AMD EPYC 9254 vs Intel Xeon 6556P-B Full Specs
EPYC 92542,215
Xeon 6556P-B-24 Cores | 36 Cores |
48 Threads | 72 Threads |
Base Clock 2.9GHz | Base Clock 2.3GHz |
Boost Clock 4.15GHz | Boost Clock 3.5GHz |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 64KB |
L1d 32KB | L1d 48KB |
L2 1MB | L2 2MB |
L3 128MB | L3 144MB |
Type DDR5 | Type DDR5 |
Max Memory 6.14TB | Max Memory 1.13TB |
ECC Yes | ECC Yes |
Channels 12 | Channels 4 |
Bus Width 768-bit | Bus Width 256-bit |
Speed 4800MT/s | Speed 6400MT/s |
Bandwidth 460.8GB/s | Bandwidth 204.8GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 460.8GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 204.8GB/s |
TDP 200W | TDP 215W |
cTDP-down 200W | cTDP-down - |
cTDP-up 240W | cTDP-up - |
T-Case - | T-Case 85°C Max |
Bus Type PCIe | Bus Type - |
Bus Config 8 lanes | Bus Config - |
Bus Speed 32GT/s | Bus Speed - |
Bus Bandwidth 32GB/s | Bus Bandwidth - |
PCIe PCIe 5.0 x128504.1GB/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 Genoa DurangoDie Genoa 4CCDVariant - - | Codename Granite Rapids-D 27Die Granite Rapids-HCCVariant Redwood CoveP-Core 36M-Core |
Market Segment Server | Market Segment Server |
Release Date Nov 10, 2022 | Release Date Feb 24, 2025 |
Foundry TSMC | Foundry Intel |
Other Foundries TSMCIO | Other Foundries IntelIO |
Fabrication Node N5 N6IO | Fabrication Node Intel 3 Intel 7IO |
Die Size 284mm² 388mm²IO | Die Size 598mm² 482mm²IO |
Transistor Count 26.3 Billion 11 BillionIO | Transistor Count - |
Transistor Density 93 MTr/mm² 28 MTr/mm²IO | Transistor Density - |
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