Radeon PRO W7800
Radeon RX 7900 XT
No verified data available No verified data available
45 TFLOPS 52 TFLOPS
No verified data available No verified data available
No verified data available No verified data available
90 TFLOPS 103 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
90 TOPS 103 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 W7800 is the newer part: RDNA 3 (2023) against the Radeon RX 7900 XT's RDNA 3 (2022).

The Radeon PRO W7800 carries 12 GB more memory (32 GB against 20 GB), so larger models fit on one GPU before you shard. Bandwidth is 576 GB/s against 800 GB/s, which sets the ceiling on decode speed.

Power is 260 W against 315 W, and at FP32 the Radeon PRO W7800 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 FP32, FP16, INT8, Sparsity and TFLOPS.

Frequently asked questions

Is the Radeon PRO W7800 faster than the Radeon RX 7900 XT?

At FP16 precision the Radeon RX 7900 XT reaches 103 TFLOPS dense against 90 TFLOPS for the Radeon PRO W7800. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the Radeon PRO W7800 or the Radeon RX 7900 XT?

Choose the Radeon RX 7900 XT for training and high-throughput inference: it has 14% more FP16 throughput than the Radeon PRO W7800. Choose the Radeon PRO W7800 when the model has to fit on one GPU: it carries 12 GB more memory. The Radeon RX 7900 XT draws 55 W more power, so budget for cooling and power delivery before you commit.

Which has more memory, the Radeon PRO W7800 or the Radeon RX 7900 XT?

The Radeon PRO W7800 carries 32 GB of memory versus 20 GB for the Radeon RX 7900 XT. Memory bandwidth is 576 GB/s for the Radeon PRO W7800 and 800 GB/s for the Radeon RX 7900 XT.

How much power do the Radeon PRO W7800 and the Radeon RX 7900 XT draw?

The Radeon PRO W7800 is rated at 260 W TDP and the Radeon RX 7900 XT at 315 W. On FP32 throughput per watt, the Radeon PRO W7800 is the more efficient part.

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