Xeon E5450 vs Athlon II X4 651
Aggregated performance score
Athlon II X4 651 outperforms Xeon E5450 by 40% based on our aggregated benchmark results.
Primary details
Comparing Athlon II X4 651 and Xeon E5450 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1696 | 1959 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.26 | 0.05 |
| Market segment | Desktop processor | Server |
| Architecture codename | Llano (2011−2012) | no data |
| Release date | 14 November 2011 (12 years ago) | 1 October 2007 (16 years ago) |
| Current price | $234 | $62 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Athlon II X4 651 has 420% better value for money than Xeon E5450.
Detailed specifications
Athlon II X4 651 and Xeon E5450 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 GHz | 3 GHz |
| Boost clock speed | 3 GHz | no data |
| L1 cache | 128 KB (per core) | no data |
| L2 cache | 1 MB (per core) | no data |
| L3 cache | 0 KB | 12 MB L2 Cache |
| Chip lithography | 32 nm | 45 nm |
| Die size | 228 mm2 | no data |
| Maximum core temperature | no data | 67 °C |
| Number of transistors | 1,178 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
| VID voltage range | no data | 0.85V-1.35V |
Compatibility
Information on Athlon II X4 651 and Xeon E5450 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 | FM1 | LGA771 |
| Power consumption (TDP) | 100 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 651 and Xeon E5450. 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 | no data | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | + |
| Status | no data | Discontinued |
Security technologies
Athlon II X4 651 and Xeon E5450 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 651 and Xeon E5450 are enumerated here.
| AMD-V | + | no data |
| VT-x | no data | + |
| EPT | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 651 and Xeon E5450. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | 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.
Athlon II X4 651 outperforms Xeon E5450 by 40% based on our aggregated benchmark results.
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.
Benchmark coverage: 68%
Athlon II X4 651 outperforms Xeon E5450 by 39% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Xeon E5450 outperforms Athlon II X4 651 by 15% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Athlon II X4 651 outperforms Xeon E5450 by 2% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 2.32 | 1.66 |
| Recency | 14 November 2011 | 1 October 2007 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 100 Watt | 80 Watt |
The Athlon II X4 651 is our recommended choice as it beats the Xeon E5450 in performance tests.
Be aware that Athlon II X4 651 is a desktop processor while Xeon E5450 is a server/workstation one.
Should you still have questions on choice between Athlon II X4 651 and Xeon E5450, ask them in Comments section, and we shall answer.
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