Phenom II X4 955 (125W) vs Xeon L5408
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2686 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Power efficiency | 2.68 | no data |
| Designer | Intel | AMD |
| Manufacturer | Intel | no data |
| Architecture codename | Harpertown (2007−2008) | Deneb (2009−2011) |
| Release date | 27 February 2008 (17 years ago) | 1 April 2009 (16 years ago) |
Detailed specifications
Xeon L5408 and Phenom II X4 955 (125W) basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 2.133 GHz | 3.2 GHz |
| Boost clock speed | 0.13 GHz | 3.2 GHz |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 6 MB (per die) | 512 KB (per core) |
| L3 cache | no data | 6 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | 2x 107 mm2 | 258 mm2 |
| Maximum case temperature (TCase) | 87 °C | no data |
| Number of transistors | 820 million | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on Xeon L5408 and Phenom II X4 955 (125W) compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 2 | 1 |
| Socket | 771 | AM3 |
| Power consumption (TDP) | 40 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5408 and Phenom II X4 955 (125W). You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | no data |
Security technologies
Xeon L5408 and Phenom II X4 955 (125W) technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5408 and Phenom II X4 955 (125W) are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5408 and Phenom II X4 955 (125W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2, DDR3 Depends on motherboard | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Xeon L5408 and Phenom II X4 955 (125W).
| PCIe version | 2.0 | 2.0 |
Pros & cons summary
| Recency | 27 February 2008 | 1 April 2009 |
| Power consumption (TDP) | 40 Watt | 125 Watt |
Xeon L5408 has 212.5% lower power consumption.
Phenom II X4 955 (125W), on the other hand, has an age advantage of 1 year.
We couldn't decide between Intel Xeon L5408 and AMD Phenom II X4 955 (125W). We've got no test results to judge.
Be aware that Xeon L5408 is a server/workstation processor while Phenom II X4 955 (125W) is a desktop one.
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