Intel Server CPU v5.1.20
Intel Xeon Processor X5550
Benchmarks
Total score 1,390 / 10,000, rank 1712 of 2125.
Every score is out of 10,000, relative to the best CPUs. The total also counts the recommended price ($958, Wikipedia: List of Intel Xeon processors (Nehalem-based) (launch price)); see how scores work.
| Category | Score | Measured | |
|---|---|---|---|
| Single-thread | 2,115 | 1,272 points | |
| Multi-thread | 174 | 3,036 points | |
| 3D rendering | 146 | monster 13.5, junkshop 9.1, classroom 5.6 samples/min over 2 runs | |
| Gamingestimated | 1,965 |
Sources: PassMark (Intel Xeon X5550 @ 2.67GHz, 106 samples), Blender Open Data
Metadata
| Property | Value |
|---|---|
| Brand | Xeon |
| Intel name | Intel Xeon Processor X5550 |
| Processor number | X5550 |
| Codename | Nehalem EP |
| Generation | Nehalem |
| Microarchitecture | Nehalem |
| Performance class | Xeon 5000 series |
| Segment | Server |
| Released | 2009-Q12009 |
| Status | Discontinued |
| Cores | 4 |
| Threads | 8 |
| Base clock | 2.66 GHz |
| Max clock | 3.06 GHz |
| Cache | 8 MB Intel Smart Cache |
| Bus | 6.4 GT/s |
| TDP | 95 W |
| Lithography (as published) | 45 nm |
| Max memory | 144 GB |
| Memory channels | 3 |
| Max CPUs per system | 2 |
| Transistors | 731 million |
| Die size | 263 mm2 |
| Instruction set | 64-bit |
| Socket | FCLGA1366LGA1366 |
| Memory | DDR3 800/1066/1333DDR3 |
| Recommended price | $958 |
| Instruction sets | |
| Features | |
| Source | Intel ARK (via cpu-spec-dataset) |
Uses (dependencies)
- lithography: Intel Lithography
v13.0.0(45 nm) - simd: Intel SIMD
v0.0.1(MMX) - simd: Intel SIMD
v1.4.1(SSE4.2)
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.
- Foreshadow / L1 Terminal Fault (CVE-2018-3615, CVE-2018-3620, CVE-2018-3646): Speculative reads from the L1 data cache through non-present page table entries, breaking SGX, OS and VMM isolation.
- Microarchitectural Data Sampling (ZombieLoad, RIDL, Fallout) (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091): Data in store buffers, fill buffers and load ports leaks across privilege boundaries.
Matched by codename; individual steppings may differ.
Changelog
Since the previous patch: Intel Server CPU v5.1.19 (Xeon W5590)
Performance
- ~Total score 1663 → 1390 (-16%)
- ~Single-thread 2593 → 2115 (-18%)
- ~Multi-thread 193 → 174 (-10%)
- ~3D rendering 211 → 146 (-31%)
- ~Gaming 2337 → 1965 (-16%)
Specifications
- ~Base clock: 3.33 GHz → 2.66 GHz
- ~Max clock: 3.60 GHz → 3.06 GHz
- ~TDP: 130 W → 95 W
- +Max CPUs per system: 2
- ~Recommended price: $1,600 → $958
Since the previous minor (lower performance class): Intel Server CPU v5.0.16 (Xeon X3480)
Breaking changes
- ~Socket changed from LGA1156 to FCLGA1366
Performance
- ~Total score 1568 → 1390 (-11%)
- ~Single-thread 2397 → 2115 (-12%)
- ~Multi-thread 191 → 174 (-9%)
- ~3D rendering 122 → 146 (+20%)
- ~Gaming 2206 → 1965 (-11%)
Features
- −Trusted Execution Technology
Specifications
- ~Codename: Lynnfield → Nehalem EP
- ~Base clock: 3.06 GHz → 2.66 GHz
- ~Max clock: 3.73 GHz → 3.06 GHz
- ~Bus: 2.5 GT/s → 6.4 GT/s
- ~Max memory: 32 GB → 144 GB
- ~Memory channels: 2 → 3
- ~Max CPUs per system: 1 → 2
- ~Transistors: 774 million → 731 million
- ~Die size: 296 mm2 → 263 mm2
- ~Recommended price: $623 → $958
- −PCIe revision: 2.0
- −PCIe lanes: 16
Since the previous major (previous generation): Intel Server CPU v4.1.20 (Xeon X5272)
Breaking changes
- ~Socket changed from LGA771 to FCLGA1366
Security
- !Introduced: Foreshadow / L1 Terminal Fault
- !Introduced: Microarchitectural Data Sampling (ZombieLoad, RIDL, Fallout)
Performance
- ~Total score 1322 → 1390 (+5%)
- ~Single-thread 2361 → 2115 (-10%)
- ~Multi-thread 83 → 174 (+110%)
- ~3D rendering 49 → 146 (+198%)
- ~Gaming 1682 → 1965 (+17%)
Components
Instruction sets
- +SSE4.2
Features
- +Hyper-Threading
- +VT-d
- +EPT
- +Physical Address Extension
- +ECC memory
Specifications
- ~Codename: Wolfdale → Nehalem EP
- ~Microarchitecture: Penryn → Nehalem
- ~Cores: 2 → 4
- +Threads: 8
- ~Base clock: 3.40 GHz → 2.66 GHz
- +Max clock: 3.06 GHz
- ~Cache: 6 MB L2 Cache → 8 MB Intel Smart Cache
- ~Bus: 1600 MHz → 6.4 GT/s
- ~TDP: 80 W → 95 W
- +Max memory: 144 GB
- +Memory channels: 3
- +Max CPUs per system: 2
- ~Transistors: 410 million → 731 million
- ~Die size: 107 mm2 → 263 mm2
- ~Recommended price: $1,172 → $958
Raw source data
Show all 44 fields
| Field | Value |
|---|---|
| CpuId | 37106 |
| CpuName | Intel Xeon Processor X5550 |
| BornOnDate | Q1'09 |
| Bus | 6.4 GT/s |
| BusNumPorts | 2 |
| Cache | 8 MB Intel Smart Cache |
| ClockSpeed | 2.66 GHz |
| ClockSpeedMax | 3.06 GHz |
| CodeNameText | Products formerly Nehalem EP |
| CoreCount | 4 |
| DemandBasedSwitching | Yes |
| DieSize | 263 mm2 |
| ECCMemory | Yes |
| EM64 | Yes |
| Embedded | No |
| ExecuteDisable | Yes |
| ExtendedPageTables | Yes |
| HaltState | Yes |
| HyperThreading | Yes |
| InstructionSet | 64-bit |
| Lithography | 45 nm |
| MarketSegment | Server |
| MaxCPUs | 2 |
| MaxMem | 144 GB |
| MaxMemoryBandwidth | 32 GB/s |
| MaxTDP | 95 W |
| MemoryTypes | DDR3 800/1066/1333 |
| NumMemoryChannels | 3 |
| PackageSize | 42.5mm x 45mm |
| PhysicalAddressExtension | 40-bit |
| ProcessorNumber | X5550 |
| ProductGroup | Legacy Intel Xeon Processors |
| ServicingStatus | End of Servicing Lifetime |
| SocketsSupported | FCLGA1366 |
| SpeedstepTechnology | Yes |
| StatusCodeText | Discontinued |
| TBTVersion | 1.0 |
| TCase | 75°C |
| ThreadCount | 8 |
| TransistorCount | 731 million |
| TXT | No |
| VTD | Yes |
| VTX | Yes |
| SourceUrl | https://ark.intel.com/content/www/us/en/ark/products/37106/intel-xeon-processor-x5550-8m-cache-2-66-ghz-6-40-gts-intel-qpi.html |