Intel Core Ultra 7 265KF 20-core LGA1851
AMD Ryzen 7 3800X 8-core AM4
What Buyers Say
Intel Core Ultra 7 265KF 20-core LGA1851
Users upgrading from older Intel chips (like the 8700K or 8600K) report a massive performance boost in gaming and productivity, with one noting a 20fps average increase. The CPU runs cool and is praised for its value, especially when bought on discount. Some mention that it's not a worthwhile upgrade for those with recent Intel generations, and one user warns to be careful during installation to avoid bending pins.
Pros
- Huge performance boost from old chips
- Runs cool
- Good value on discount
- Great for gaming and productivity
- Stable with new BIOS updates
Cons
- Not worth upgrade from recent Intel
- Installation risk of bending pins
- Requires new motherboard, RAM, cooler
AMD Ryzen 7 3800X 8-core AM4
Users are overwhelmingly positive about this CPU, praising its performance, value, and cool operation. Many upgraded from older Intel or AMD chips and saw significant FPS gains and smoother multitasking. A few minor concerns include the mounting bracket being tricky and BIOS update requirements for older motherboards.
Pros
- Excellent performance
- Great value for money
- Runs cool
- Easy upgrade path
- Good stock cooler
Cons
- Mounting bracket is tricky
- BIOS update needed for older boards
- Stock cooler may conflict with tall RAM
Scores
Specifications
| Intel Core Ultra 7 265KF | AMD Ryzen 7 3800X | |
|---|---|---|
| Processor | ||
| Brand | Intel | AMD |
| Series | Core Ultra 7 | Ryzen 7 |
| Model | 265KF | 3800X |
| Codename | Arrow Lake-S | Matisse |
| Class | desktop | desktop |
| Process | 3★ | 7 |
| Cores & Clocks | ||
| Cores | 20★ | 8 |
| P-cores | 8 | 8 |
| E-cores | 12★ | — |
| Threads | 20★ | 16 |
| Base Clock | ||
| Boost Clock | ||
| Cache | ||
| L2 Cache | 36★ | 4 |
| L3 Cache | 30 | 32★ |
| Performance | ||
| PassMark Multi | ||
| PassMark Single | ||
| Memory | ||
| Memory Type | DDR5★ | DDR4 |
| Max Speed | ||
| Channels | 2 | 2 |
| Max Memory | No data | |
| ECC | ✗ | ✗ |
| Platform & Power | ||
| Socket | LGA1851 | AM4 |
| PCIe | 5.0 | 4.0 |
| PCIe Lanes | 24★ | 16 |
| TDP | 125 | 105★ |
| Max Turbo Power | 250★ | — |
| Unlocked | ✓ | ✓ |
| Graphics & AI | ||
| Integrated Graphics | None | None |
| NPU TOPS | 13★ | — |
Pros & Cons
Intel Core Ultra 7 265KF 20-core LGA1851
- Strong single thread (99th percentile)99th %ile
- Strong feature (97th percentile)97th %ile
- Strong efficiency (96th percentile)96th %ile
- Strong ai (96th percentile)96th %ile
AMD Ryzen 7 3800X 8-core AM4
- Strong social proof (97th percentile)97th %ile
- Strong feature (93rd percentile)93rd %ile
- Strong multi thread (80th percentile)80th %ile
- Strong ai (79th percentile)
Verdict
Scores 96 overall, wins 6 of 6 usage categories and 14 of 29 specs.