Intel Core i5-9400F vs Intel Core i7-7740X
Physical Specifications
| Socket | Intel Socket 1151 | Intel Socket 2066 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 14 nm | 14 nm |
| Transistors | unknown | unknown |
| Die size | unknown | unknown |
| Package | FC-LGA1151 | FC-LGA2066 |
| tCaseMax | 72°C | 72°C |
Performance
| Frequency | 2.9 GHz | 4.3 GHz |
|---|---|---|
| Turbo clock | up to 4.1 GHz | up to 4.6 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 29.0x | 43.0x |
| Multiplier unlocked | No | Yes |
| TDP | 65 W | 112 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | Active | Active |
| Release date | Jan 8th, 2019 | Jun 26th, 2017 |
| Codename | Coffee Lake | Kaby Lake-X |
| Generation | Core i5 | Core i7 |
| Part | BX80684I59400FBXC80684I59400FCM8068403358819SRF6M | unknown |
| Memory support | DDR4-2666 MHz Dual-channel | DDR4 Quad-channel |
| ECC memory | No | No |
| PCI Express | Gen 3, 16 Lanes(CPU only) | Gen 3 |
Cores
| Total Cores | 6 | 4 |
|---|---|---|
| Total Threads | 6 | 8 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 9MB (shared) | 8MB (shared) |
Features & Technologies
| AES-NI | Yes | Yes |
|---|---|---|
| AVX | Yes | Yes |
| AVX2 | Yes | Yes |
| BMI1 | Yes | Yes |
| BMI2 | Yes | Yes |
| Boost 2.0 | Yes | Yes |
| CLMUL | Yes | Yes |
| EIST | Yes | Yes |
| F16C | Yes | Yes |
| FMA3 | Yes | Yes |
| HTT | — | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSSE3 | Yes | Yes |
| TSX | Yes | Yes |
| TXT | Yes | Yes |
| VT-d | Yes | Yes |
| VT-x | Yes | Yes |
| XD bit | Yes | Yes |
Notes
| Notes | — | This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |
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