AMD EPYC 7643P vs Intel Xeon 6731P Full Specs
EPYC 7643P1,640
Xeon 6731P-48 Cores | 32 Cores |
96 Threads | 64 Threads |
Base Clock 2.3GHz | Base Clock 2.5GHz |
Boost Clock 3.6GHz | Boost Clock 4.1GHz |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 64KB |
L1d 32KB | L1d 48KB |
L2 512KB | L2 2MB |
L3 256MB | L3 144MB |
Type DDR4 | Type DDR5 |
Max Memory 4.1TB | Max Memory 4.1TB |
ECC Yes | ECC Yes |
Channels 8 | Channels 8 |
Bus Width 512-bit | Bus Width 512-bit |
Speed 3200MT/s | Speed 6400MT/s |
Bandwidth 204.8GB/s | Bandwidth 409.6GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 204.8GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 409.6GB/s |
TDP 225W | TDP 245W |
cTDP-up 240W | cTDP-up - |
Max Operating Temp - | Max Operating Temp 102°C Max |
T-Case - | T-Case 84°C Max |
Bus Type PCIe | Bus Type - |
Bus Config 8 lanes | Bus Config - |
Bus Speed 16GT/s | Bus Speed - |
Bus Bandwidth 16GB/s | Bus Bandwidth - |
PCIe PCIe 4.0 x128252GB/sBandwidth | PCIe PCIe 5.0 x136535.6GB/sBandwidth |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Milan BreckenridgeDie Milan 8CCDVariant - - | Codename Granite Rapids-D 27Die Granite Rapids-HCCVariant Redwood CoveP-Core 32M-Core |
Market Segment Server | Market Segment Server |
Release Date Sep 5, 2023 | Release Date Feb 24, 2025 |
Foundry TSMC | Foundry Intel |
Other Foundries GlobalFoundriesIO | Other Foundries IntelIO |
Fabrication Node N7 12LPIO | Fabrication Node Intel 3 Intel 7IO |
Die Size 646mm² 416mm²IO | Die Size 598mm² 482mm²IO |
Transistor Count 33.2 Billion 8.3 BillionIO | Transistor Count - |
Transistor Density 51 MTr/mm² 20 MTr/mm²IO | Transistor Density - |
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