AMD Athlon 650 vs AMD Phenom II X4 840
Physical Specifications
| Socket | AMD Socket A | AMD Socket AM3 |
|---|---|---|
| Process size | 180 nm | 45 nm |
| Transistors | 37 million | 300 million |
| Die size | 120 mm² | 169 mm² |
| Package | — | µPGA |
Performance
| Frequency | 650 MHz | 3.2 GHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 100 MHz | 200 MHz |
| Multiplier | 6.5x | 16.0x |
| Multiplier unlocked | No | No |
| Voltage | 1.75 V | 1.4 V |
| TDP | 38 W | 95 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | Jun 5th, 2000 | Jan 4th, 2011 |
| Codename | Thunderbird | Propus |
| Generation | Athlon Model 4 | Phenom II X4 |
| Part | A0650AMT3BA0650APT3B | HDX840WFK42GMHDX840WFGMBOX |
| Memory support | DDR1 | DDR3 Dual-channel |
| ECC memory | No | No |
| PCI Express | — | Gen 2 |
Cores
| Total Cores | 1 | 4 |
|---|---|---|
| Total Threads | 1 | 4 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 128K | 128K (per core) |
|---|---|---|
| Cache L2 | 256K | 512K (per core) |
Features & Technologies
| 3DNow! | — | Yes |
|---|---|---|
| AMD-V | — | Yes |
| AMD64 | — | Yes |
| Enhanced 3DNow! | Yes | — |
| MMX | Yes | Yes |
| NX bit | — | Yes |
| SSE | — | Yes |
| SSE2 | — | Yes |
| SSE3 | — | Yes |
| SSE4A | — | Yes |
