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AMD Instinct MI100 vs AMD Radeon PRO W7800: Comparison
Instinct MI100 vs Radeon PRO W7800 memory bandwidth compared
Memory bandwidth is where these two genuinely part company, Instinct MI100 1200 GB/s against Radeon PRO W7800 576 GB/s, a 52% lead for Instinct MI100. Boost clock runs the same way, 1502 MHz on the Instinct MI100 versus 2425 MHz on the Radeon PRO W7800, another win for Radeon PRO W7800. Add memory bus width to that, 4096 bit on the Instinct MI100 versus 256 bit on the Radeon PRO W7800, and the pattern holds. Radeon PRO W7800 also leads on tdp, 300 W on the Instinct MI100 versus 260 W on the Radeon PRO W7800. They differ on architecture too, CDNA on the Instinct MI100 versus RDNA 3 on the Radeon PRO W7800. Shader units is not the same on both, 7680 on the Instinct MI100 versus 4480 on the Radeon PRO W7800.
Which should you buy, Instinct MI100 or Radeon PRO W7800?
Buy the Instinct MI100 for buyers comparing AMD's official reference specifications and researching a chip before choosing a board-partner card, though it is not built for overclocking-focused enthusiasts (reference clocks only). It is the wrong buy for buyers wanting a specific retail card with cooler and warranty details. The Radeon PRO W7800 suits CAD/BIM and engineering workstations and mid-to-large VFX and 3D content creation, though it is the wrong buy for CUDA/OptiX-dependent pipelines and gaming. Our rating of the Radeon PRO W7800 (8/10): A well-balanced mid-flagship workstation card - most of the W7900's VRAM value at a friendlier price.
Frequently asked questions
Do the Instinct MI100 and Radeon PRO W7800 differ on board partner?
Yes. Board Partner reads Reference on the Instinct MI100 versus AMD Reference on the Radeon PRO W7800.
Is the Card Length the same on the Instinct MI100 and Radeon PRO W7800?
It is. Both are listed at 267 mm, so it is not a reason to pick one over the other.
Specs and benchmarks
GPU Brand
- AMD Instinct MI100
- AMD
- AMD Radeon PRO W7800
- AMD
Series
- AMD Instinct MI100
- Instinct
- AMD Radeon PRO W7800
- Radeon PRO W7000
Board Partner
- AMD Instinct MI100
- Reference
- AMD Radeon PRO W7800
- AMD Reference (workstation, no AIB partners)
Tier
- AMD Instinct MI100
- Datacenter
- AMD Radeon PRO W7800
- High-End
Memory Type
- AMD Instinct MI100
- HBM2
- AMD Radeon PRO W7800
- GDDR6Best
Boost Clock
- AMD Instinct MI100
- 1502 MHz-38%
- AMD Radeon PRO W7800
- 2425 MHzBest
TDP
- AMD Instinct MI100
- 300 W-15%
- AMD Radeon PRO W7800
- 260 WBest
Architecture
- AMD Instinct MI100
- CDNA
- AMD Radeon PRO W7800
- RDNA 3
Process Node
- AMD Instinct MI100
- TSMC 7nm FinFET
- AMD Radeon PRO W7800
- TSMC 5nm
Card Length
- AMD Instinct MI100
- 267 mm
- AMD Radeon PRO W7800
- 267 mm
Slot Width
- AMD Instinct MI100
- 2
- AMD Radeon PRO W7800
- 2
Shader Units
- AMD Instinct MI100
- 7680
- AMD Radeon PRO W7800
- 4480
Memory Bus Width
- AMD Instinct MI100
- 4096 bitBest
- AMD Radeon PRO W7800
- 256 bit-94%
Memory Bandwidth
- AMD Instinct MI100
- 1200 GB/sBest
- AMD Radeon PRO W7800
- 576 GB/s-52%
PCIe Generation
- AMD Instinct MI100
- PCIe 4.0
- AMD Radeon PRO W7800
- PCIe 4.0 x16
Launch Date
- AMD Instinct MI100
- 11/16/2020
- AMD Radeon PRO W7800
- 2023-04
Which one should you pick?
Choose AMD Instinct MI100 if you want the lower card length (267 mm vs 267 mm), the lower slot width (2 vs 2) and the higher memory bus width (4096 bit vs 256 bit).
Choose AMD Radeon PRO W7800 if you want the higher boost clock (2425 MHz vs 1502 MHz) and the lower TDP (260 W vs 300 W).
Price comparison
| Retailer | AMD Instinct MI100 | AMD Radeon PRO W7800 |
|---|---|---|
| Amazon | $2,499.00 View on Amazon | |
| B&H Photo | View on B&H Photo | |
| CDW | View on CDW | |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
AMD Radeon PRO W7800
8 / 10 Expert Rating
A well-balanced mid-flagship workstation card - most of the W7900's VRAM value at a friendlier price.