Head-to-Head Spec Duel · /pc
AMD Ryzen 7 7800X3D vs Ryzen 7 9800X3D — AM5 Thermal & Value Duel
2nd-Gen 3D V-Cache vs 1st-Gen 3D V-Cache on MSI B650 Tomahawk + Peerless Assassin 120 SE.
95
AMD Ryzen 7 7800X3D
8C/16T • 5.0 GHz Boost • 96MB L3 • 120W TDP • AM5
Est. Street/MSRP ~$399
VS
97
AMD Ryzen 7 9800X3D
8C/16T • 5.2 GHz Boost • 96MB L3 Under-CCD • 120W TDP • AM5
Est. Street/MSRP ~$479
| Technical Specification Metric | AMD Ryzen 7 7800X3D | AMD Ryzen 7 9800X3D | Real-World Fitment Impact | Verdict |
|---|---|---|---|---|
| AM5 Socket & B650 BIOS Compatibility | Native AM5 Drop-In | AM5 (USB BIOS Flashback Ready) | MSI B650 Tomahawk supports both with hardware BIOS Flashback button | Zero Socket Conflict ✓ |
| Thermal Envelope under PA120 SE (245W Rated) | 120W TDP (162W PPT) | 120W TDP (162W PPT) | 9800X3D moves 3D V-Cache below CCD for ~6°C lower sustained load temps | +83W Cooler Headroom ✓ |
| Est. Street Price / MSRP | ~$399 | ~$479 | $80 delta can be allocated toward 64GB CL30 DDR5 or 2TB NVMe | Δ $80 Street |