Intel Core i7-4820K vs Intel Xeon E3-1280 v3
Physical Specifications
| Socket | Intel Socket 2011 | Intel Socket 1150 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 22 nm | 22 nm |
| Transistors | 1,860 million | 1,400 million |
| Die size | 257 mm² | 160 mm² |
| Package | FC-LGA10 | FC-LGA12C |
Performance
| Frequency | 3.7 GHz | 3.6 GHz |
|---|---|---|
| Turbo clock | up to 3.9 GHz | up to 4 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 37.0x | 36.0x |
| Multiplier unlocked | Yes | No |
| Voltage | 1.35 V | — |
| TDP | 130 W | 82 W |
Architecture Details
| Vertical Segment | Desktop | Server/Workstation |
|---|---|---|
| Production status | unknown | unknown |
| Release date | Sep 1st, 2013 | Jun 2nd, 2013 |
| Codename | Ivy Bridge-E | Haswell-WS |
| Generation | Core i7 | Xeon E3 |
| Part | SR1AU | SR150 |
| Memory support | DDR3 Quad-channel | DDR3, DDR4 Dual-channel |
| ECC memory | No | Yes |
| PCI Express | Gen 3 | Gen 3 |
Cores
| Total Cores | 4 | 4 |
|---|---|---|
| Total Threads | 8 | 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 | 10MB (shared) | 8MB (shared) |
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. | — |
|---|
Features & Technologies
| AES-NI | Yes | Yes |
|---|---|---|
| AVX | Yes | Yes |
| AVX2 | — | Yes |
| BMI1 | — | Yes |
| BMI2 | — | Yes |
| ECC | — | Yes |
| EIST | Yes | Yes |
| F16C | — | Yes |
| FMA3 | — | Yes |
| HTT | Yes | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSSE3 | Yes | Yes |
| TXT | — | Yes |
| VT-d | — | Yes |
| VT-x | Yes | Yes |
| XD bit | Yes | Yes |
| vPro | — | Yes |
| x8 SDDC | — | Yes |
