AMD Phenom II X4 820 vs Intel Core 2 Quad Q9450
Physical Specifications
| Socket | AMD Socket AM3 | Intel Socket 775 |
|---|---|---|
| Process size | 45 nm | 45 nm |
| Transistors | 758 million | 820 million |
| Die size | 258 mm² | 2x 107 mm² |
| Package | µPGA | FC-LGA6 |
| Foundry | — | Intel |
| tCaseMax | — | 71°C |
Performance
| Frequency | 2.8 GHz | 2.666 GHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 200 MHz | 333 MHz |
| Multiplier | 14.0x | 8.0x |
| Multiplier unlocked | No | No |
| Voltage | 1.425 V | 1.11 V |
| TDP | 95 W | 95 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Sep 1st, 2009 | Mar 25th, 2008 |
| Codename | Deneb | Yorkfield |
| Generation | Phenom II X4 | Core 2 Quad |
| Part | HDX820WFK4FGIHDX820WFGIBOX | SLAWR |
| Memory support | DDR3 Dual-channel | DDR1, DDR2, DDR3 Dual-channel |
| ECC memory | No | No |
| PCI Express | Gen 2 | Gen 2 |
Cores
| Total Cores | 4 | 4 |
|---|---|---|
| Total Threads | 4 | 4 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 128K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 512K (per core) | 12MB (shared) |
| Cache L3 | 4MB (shared) | — |
Features & Technologies
| 3DNow! | Yes | — |
|---|---|---|
| AMD-V | Yes | — |
| AMD64 | Yes | — |
| EIST | — | Yes |
| Intel 64 | — | Yes |
| MMX | Yes | Yes |
| NX bit | Yes | — |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | — | Yes |
| SSE4A | Yes | — |
| TXT | — | Yes |
| VT-x | — | Yes |
| iAMT2 | — | Yes |
