Intel CPU v8.2.1
Intel Pentium D Processor 820
Metadata
| Property | Value |
|---|---|
| Brand | Pentium |
| Intel name | Intel Pentium D Processor 820 |
| Processor number | 820 |
| Codename | Smithfield |
| Generation | NetBurst (Pentium 4) |
| Microarchitecture | NetBurst |
| Performance class | Pentium D |
| Segment | Desktop |
| Released | 2005-Q22005 |
| Status | Discontinued |
| Cores | 2 |
| Base clock | 2.80 GHz |
| Cache | 2 MB L2 Cache |
| Bus | 800 MHz |
| TDP | 95 W |
| Lithography (as published) | 90 nm |
| Transistors | 230 million |
| Die size | 206 mm2 |
| Instruction set | 64-bit |
| Socket | PLGA775LGA775 |
| Recommended price | $241 |
| Instruction sets | |
| Features | |
| Source | Intel ARK (via cpu-spec-dataset) |
Uses (dependencies)
- lithography: Intel Lithography
v11.0.0(90 nm) - simd: Intel SIMD
v0.0.1(MMX) - simd: Intel SIMD
v1.1.0(SSE2)
Used by (0)
Nothing depends on this version.
Known vulnerabilities and defects
- Meltdown (CVE-2017-5754): Rogue data cache load: user code can read kernel memory through speculative execution.
- Spectre variant 1 (bounds check bypass) (CVE-2017-5753): Mistrained conditional branches speculatively read out-of-bounds data. Mitigated in software only; every speculative out-of-order core is affected.
Matched by codename; individual steppings may differ.
Changelog
Since the previous patch: Intel CPU v8.2.0 (Pentium D 805)
Specifications
- ~Base clock: 2.66 GHz → 2.80 GHz
- ~Bus: 533 MHz → 800 MHz
- ~Recommended price: $143 → $241
Since the previous minor (lower performance class): Intel CPU v8.1.1 (Pentium 4 2.00 GHz, 512K Cache, 400 MHz FSB)
Breaking changes
- ~Socket changed from PPGA478 to PLGA775
Features
- +Intel 64
- +Execute Disable Bit
- +Physical Address Extension
Specifications
- ~Codename: Northwood → Smithfield
- ~Cores: 1 → 2
- ~Base clock: 2.00 GHz → 2.80 GHz
- ~Cache: 512 KB L2 Cache → 2 MB L2 Cache
- ~Bus: 400 MHz → 800 MHz
- ~TDP: 54.3 W → 95 W
- ~Transistors: 55 million → 230 million
- ~Die size: 131 mm2 → 206 mm2
- ~Instruction set: 32-bit → 64-bit
- +Recommended price: $241
Since the previous major (previous generation): Intel CPU v7.1.1 (Pentium II (Klamath))
Breaking changes
- ~Socket changed from Slot 1 to PLGA775
Instruction sets
- +SSE
- +SSE2
Features
- +Intel 64
- +Execute Disable Bit
- −Protected mode
- −Memory management unit
- −32-bit (IA-32)
- −Paging
- −Virtual 8086 mode
- −On-die L1 cache
- −On-die x87 FPU
- −Out-of-order execution
Specifications
- ~Codename: Klamath → Smithfield
- ~Microarchitecture: P6 (out-of-order) → NetBurst
- +Cores: 2
- ~Base clock: 233 MHz → 2.80 GHz
- ~Cache: 32 KB L1, 512 KB L2 (cartridge) → 2 MB L2 Cache
- +Bus: 800 MHz
- +TDP: 95 W
- ~Transistors: 7,500,000 → 230 million
- +Die size: 206 mm2
- +Instruction set: 64-bit
- +Recommended price: $241
- −Data width: 32-bit
- −Address width: 36-bit
- −Max clock: 300 MHz
Raw source data
Show all 39 fields
| Field | Value |
|---|---|
| CpuId | 27512 |
| CpuName | Intel Pentium D Processor 820 |
| AESTech | No |
| BornOnDate | Q2'05 |
| Bus | 800 MHz |
| Cache | 2 MB L2 Cache |
| ClockSpeed | 2.80 GHz |
| CodeNameText | Products formerly Smithfield |
| CoreCount | 2 |
| CoreVoltage | 1.200V-1.400V |
| DemandBasedSwitching | No |
| DieSize | 206 mm2 |
| ECCMemory | No |
| EM64 | Yes |
| Embedded | No |
| ExecuteDisable | Yes |
| FSBParity | No |
| HaltState | Yes |
| HyperThreading | No |
| InstructionSet | 64-bit |
| Lithography | 90 nm |
| MarketSegment | Desktop |
| MaxTDP | 95 W |
| PackageSize | 37.5mm x 37.5mm |
| PhysicalAddressExtension | 32-bit |
| ProcessorNumber | 820 |
| ProductGroup | Legacy Intel Pentium Processor |
| ServicingStatus | End of Servicing Updates |
| SocketsSupported | PLGA775 |
| SpeedstepTechnology | No |
| StatusCodeText | Discontinued |
| TBTVersion | No |
| TCase | 64.1°C |
| ThermalMonitoring2Indicator | No |
| TransistorCount | 230 million |
| TXT | No |
| VTD | No |
| VTX | No |
| SourceUrl | https://ark.intel.com/content/www/us/en/ark/products/27512/intel-pentium-d-processor-820-2m-cache-2-80-ghz-800-mhz-fsb.html |