Xeon Silver 4309Y vs FX-8120
Aggregate performance score
Xeon Silver 4309Y outperforms FX-8120 by a whopping 192% based on our aggregate benchmark results.
Primary details
Comparing FX-8120 and Xeon Silver 4309Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1382 | 632 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 3.14 | 10.91 |
| Architecture codename | Zambezi (2011−2012) | Ice Lake-SP (2021) |
| Release date | 12 October 2011 (13 years ago) | 6 April 2021 (3 years ago) |
Detailed specifications
FX-8120 and Xeon Silver 4309Y 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 | 8 (Octa-Core) | 8 (Octa-Core) |
| Threads | 8 | 16 |
| Base clock speed | 3.1 GHz | 2.8 GHz |
| Boost clock speed | 4 GHz | 3.6 GHz |
| L1 cache | 384 KB | 64K (per core) |
| L2 cache | 8192 KB | 1 MB (per core) |
| L3 cache | 8192 KB | 12 MB (shared) |
| Chip lithography | 32 nm | 10 nm |
| Die size | 315 mm2 | no data |
| Maximum core temperature | 61 °C | no data |
| Maximum case temperature (TCase) | no data | 76 °C |
| Number of transistors | 1,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
| P0 Vcore voltage | Min: 1.0125 V - Max: 1.4125 V | no data |
Compatibility
Information on FX-8120 and Xeon Silver 4309Y 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 | 2 |
| Socket | AM3+ | FCLGA4189 |
| Power consumption (TDP) | 125 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-8120 and Xeon Silver 4309Y. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
FX-8120 and Xeon Silver 4309Y technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-8120 and Xeon Silver 4309Y 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-8120 and Xeon Silver 4309Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4-2667 |
| Maximum memory size | no data | 6 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by FX-8120 and Xeon Silver 4309Y.
| PCIe version | n/a | 4.0 |
| PCI Express lanes | no data | 64 |
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 | 4.15 | 12.11 |
| Recency | 12 October 2011 | 6 April 2021 |
| Threads | 8 | 16 |
| Chip lithography | 32 nm | 10 nm |
| Power consumption (TDP) | 125 Watt | 105 Watt |
Xeon Silver 4309Y has a 191.8% higher aggregate performance score, an age advantage of 9 years, 100% more threads, a 220% more advanced lithography process, and 19% lower power consumption.
The Xeon Silver 4309Y is our recommended choice as it beats the FX-8120 in performance tests.
Note that FX-8120 is a desktop processor while Xeon Silver 4309Y is a server/workstation one.
Should you still have questions on choice between FX-8120 and Xeon Silver 4309Y, ask them in Comments section, and we shall answer.
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