Ryzen 9 3900XT vs Xeon 5120
Primary details
Comparing Xeon 5120 and Ryzen 9 3900XT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 267 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 25.13 |
| Market segment | Server | Desktop processor |
| Series | no data | AMD Ryzen 9 |
| Power efficiency | no data | 18.54 |
| Architecture codename | Woodcrest (2006) | Matisse 2 (2020) |
| Release date | June 2006 (18 years ago) | 16 June 2020 (4 years ago) |
| Launch price (MSRP) | $45 | $499 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon 5120 and Ryzen 9 3900XT 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 | 2 (Dual-core) | 12 (Dodeca-Core) |
| Threads | 2 | 24 |
| Base clock speed | 1.86 GHz | 3.8 GHz |
| Boost clock speed | 1.87 GHz | 4.7 GHz |
| L1 cache | 0 KB | 768 KB |
| L2 cache | 4 MB | 6 MB |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 65 nm | 7 nm, 12 nm |
| Die size | no data | 74 mm2 |
| Maximum core temperature | 65 °C | no data |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | no data | 3,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
| VID voltage range | B2=1.0V-1.5V, G0=.85V-1.5V | no data |
Compatibility
Information on Xeon 5120 and Ryzen 9 3900XT 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 | 1 |
| Socket | LGA771 | AM4 |
| Power consumption (TDP) | 65 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 5120 and Ryzen 9 3900XT. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| 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 |
| Precision Boost 2 | no data | + |
Security technologies
Xeon 5120 and Ryzen 9 3900XT 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 Xeon 5120 and Ryzen 9 3900XT are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
| EPT | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon 5120 and Ryzen 9 3900XT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR4-3200 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 51.196 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Xeon 5120 and Ryzen 9 3900XT.
| PCIe version | no data | 4.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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
| Physical cores | 2 | 12 |
| Threads | 2 | 24 |
| Chip lithography | 65 nm | 7 nm |
| Power consumption (TDP) | 65 Watt | 105 Watt |
Xeon 5120 has 61.5% lower power consumption.
Ryzen 9 3900XT, on the other hand, has 500% more physical cores and 1100% more threads, and a 828.6% more advanced lithography process.
We couldn't decide between Xeon 5120 and Ryzen 9 3900XT. We've got no test results to judge.
Be aware that Xeon 5120 is a server/workstation processor while Ryzen 9 3900XT is a desktop one.
Should you still have questions on choice between Xeon 5120 and Ryzen 9 3900XT, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
