Intel Xeon Gold 6526Y 16-core LGA4677

The Xeon Gold 6526Y posts a 42,195 PassMark multi-core score, landing in the 91st percentile for threaded work. It supports up to 2TB of DDR5 ECC and PCIe 5.0, making it a platform standout. But the 195W TDP and 39.5/100 efficiency score mean you'll pay for that performance in power draw.

The headline number is 42,195 in PassMark multi-core. That's top-tier territory, one of the best 16-core server chips we've benchmarked. The 37.5MB of L3 cache and 32MB of L2 keep those 32 threads fed, and the 3.9GHz boost gives short bursts of speed when a single task needs it. The 2.8GHz base clock is modest, but server workloads tend to sit at base for long stretches, and the chip holds its own there.

Single-thread performance is a different story. 2,972 in PassMark single-core puts it at the 80th percentile, which is solid but not spectacular. For database queries or web serving that lean on one thread, you'll feel the gap compared to higher-clocked desktop chips. The platform score is a standout at the 91st percentile, thanks to DDR5 ECC support up to 2TB and PCIe 5.0 lanes. That's where this chip earns its keep in dense server builds.

Against the AMD Ryzen 7 9800X3D, the 6526Y wins on raw multi-threaded throughput but loses badly on single-thread speed and efficiency. The Ryzen is a desktop gaming chip, so it's not a fair fight for server workloads, but if you're building a mixed-use box, the AMD part will feel snappier day to day. The HP Xeon P67080-B21 is a closer match in the server space, but the 6526Y's 91st percentile platform score gives it an edge for memory-hungry deployments. The D&H Core i9 BX80673I99940X is a desktop part that can't touch the Xeon's ECC memory support or 2TB capacity. For pure server duty, the 6526Y holds its own against these competitors, but the efficiency gap is real.

Pricing is all over the map. In the US, you'll find this chip between USD 1,258 and USD 1,524 across two listings, a spread of USD 266 for the exact same silicon. Best Buy has the low end of that range, so if you're buying in the US, that's the place to check first. In Europe, the gap is even wider, EUR 2,570 to EUR 2,970 across four listings in Germany, Spain, France, and Italy. That's a EUR 400 difference for the same tray processor. Shop around before you commit, because paying the high end of either range is just leaving money on the table.

The Xeon Gold 6526Y posts a PassMark multi-core score of 42,195, which lands it in the 91st percentile for multi-threaded work. That's a serious number for a 16-core chip, and it puts this Emerald Rapids part ahead of most server silicon we track. The single-core score of 2,972 is less flashy at the 80th percentile, but for a server CPU that's still respectable. What you're really buying here is throughput, not snappy desktop responsiveness.

The catch is efficiency. At 195W TDP with a 39.5/100 efficiency score, this chip drinks power like it's going out of style. You get 16 cores, 32 threads, DDR5 support up to 2TB, and PCIe 5.0, but you'll pay for it on the power bill. If your workload is heavily threaded and you've got the cooling and PSU headroom, the 6526Y delivers. If you're running light VMs or a home lab, this is overkill with a side of regret.

Skip this if power efficiency matters. The 39.5/100 efficiency score is the weakest area by far, and at 195W TDP, this chip will run up your electricity bill and demand serious cooling. Home lab builders and small office servers should look at lower-TDP options. Also skip it if you need strong single-thread performance, the 2,972 single-core score is only 80th percentile, and desktop chips will feel snappier for interactive workloads. And if you're buying in Europe, be careful, the EUR 400 price spread means you could easily overpay by a third.

The Xeon Gold 6526Y is a workhorse for heavily threaded server workloads. A 42,195 PassMark multi-core score at the 91st percentile is nothing to sneeze at, and the DDR5 ECC support up to 2TB makes it a strong pick for memory-intensive applications. But the 195W TDP and 39.5/100 efficiency score mean you'll need serious cooling and a power budget to match. If your workloads are parallel and you've got the infrastructure, this chip delivers. If you're counting watts or running light loads, look elsewhere.