Xeon E5420 vs A10 PRO-7850B
Aggregate performance score
A10 PRO-7850B outperforms Xeon E5420 by an impressive 71% based on our aggregate benchmark results.
Primary details
Comparing A10 PRO-7850B and Xeon E5420 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1840 | 2281 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 2.17 | 1.51 |
| Architecture codename | Kaveri (2014−2015) | no data |
| Release date | 31 July 2014 (10 years ago) | 1 October 2007 (17 years ago) |
Detailed specifications
A10 PRO-7850B 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 | 3.7 GHz | 2.5 GHz |
| Boost clock speed | 4 GHz | no data |
| L1 cache | 256 KB | no data |
| L2 cache | 4096 KB | no data |
| L3 cache | no data | 12 MB L2 Cache |
| Chip lithography | 28 nm | 45 nm |
| Die size | 245 mm2 | no data |
| Maximum core temperature | 72 °C | 67 °C |
| Maximum case temperature (TCase) | 74 °C | no data |
| Number of transistors | 2,411 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| VID voltage range | no data | 0.85V-1.35V |
Compatibility
Information on A10 PRO-7850B 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 | FM2+ | LGA771 |
| Power consumption (TDP) | 95 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A10 PRO-7850B and Xeon E5420. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| PowerTune | + | - |
| DualGraphics | + | - |
| TrueAudio | + | - |
| PowerNow | + | - |
| PowerGating | + | - |
| Out-of-band client management | + | - |
| VirusProtect | + | - |
| RAID | + | - |
| HSA | + | - |
| 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
A10 PRO-7850B 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 A10 PRO-7850B and Xeon E5420 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | + |
| EPT | no data | - |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A10 PRO-7850B and Xeon E5420. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-2133 | no data |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon R7 Graphics | no data |
| iGPU core count | 8 | no data |
| Number of pipelines | 512 | no data |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of A10 PRO-7850B and Xeon E5420 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A10 PRO-7850B and Xeon E5420 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 12 | no data |
Peripherals
Specifications and connection of peripherals supported by A10 PRO-7850B and Xeon E5420.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 16 | 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.
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.
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.
Pros & cons summary
| Performance score | 2.22 | 1.30 |
| Recency | 31 July 2014 | 1 October 2007 |
| Chip lithography | 28 nm | 45 nm |
| Power consumption (TDP) | 95 Watt | 80 Watt |
A10 PRO-7850B has a 70.8% higher aggregate performance score, an age advantage of 6 years, and a 60.7% more advanced lithography process.
Xeon E5420, on the other hand, has 18.8% lower power consumption.
The A10 PRO-7850B is our recommended choice as it beats the Xeon E5420 in performance tests.
Note that A10 PRO-7850B is a desktop processor while Xeon E5420 is a server/workstation one.
Should you still have questions on choice between A10 PRO-7850B and Xeon E5420, ask them in Comments section, and we shall answer.
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