Ryzen 9 3900XT vs Xeon Platinum 8280
Aggregate performance score
Primary details
Comparing Xeon Platinum 8280 and Ryzen 9 3900XT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 264 | 268 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.66 | 25.01 |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon Platinum | AMD Ryzen 9 |
| Power efficiency | 9.53 | 18.53 |
| Architecture codename | Cascade Lake-SP (2018) | Matisse 2 (2020) |
| Release date | 11 December 2018 (5 years ago) | 7 July 2020 (4 years ago) |
| Launch price (MSRP) | $10,009 | $499 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Ryzen 9 3900XT has 1407% better value for money than Xeon Platinum 8280.
Detailed specifications
Xeon Platinum 8280 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 | 28 (Octacosa-Core) | 12 (Dodeca-Core) |
| Threads | 56 | 24 |
| Base clock speed | 2.7 GHz | 3.8 GHz |
| Boost clock speed | 4 GHz | 4.7 GHz |
| Multiplier | 27 | no data |
| L1 cache | 64 KB (per core) | 96K (per core) |
| L2 cache | 1 MB (per core) | 512K (per core) |
| L3 cache | 38.5 MB (shared) | 64 MB |
| Chip lithography | 14 nm | 7 nm, 12 nm |
| Die size | no data | 74 mm2 |
| Maximum core temperature | 84 °C | no data |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | 8,000 million | 3,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon Platinum 8280 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 | 8 (Multiprocessor) | 1 |
| Socket | FCLGA3647 | AM4 |
| Power consumption (TDP) | 205 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Platinum 8280 and Ryzen 9 3900XT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Turbo Boost Max 3.0 | - | no data |
| Precision Boost 2 | no data | + |
| Deep Learning Boost | + | - |
Security technologies
Xeon Platinum 8280 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 Platinum 8280 and Ryzen 9 3900XT 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 Xeon Platinum 8280 and Ryzen 9 3900XT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2933 | DDR4-3200 |
| Maximum memory size | 1 TB | 128 GB |
| Max memory channels | 6 | 2 |
| Maximum memory bandwidth | 140.8 GB/s | 51.196 GB/s |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | - |
Peripherals
Specifications and connection of peripherals supported by Xeon Platinum 8280 and Ryzen 9 3900XT.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 48 | 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.
Pros & cons summary
| Performance score | 20.64 | 20.56 |
| Recency | 11 December 2018 | 7 July 2020 |
| Physical cores | 28 | 12 |
| Threads | 56 | 24 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 205 Watt | 105 Watt |
Xeon Platinum 8280 has a 0.4% higher aggregate performance score, and 133.3% more physical cores and 133.3% more threads.
Ryzen 9 3900XT, on the other hand, has an age advantage of 1 year, a 100% more advanced lithography process, and 95.2% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Xeon Platinum 8280 and Ryzen 9 3900XT.
Be aware that Xeon Platinum 8280 is a server/workstation processor while Ryzen 9 3900XT is a desktop one.
Should you still have questions on choice between Xeon Platinum 8280 and Ryzen 9 3900XT, ask them in Comments section, and we shall answer.
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