Intel Core i7-7820X vs Intel Xeon 638 Full Specs
Core i7-7820X1,427
Xeon 638-8 Cores | 16 Cores |
16 Threads | 32 Threads |
Base Clock 3.6GHz | Base Clock 3.2GHz |
Boost Clock 4.5GHz | Boost Clock 4.8GHz |
Overclocking Unlocked | Overclocking Locked |
L1i 32KB | L1i 64KB |
L1d 32KB | L1d 48KB |
L2 1MB | L2 2MB |
L3 11MB | L3 72MB |
Type DDR4 | Type DDR5 |
Max Memory 128GB | Max Memory 2.05TB |
ECC No | ECC Yes |
Channels 4 | Channels 4 |
Bus Width 256-bit | Bus Width 256-bit |
Speed 2666MT/s | Speed 6400MT/s |
Bandwidth 85.3GB/s | Bandwidth 204.8GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 85.3GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 204.8GB/s |
TDP 140W | TDP 180W |
Peak Power - | Peak Power 216W |
Max Operating Temp 99°C Max | Max Operating Temp 100°C Max |
T-Case - | T-Case 76°C Max |
Included Cooler 0 | Included Cooler - |
Bus Type DMI | Bus Type - |
Bus Config 4 lanes | Bus Config - |
Bus Speed 8GT/s | Bus Speed - |
Bus Bandwidth 4GB/s | Bus Bandwidth - |
PCIe PCIe 3.0 x2827.6GB/sBandwidth | PCIe PCIe 5.0 x80315GB/sBandwidth |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Skylake-E - Skylake-SP-LCCVariant - - | Codename Granite Rapids-D 16Die Granite Rapids-LCCVariant Redwood CoveP-Core 16M-Core |
Market Segment Workstation | Market Segment Workstation |
Release Date Jun 19, 2017 | Release Date Feb 2, 2026 |
Foundry Intel | Foundry Intel |
Other Foundries - | Other Foundries IntelIO |
Fabrication Node 14nm - | Fabrication Node Intel 3 Intel 7IO |
Die Size 322mm² - | Die Size - 482mm²IO |
Transistor Count 5.5 Billion | Transistor Count - |
Transistor Density 17 MTr/mm² | Transistor Density - |
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