AMD Athlon II X4 638 vs AMD Athlon X4 940
Fisico
| Presa | AMD Socket FM1 | AMD Socket AM4 |
|---|---|---|
| Dimensione del processo | 32 nm | 28 nm |
| Transistor | 1,178 million | 1,178 million |
| Dimensione stampo | 228 mm² | 246 mm² |
| Pacchetto | µPGA | µPGA |
| tCaseMax | — | 74°C |
Prestazione
| Frequenza | 2.7 GHz | 3.2 GHz |
|---|---|---|
| Turbo clock | — | up to 3.6 GHz |
| Clock di base | 100 MHz | 100 MHz |
| Moltiplicatore | 27.0x | 32.0x |
| Moltiplicatore sbloccato | No | Yes |
| Voltaggio | 1.4125 V | 1.475 V |
| TDP | 65 W | 65 W |
Architettura
| Mercato | Desktop | Desktop |
|---|---|---|
| Stato di produzione | unknown | Active |
| Data di rilascio | Feb 6th, 2012 | Jul 27th, 2017 |
| Nome in codice | Llano | Bristol Ridge |
| Generazione | Athlon II X4 | Athlon |
| Parte | AD638XOJZ43GXAD638XOJGXBOX | AD940XAGM44AB |
| Supporto memoria | DDR3 Dual-channel | DDR4 Dual-channel |
| Memoria ECC | No | No |
Core
| Numero di core | 4 | 4 |
|---|---|---|
| Numero di threads | 4 | 4 |
| SMP # CPUs | 1 | 1 |
| Grafica integrata | — | — |
Cache
| Cache L1 | 128K (per core) | 128K (per core) |
|---|---|---|
| Cache L2 | 1MB (per core) | 512K (per core) |
Caratteristiche
| 3DNow! | Yes | Yes |
|---|---|---|
| AES | — | Yes |
| AMD-V | Yes | Yes |
| AMD64 | Yes | Yes |
| AVX | — | Yes |
| AVX2 | — | Yes |
| BMI1 | — | Yes |
| BMI2 | — | Yes |
| EVP | — | Yes |
| F16C | — | Yes |
| FMA3 | — | Yes |
| FMA4 | — | Yes |
| MMX | Yes | Yes |
| NX bit | Yes | — |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4 | — | Yes |
| SSE4.1 | — | Yes |
| SSE4.2 | — | Yes |
| SSE4A | Yes | Yes |
| TBM | — | Yes |
| Turbo Core | — | Yes |
| XOP | — | Yes |
Note
| Note | — | This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |
|---|
