Intel Core i7-4578U vs Intel Core i7-4770HQ: comparison
Comparison of Intel Core i7-4578U and Intel Core i7-4770HQ: key differences and a full specification table.
Key differences
Intel Core i7-4578U has a higher base clock (3 GHz vs 2.2 GHz), a higher maximum clock (3.5 GHz vs 3.4 GHz) and a lower TDP (28 W vs 47 W).
At the same time, Intel Core i7-4770HQ has more cores (4 vs 2), more threads (8 vs 4), a higher maximum memory size (32 GB vs 16 GB) and a newer PCIe version (3 vs 2).
Both processors match on: process node (22 nm), memory channels (2), maximum integrated graphics clock (1.2 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 i7-4578U | Intel Core i7-4770HQ |
|---|---|---|
| Cores / threads | 2 / 4 | 4 / 8 |
| Max boost clock | 3.5 GHz | 3.4 GHz |
| TDP | 28 W | 47 W |
| Process | 22 nm | 22 nm |
| Integrated graphics | Intel Iris Graphics 5100 | Intel Iris Pro Graphics 5200 |
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 i7-4578U | Intel Core i7-4770HQ |
|---|---|---|
| General | ||
| Model | i7-4578U | i7-4770HQ |
| Codename | Haswell | Crystal Well |
| Segment | Mobile | Mobile |
| Product line | Процессоры Intel Core i7 4-го поколения | Процессоры Intel Core i7 4-го поколения |
| Process | 22 nm | 22 nm |
| Launch date | Q3 2014 | Q3 2014 |
| Status | Discontinued | Discontinued |
| Servicing status | End of Servicing Lifetime | — |
| End of servicing updates | 06/30/2021 | — |
| Embedded options available | No | No |
| CPU | ||
| Cores | 2 | 4 |
| Threads | 4 | 8 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 3 GHz | 2.2 GHz |
| Max boost clock | 3.5 GHz | 3.4 GHz |
| Turbo Boost 2.0 frequency | 3.5 GHz | 3.4 GHz |
| Cache (level unspecified) | 4 MB | 6 MB |
| Bus speed | 5 GT/s | 5 GT/s |
| TDP | 28 W | 47 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, AVX2 | SSE4.1, SSE4.2, AVX2 |
| Memory | ||
| Max memory size | 16 GB | 32 GB |
| Memory types | DDR3L, LPDDR3 | DDR3L |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 25.6 GB/s | 25.6 GB/s |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | Intel Iris Graphics 5100 | Intel Iris Pro Graphics 5200 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 200 MHz | 200 MHz |
| Graphics max frequency | 1.2 GHz | 1.2 GHz |
| Graphics video max memory | 2 GB | 2 GB |
| Max displays | 3 | 3 |
| Max resolution (DP) | 3200x2000@60Hz | 3840x2160@60Hz |
| Max resolution (HDMI) | 3200x2000@60Hz | 3840x2160@30Hz |
| DirectX | 12 | 12 |
| OpenGL | 4.3 | 4.3 |
| Graphics device ID | 0xA2E | 0xD26 |
| Quick Sync Video | Yes | Yes |
| Clear Video HD | Yes | Yes |
| Graphics output | eDP/DP/HDMI/VGA | eDP/DP/HDMI/VGA |
| InTru 3D | Yes | Yes |
| Flexible Display Interface | Yes | Yes |
| Max resolution (VGA) | — | 2880x1800@60Hz |
| I/O and interfaces | ||
| PCI Express revision | 2 | 3 |
| PCI Express lanes | 12 | 16 |
| PCI Express configurations | 4x1, 2x4 | 1x16 or 2x8 or 1x8 2x4 |
| Package and thermal | ||
| Sockets supported | FCBGA1168 | FCBGA1364 |
| Max CPU configuration | 1 | 1 |
| Package size | 40mm x 24mm x 1.5mm | 37.5mm x 32mm x 1.65mm |
| TJUNCTION | 100 °C | 100 °C |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | Yes |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | No | Yes |
| Secure Key | Yes | Yes |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | Yes | Yes |
| Transactional Synchronization Extensions | No | Yes |