Xeon E5-4620 v2 vs FX-4100
Aggregate performance score
Xeon E5-4620 v2 outperforms FX-4100 by a whopping 267% based on our aggregate benchmark results.
Primary details
Comparing FX-4100 and Xeon E5-4620 v2 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2044 | 1070 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 1.64 | 6.02 |
| Architecture codename | Zambezi (2011−2012) | no data |
| Release date | 12 October 2011 (12 years ago) | 1 January 2014 (10 years ago) |
Detailed specifications
FX-4100 and Xeon E5-4620 v2 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) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | 3.6 GHz | 2.6 GHz |
| Boost clock speed | 3.8 GHz | 3 GHz |
| Bus rate | no data | 7.2 GT/s |
| L1 cache | 192 KB | no data |
| L2 cache | 4096 KB | no data |
| L3 cache | 8192 KB | 20 MB Intel® Smart Cache |
| Chip lithography | 32 nm | 22 nm |
| Die size | 315 mm2 | no data |
| Maximum core temperature | 71 °C | 75 °C |
| Number of transistors | 1,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
| P0 Vcore voltage | Min: 1.1 V - Max: 1.4125 V | no data |
Compatibility
Information on FX-4100 and Xeon E5-4620 v2 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 | 4 |
| Socket | AM3+ | FCLGA2011 |
| Power consumption (TDP) | 95 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-4100 and Xeon E5-4620 v2. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| PAE | no data | 46 Bit |
| Status | no data | Discontinued |
Security technologies
FX-4100 and Xeon E5-4620 v2 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-4100 and Xeon E5-4620 v2 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by FX-4100 and Xeon E5-4620 v2. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600 |
| Maximum memory size | no data | 768 GB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 51.2 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by FX-4100 and Xeon E5-4620 v2.
| PCIe version | n/a | 3.0 |
| PCI Express lanes | no data | 40 |
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 | 1.71 | 6.28 |
| Recency | 12 October 2011 | 1 January 2014 |
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Chip lithography | 32 nm | 22 nm |
Xeon E5-4620 v2 has a 267.3% higher aggregate performance score, an age advantage of 2 years, 100% more physical cores and 300% more threads, and a 45.5% more advanced lithography process.
The Xeon E5-4620 v2 is our recommended choice as it beats the FX-4100 in performance tests.
Note that FX-4100 is a desktop processor while Xeon E5-4620 v2 is a server/workstation one.
Should you still have questions on choice between FX-4100 and Xeon E5-4620 v2, ask them in Comments section, and we shall answer.
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