Intel Xeon 6521P vs Intel Xeon 6544P-B Full Specs
Xeon 6521P409.6GB/sXeon 6544P-B179.2GB/s24 Cores | 32 Cores |
48 Threads | 64 Threads |
Base Clock 2.6GHz | Base Clock 2GHz |
Boost Clock 4.1GHz | Boost Clock 3.3GHz |
Overclocking Locked | Overclocking Locked |
L1i 64KB | L1i 64KB |
L1d 48KB | L1d 48KB |
L2 2MB | L2 2MB |
L3 144MB | L3 128MB |
Type DDR5 | Type DDR5 |
Max Memory 4.1TB | Max Memory 1.13TB |
ECC Yes | ECC Yes |
Channels 8 | Channels 4 |
Bus Width 512-bit | Bus Width 256-bit |
Speed 6400MT/s | Speed 5600MT/s |
Bandwidth 409.6GB/s | Bandwidth 179.2GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 409.6GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 179.2GB/s |
TDP 225W | TDP 170W |
Max Operating Temp 100°C Max | Max Operating Temp - |
T-Case 82°C Max | T-Case 85°C Max |
PCIe PCIe 5.0 x136535.6GB/sBandwidth | PCIe PCIe 5.0 x32126GB/sBandwidth |
- | PCIe Secondary PCIe 4.0 x1631.5GB/sBandwidth |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Granite Rapids-D 27Die Granite Rapids-HCCVariant Redwood CoveP-Core 24M-Core | Codename Granite Rapids-D 27Die Granite Rapids-HCCVariant Redwood CoveP-Core 32M-Core |
Market Segment Server | Market Segment Server |
Release Date Feb 24, 2025 | Release Date Dec 1, 2025 |
Foundry Intel | Foundry Intel |
Other Foundries IntelIO | Other Foundries IntelIO |
Fabrication Node Intel 3 Intel 7IO | Fabrication Node Intel 3 Intel 7IO |
Die Size 598mm² 482mm²IO | Die Size 598mm² 482mm²IO |
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