AMD Athlon II X4 640 vs AMD FX-4350
Physical Specifications
| Socket | AMD Socket AM3 | AMD Socket AM3+ |
|---|---|---|
| Process size | 45 nm | 32 nm |
| Transistors | 300 million | 1,200 million |
| Die size | 169 mm² | 315 mm² |
| Package | µPGA | FC-PGA |
Performance
| Frequency | 3 GHz | 4.2 GHz |
|---|---|---|
| Turbo clock | — | up to 4.3 GHz |
| Base clock | 200 MHz | 200 MHz |
| Multiplier | 15.0x | 19.5x |
| Multiplier unlocked | No | No |
| Voltage | 1.4 V | 1.4 V |
| TDP | 95 W | 125 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | Active |
| Release date | May 11th, 2010 | Apr 29th, 2013 |
| Codename | Propus | Vishera |
| Generation | Athlon II X4 | FX |
| Part | ADX640WFK42GMADX640WFGMBOX | FD4350FRW4KHK |
| Memory support | DDR3 Dual-channel | 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) | 288K |
|---|---|---|
| Cache L2 | 512K (per core) | 4MB |
| Cache L3 | — | 8MB (shared) |
Features & Technologies
| 3DNow! | Yes | — |
|---|---|---|
| AES | — | Yes |
| AMD-V | Yes | Yes |
| AMD64 | Yes | Yes |
| AVX | — | Yes |
| CLMUL | — | Yes |
| CVT16 | — | Yes |
| EVP | — | Yes |
| FMA4 | — | Yes |
| HT3.1 | — | Yes |
| MMX | Yes | Yes |
| NX bit | Yes | — |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | — | Yes |
| SSE4.2 | — | Yes |
| SSE4A | Yes | Yes |
| SSSE3 | — | Yes |
| Turbo Core | — | Yes |
| XOP | — | Yes |
