Xeon E5420 vs Athlon II X4 740
Aggregate performance score
Athlon II X4 740 outperforms Xeon E5420 by a substantial 33% based on our aggregate benchmark results.
Primary details
Comparing Athlon II X4 740 and Xeon E5420 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2067 | 2298 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | Athlon | no data |
| Power efficiency | no data | 1.50 |
| Architecture codename | Piledriver | no data |
| Release date | 1 October 2012 (12 years ago) | 1 October 2007 (17 years ago) |
| Launch price (MSRP) | $71 | no data |
Detailed specifications
Athlon II X4 740 and Xeon E5420 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) | no data |
| Threads | 4 | no data |
| Base clock speed | 3.2 GHz | 2.5 GHz |
| Boost clock speed | 3.7 GHz | no data |
| L1 cache | 192 KB | no data |
| L2 cache | 4 MB | no data |
| L3 cache | no data | 12 MB L2 Cache |
| Chip lithography | 32 nm | 45 nm |
| Maximum core temperature | no data | 67 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.35V |
Compatibility
Information on Athlon II X4 740 and Xeon E5420 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 | 1 | no data |
| Socket | Socket FM2 | LGA771 |
| Power consumption (TDP) | 65 watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 740 and Xeon E5420. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | + |
Security technologies
Athlon II X4 740 and Xeon E5420 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 740 and Xeon E5420 are enumerated here.
| VT-x | no data | + |
| EPT | no data | - |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 1.69 | 1.27 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 65 Watt | 80 Watt |
Athlon II X4 740 has a 33.1% higher aggregate performance score, a 40.6% more advanced lithography process, and 23.1% lower power consumption.
The Athlon II X4 740 is our recommended choice as it beats the Xeon E5420 in performance tests.
Note that Athlon II X4 740 is a desktop processor while Xeon E5420 is a server/workstation one.
Should you still have questions on choice between Athlon II X4 740 and Xeon E5420, ask them in Comments section, and we shall answer.
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