Intel Core i5-9400T vs Intel Core i7-8559U
Physical Specifications
| Socket | Intel Socket 1151 | Intel BGA 1356 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 14 nm | 14 nm |
| Transistors | unknown | unknown |
| Die size | unknown | 123 mm² |
| Package | FC-LGA1151 | FC-BGA1356 |
| tCaseMax | 72°C | 72°C |
Performance
| Frequency | 1800 MHz | 2.7 GHz |
|---|---|---|
| Turbo clock | up to 3.4 GHz | up to 4.5 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 18.0x | 27.0x |
| Multiplier unlocked | No | No |
| TDP | 35 W | 28 W |
Architecture Details
| Vertical Segment | Desktop | Mobile |
|---|---|---|
| Production status | Active | Active |
| Release date | Sep 1st, 2018 | Apr 5th, 2018 |
| Codename | Coffee Lake | Kaby Lake-R |
| Generation | Core i5 | Core i7 |
| Part | SR3X8 | unknown |
| Memory support | DDR4-2666 MHz Dual-channel | DDR4 |
| ECC memory | No | No |
| PCI Express | Gen 3, 16 Lanes(CPU only) | — |
Cores
| Total Cores | 6 | 4 |
|---|---|---|
| Total Threads | 6 | 8 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | Iris Pro Plus |
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 |
