AMD Phenom II X3 B77 vs AMD Phenom X4 9950 BE (125W)
Physical Specifications
| Socket | AMD Socket AM3 | AMD Socket AM2+ |
|---|---|---|
| Process size | 45 nm | 65 nm |
| Transistors | 758 million | 450 million |
| Die size | 258 mm² | 285 mm² |
| Package | µPGA | µPGA |
Performance
| Frequency | 3.2 GHz | 2.6 GHz |
|---|---|---|
| Turbo clock | — | — |
| Base clock | 200 MHz | 200 MHz |
| Multiplier | 16.0x | 13.0x |
| Multiplier unlocked | No | Yes |
| Voltage | 1.425 V | 1.3 V |
| TDP | 95 W | 125 W |
Architecture Details
| Vertical Segment | Desktop | Desktop |
|---|---|---|
| Production status | End-of-life | End-of-life |
| Release date | May 11th, 2010 | Oct 1st, 2008 |
| Codename | Heka | Agena |
| Generation | Phenom II X3 | Phenom X4 |
| Part | HDXB77WFK3DGM | HD995ZXAJ4BGH |
| Memory support | DDR3 Dual-channel | unknown Dual-channel |
| ECC memory | No | No |
| PCI Express | Gen 2 | Gen 2 |
Cores
| Total Cores | 3 | 4 |
|---|---|---|
| Total Threads | 3 | 4 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 128K (per core) | 128K (per core) |
|---|---|---|
| Cache L2 | 512K (per core) | 512K (per core) |
| Cache L3 | 6MB (shared) | 2MB (shared) |
Notes
| Notes | AMD Business Class processor, availability guaranteed for 24 months after release. | This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Black Edition label. |
|---|
Features & Technologies
| 3DNow! | Yes | Yes |
|---|---|---|
| AMD-V | Yes | Yes |
| AMD64 | Yes | Yes |
| CnQ | — | Yes |
| HT3.0 | — | Yes |
| MMX | Yes | Yes |
| NX bit | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4A | Yes | Yes |
