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AMD Ryzen 7 8705G vs AMD Ryzen 7 9850X3D: Comparison
What is the difference between Ryzen 7 8705G and Ryzen 7 9850X3D?
Start with l3 cache, because it is the widest measured gap between them: Ryzen 7 8705G 16 MB against Ryzen 7 9850X3D 96 MB, 83% in favour of Ryzen 7 9850X3D. Release year is not the same on both, 2025 on the Ryzen 7 8705G versus 2026 on the Ryzen 7 9850X3D. There is a split on igpu as well, AMD Radeon 780M on the Ryzen 7 8705G versus AMD Radeon Graphics on the Ryzen 7 9850X3D. They differ on base power too, 45-65W on the Ryzen 7 8705G versus 120 W on the Ryzen 7 9850X3D. They differ on memory type too, DDR5, 2-Channel on the Ryzen 7 8705G versus DDR5-5600 on the Ryzen 7 9850X3D.
Which should you buy, Ryzen 7 8705G or Ryzen 7 9850X3D?
The Ryzen 7 8705G is the one to take for mainstream desktop builds and everyday productivity, though it is not built for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads. Buy the Ryzen 7 9850X3D for upgrading an existing AM5 system without changing the motherboard, though it is the wrong buy for heavy multi-core rendering, where 12 and 16-core chips finish faster. It is equally the pick for gaming builds on AM5 that benefit from 96 MB of 3D V-Cache. It is not the one for buyers expecting a cooler in the box, since none is bundled.
What Ryzen 7 8705G and Ryzen 7 9850X3D have in common
Everything else lines up. Total cores, performance cores, efficiency cores, total threads and integrated graphics read the same on both, so those are not worth weighing. They match on 5 further specifications as well.
Frequently asked questions
Do the Ryzen 7 8705G and Ryzen 7 9850X3D differ on p-core boost clock?
Yes. P-Core Boost Clock reads Up to 5.1 GHz on the Ryzen 7 8705G versus 5.6 GHz on the Ryzen 7 9850X3D.
Is the Socket the same on the Ryzen 7 8705G and Ryzen 7 9850X3D?
It is. Both are listed at AM5, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 7 8705G
- Desktops
- AMD Ryzen 7 9850X3D
- Desktop
Codename
- AMD Ryzen 7 8705G
- Phoenix
- AMD Ryzen 7 9850X3D
- Granite Ridge
Release Year
- AMD Ryzen 7 8705G
- 2025
- AMD Ryzen 7 9850X3D
- 2026
TDP
- AMD Ryzen 7 8705G
- 65 W
- AMD Ryzen 7 9850X3D
- 120 W
iGPU
- AMD Ryzen 7 8705G
- AMD Radeon 780M (12 cores, up to 2900 MHz)
- AMD Ryzen 7 9850X3D
- AMD Radeon Graphics
Market Segment
- AMD Ryzen 7 8705G
- Desktop
- AMD Ryzen 7 9850X3D
- Desktop
Socket
- AMD Ryzen 7 8705G
- AM5
- AMD Ryzen 7 9850X3D
- AM5
Process Node
- AMD Ryzen 7 8705G
- 4 nm
- AMD Ryzen 7 9850X3D
- TSMC 4nm (Zen 5)
Total Cores
- AMD Ryzen 7 8705G
- 8
- AMD Ryzen 7 9850X3D
- 8
Performance Cores
- AMD Ryzen 7 8705G
- 8
- AMD Ryzen 7 9850X3D
- 8
Efficiency Cores
- AMD Ryzen 7 8705G
- 0
- AMD Ryzen 7 9850X3D
- 0
Total Threads
- AMD Ryzen 7 8705G
- 16
- AMD Ryzen 7 9850X3D
- 16
SMT Enabled
- AMD Ryzen 7 8705G
- Yes
- AMD Ryzen 7 9850X3D
- Yes
P-Core Base Clock
- AMD Ryzen 7 8705G
- 4.2 GHz
- AMD Ryzen 7 9850X3D
- 4.7 GHz
P-Core Boost Clock
- AMD Ryzen 7 8705G
- Up to 5.1 GHz
- AMD Ryzen 7 9850X3D
- 5.6 GHz
Unlocked Multiplier
- AMD Ryzen 7 8705G
- Yes
- AMD Ryzen 7 9850X3D
- Yes
L2 Cache
- AMD Ryzen 7 8705G
- 8 MB
- AMD Ryzen 7 9850X3D
- 8 MB
L3 Cache
- AMD Ryzen 7 8705G
- 16 MB-83%
- AMD Ryzen 7 9850X3D
- 96 MBBest
Base Power
- AMD Ryzen 7 8705G
- 45-65W
- AMD Ryzen 7 9850X3D
- 120 W
Memory Type
- AMD Ryzen 7 8705G
- DDR5, 2-Channel
- AMD Ryzen 7 9850X3D
- DDR5-5600
Integrated Graphics
- AMD Ryzen 7 8705G
- Yes
- AMD Ryzen 7 9850X3D
- Yes
PCIe Generation
- AMD Ryzen 7 8705G
- PCIe 4.0
- AMD Ryzen 7 9850X3D
- PCIe 5.0
Which one should you pick?
Choose 8705G if you want the higher L2 cache (8 MB vs 8 MB).
Choose 9850X3D if you want the higher L3 cache (96 MB vs 16 MB).
Price comparison
| Retailer | AMD Ryzen 7 8705G | AMD Ryzen 7 9850X3D |
|---|---|---|
| Amazon | $499.00 View on Amazon | |
| Newegg | View on Newegg | |
| Best Buy | View on Best Buy |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.