Intel Xeon Gold 6256 12-core LGA3647
The 4.5GHz boost clock across 12 cores makes this 14nm Xeon stand out for latency-sensitive server tasks that benefit from high single-thread speed alongside moderate multi-threading. Its 33MB L3 cache and Socket 3647 compatibility provide a straightforward upgrade path for existing 2nd Gen Xeon infrastructure. This processor is best for IT administrators refreshing legacy servers that require strong per-core performance for lightly threaded enterprise applications.
Cores 12
Threads 24
Boost Clock 4500 MHz
L3 Cache 33 MB
TDP 205 W
Socket Socket 3647
35 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong feature (79th percentile) 79th
Cons
- Below average single thread (10th percentile)
- Below average platform (18th percentile)
- Below average efficiency (35th percentile)
The proof
Performance
Specifications
Full Specifications
Processor
| Brand | Intel |
| Series | Xeon Gold |
| Model | 6256 |
| Class | server |
| Process | 14 |
Cores & Clocks
| Cores | 12 |
| Threads | 24 |
| Base Clock | 3600 |
| Boost Clock | 4500 |
Cache
| L2 Cache | 12 |
| L3 Cache | 33 MB |
Performance
| PassMark Multi | 7363 |
| PassMark Single | 259 |
Platform & Power
| Socket | Socket 3647 |
| TDP | 205 |
| Unlocked | Yes |
vs Competition
| Spec | Intel Xeon Gold 6256 | AMD EPYC 100-000000790 | MICRO CENTER 9950X3DMAGX870ETMKWF | ALLEN BRADLEY SLC 5/05 1747-L551 | Intel Xeon w5-2455X | Intel Core i9 i9-9900K |
|---|---|---|---|---|---|---|
| Cores | 12 | 64 | - | 1 | 12 | 8 |
| Threads | 24 | 128 | - | - | 24 | 16 |
| Boost Clock Mhz | 4500 | 3750 | - | - | 4600 | 5000 |
| L3 Cache Mb | 33 | 384 | - | - | 30 | 16 |
| Tdp W | 205 | 360 | - | - | 200 | 95 |
| Socket | Socket 3647 | SP5 | - | - | LGA 4677 | LGA1151 |
| Integrated Graphics | - | - | - | - | - | Intel UHD Graphics 630 |
| Compare | Compare | Compare | Compare | Compare |
| Product | AI | Feature | Platform | Efficiency | Multi Thread | Social Proof | Single Thread |
|---|---|---|---|---|---|---|---|
| Intel Xeon Gold 6256 | 42.6 | 79.1 | 17.7 | 34.7 | 52.6 | 62.2 | 10.3 |
| AMD EPYC 100-000000790 Compare | 99.2 | 76.9 | 99.9 | 84 | 98.9 | 11.8 | 79 |
| MICRO CENTER 9950X3DMAGX870ETMKWF Compare | 3.5 | 20.2 | 17.7 | 4.1 | 4.1 | 0 | 3.3 |
| ALLEN BRADLEY SLC 5/05 1747-L551 Compare | 3.5 | 20.2 | 17.7 | 4.1 | 4.1 | 38.3 | 3.3 |
| Intel Xeon w5-2455X Compare | 89.9 | 74.5 | 97.5 | 74 | 88.8 | 12.3 | 85.3 |
| Intel Core i9 i9-9900K Compare | 74.8 | 83.3 | 68.5 | 74.8 | 74 | 96.6 | 79.9 |
Price
Value & Pricing
We started tracking prices for this product on Jun 17, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
