Key facts
Production status: End-of-life
Release date: 2010-01-07
Cores / Threads: 2 / 4
Base clock: 3333 MHz
Turbo clock: 3600 MHz
TDP: 87 W
Process: 32 nm
Codename: Clarkdale
Generation: Core i5 (Clarkdale)
All available specs
| Field | Value |
|---|---|
| name | Core i5-661 |
| Socket | Intel Socket 1156 |
| Foundry | Intel |
| Process Size | 32 nm |
| Transistors | 382 million |
| Die Size | 81 mm² |
| Package | FC-LGA10 |
| Market | Desktop |
| Production Status | End-of-life |
| Release Date | Jan 7th, 2010 |
| Part# | SLBNE SLBTB |
| Frequency | 3.333 GHz |
| Turbo Clock | up to 3.6 GHz |
| Base Clock | 133 MHz |
| Multiplier | 25.0x |
| Multiplier Unlocked | No |
| Voltage | 1.4 V |
| Codename | Clarkdale |
| Generation | Core i5 (Clarkdale) |
| Memory Support | DDR3 |
| ECC Memory | No |
| # of Cores | 2 |
| # of Threads | 4 |
| SMP # CPUs | 1 |
| Integrated Graphics | Intel HD |
| Cache L1 | 64 KB (per core) |
| Cache L2 | 256 KB (per core) |
| Features | MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, Intel 64, HTT, VT-x, VT-d, XD-Bit, TXT, TBT |
| Notes | Intel HD Graphics Frequency: 900MHz |
| Rated Speed | 1333 MT/s |
| Memory Bus | Dual-channel |
| Memory Bandwidth | 21.3 GB/s |
| Launch Price | $196 |
| PCI-Express | Gen 2, 16 Lanes (CPU only) |
| Cache L3 | 4 MB (shared) |
| Chipsets | Intel H57, Intel H55, Intel P55 |
| Uncore Frequency | 2.4 GHz |
| Benchmark rank | 2010 |
| Benchmark samples | 176 |
| Benchmark price | 178.85 |
| Benchmark category | Desktop |
| Benchmark socket | LGA1156 |
| Benchmark date | 2010-01-01 |
| Benchmark TDP (W) | 87 |
| Benchmark base (MHz) | 3330 |
| Benchmark turbo (MHz) | 3600 |
| Benchmark cores | 2 |
| Benchmark threads per core | 2 |
| Benchmark threads | 4 |