AMD Athlon II X4 638 vs AMD Athlon X4 940
Physique
| Socket | AMD Socket FM1 | AMD Socket AM4 |
|---|---|---|
| Taille du processus | 32 nm | 28 nm |
| Transistors | 1,178 million | 1,178 million |
| Taille des matrices | 228 mm² | 246 mm² |
| Package | µPGA | µPGA |
| tCaseMax | — | 74°C |
Performance
| Fréquence | 2.7 GHz | 3.2 GHz |
|---|---|---|
| Turbo clock | — | up to 3.6 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplicateur | 27.0x | 32.0x |
| Multiplicateur débloqué | No | Yes |
| Tension | 1.4125 V | 1.475 V |
| TDP | 65 W | 65 W |
Architecture
| Marché | Desktop | Desktop |
|---|---|---|
| État de la production | unknown | Active |
| Date de sortie | Feb 6th, 2012 | Jul 27th, 2017 |
| Nom de code | Llano | Bristol Ridge |
| Génération | Athlon II X4 | Athlon |
| Part | AD638XOJZ43GXAD638XOJGXBOX | AD940XAGM44AB |
| Support mémoire | DDR3 Dual-channel | DDR4 Dual-channel |
| La mémoire du CEC | No | No |
Cœurs
| Nombre de cœurs | 4 | 4 |
|---|---|---|
| Nombre de threads | 4 | 4 |
| SMP # CPUs | 1 | 1 |
| Cartes graphiques intégrées | — | — |
Cache
| Cache L1 | 128K (per core) | 128K (per core) |
|---|---|---|
| Cache L2 | 1MB (per core) | 512K (per core) |
Caractéristiques
| 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 |
Remarques
| Remarques | — | This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |
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