Performance comparison: which is faster?
Xeon Platinum 8490H (Intel, 2023) and Xeon W9-3545 (Intel, 2023) are compared here. Compare not only scores, but also whether the motherboard can be reused and which GPU class is balanced with each CPU.
Overall performance: Xeon Platinum 8490H is about 57.1% faster
The sockets differ (LGA4677 / FCLGA4677), so switching requires a motherboard replacement. For games, performance balance with the GPU (guideline CPU:GPU = 0.9:1) matters more than CPU speed alone.
Relative performance score (higher is faster). Actual speed varies by workload, cooling, and memory configuration.
| Item | Xeon Platinum 8490H | Xeon W9-3545 |
|---|---|---|
| Performance Score | 110,000 | 70,000 |
| Generation | Xeon | Xeon |
| Socket | LGA4677 | FCLGA4677 |
| Release Year | 2023 | 2023 |
| Type | Server | Server |
| Compatible GPU Example | GeForce RTX 4060 Laptop GPU | GeForce RTX 4070 |
| If You Want To... | Recommended |
|---|---|
| Prioritize maximum speed for heavy work or a high-end GPU | Xeon Platinum 8490H |
| Upgrade while reusing the current motherboard | Choose the CPU matching your motherboard socket |
| Prioritize value and adequate performance | Xeon W9-3545 (the lower model is often sufficient) |
Xeon Platinum 8490H is about 57.1% higher by score (Xeon Platinum 8490H: 110000 points / Xeon W9-3545: 70000 points). For gaming, the GPU tier usually matters more than a few percent of CPU difference. For CPU-heavy work such as video editing and streaming, choose the faster CPU.
Both are Xeon-generation CPUs.The sockets differ (LGA4677 / FCLGA4677), so switching requires a motherboard replacement.
Using our CPU:GPU = 0.9:1 guideline, GeForce RTX 4060 Laptop GPU pairs well with Xeon Platinum 8490H and GeForce RTX 4070 pairs well with Xeon W9-3545. If either GPU is too strong or too weak, one part holds the other back.
