Intel Core i7-3770K vs Intel Core i7-3770S: comparison
Comparison of Intel Core i7-3770K and Intel Core i7-3770S: key differences and a full specification table.
Key differences
Intel Core i7-3770K has a higher base clock (3.5 GHz vs 3.1 GHz).
At the same time, Intel Core i7-3770S has a lower TDP (65 W vs 77 W).
Both processors match on: core count (4), thread count (8), maximum clock (3.9 GHz), L3 cache (8 MB), process node (22 nm), maximum memory size (32 GB), memory channels (2), PCIe version (3), maximum integrated graphics clock (1.15 GHz).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | Intel Core i7-3770K | Intel Core i7-3770S |
|---|---|---|
| Cores / threads | 4 / 8 | 4 / 8 |
| Max boost clock | 3.9 GHz | 3.9 GHz |
| L3 cache | 8 MB | 8 MB |
| TDP | 77 W | 65 W |
| Process | 22 nm | 22 nm |
| Integrated graphics | Intel HD Graphics 4000 | Intel HD Graphics 4000 |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Core i7-3770K | Intel Core i7-3770S |
|---|---|---|
| General | ||
| Model | i7-3770K | i7-3770S |
| Codename | Ivy Bridge | Ivy Bridge |
| Segment | Desktop | Desktop |
| Product line | Legacy Intel Core Processors | Legacy Intel Core Processors |
| Process | 22 nm | 22 nm |
| Launch date | Q2 2012 | Q2 2012 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Lifetime | End of Servicing Lifetime |
| End of servicing updates | 12/31/2019 | 12/31/2019 |
| Embedded options available | No | No |
| CPU | ||
| Cores | 4 | 4 |
| Threads | 8 | 8 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 3.5 GHz | 3.1 GHz |
| Max boost clock | 3.9 GHz | 3.9 GHz |
| Turbo Boost 2.0 frequency | 3.9 GHz | 3.9 GHz |
| L3 cache | 8 MB | 8 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 77 W | 65 W |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX | SSE4.1, SSE4.2, AVX |
| Memory | ||
| Max memory size | 32 GB | 32 GB |
| Memory types | DDR3 | DDR3 |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 25.6 GB/s | 25.6 GB/s |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | Intel HD Graphics 4000 | Intel HD Graphics 4000 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 650 MHz | 650 MHz |
| Graphics max frequency | 1.15 GHz | 1.15 GHz |
| Max displays | 3 | 3 |
| Graphics device ID | 0x162 | 0x162 |
| Quick Sync Video | Yes | Yes |
| InTru 3D | Yes | Yes |
| Flexible Display Interface | Yes | Yes |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| PCI Express configurations | up to 1x16, 2x8, 1x8 & 2x4 | up to 1x16, 2x8, 1x8 & 2x4 |
| Package and thermal | ||
| Sockets supported | FCLGA1155 | FCLGA1155 |
| Max CPU configuration | 1 | 1 |
| Package size | 37.5mm x 37.5mm | 37.5mm x 37.5mm |
| TCASE | 67.4 °C | 69.1 °C |
| Thermal solution specification | 2011D | 2011C |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | No | Yes |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Secure Key | Yes | Yes |
| Anti-Theft Technology | Yes | Yes |
| vPro Eligibility | — | Intel vPro Platform |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | Yes | Yes |
| Transactional Synchronization Extensions | No | No |