Xeon 6776P vs Ryzen Threadripper 3990X
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 48 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 9.95 | no data |
| Market segment | Desktop processor | Server |
| Series | AMD Ryzen Threadripper | no data |
| Power efficiency | 6.86 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Matisse (2019−2020) | no data |
| Release date | 7 February 2020 (5 years ago) | 1 April 2025 (less than a year ago) |
| Launch price (MSRP) | $3,999 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen Threadripper 3990X and Xeon 6776P 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 | 64 (Tetrahexaconta-Core) | 64 (Tetrahexaconta-Core) |
| Threads | 128 | 128 |
| Base clock speed | 2.9 GHz | 2.3 GHz |
| Boost clock speed | 4.3 GHz | 3.9 GHz |
| Multiplier | 29 | no data |
| L1 cache | 96K (per core) | no data |
| L2 cache | 512K (per core) | no data |
| L3 cache | 256 MB | 336 MB |
| Chip lithography | 7 nm, 12 nm | no data |
| Die size | 74 mm2 | no data |
| Maximum core temperature | no data | 81 °C |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 3,800 million | no data |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper 3990X and Xeon 6776P 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 | TR4 | FCLGA4710 |
| Power consumption (TDP) | 280 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper 3990X and Xeon 6776P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Precision Boost 2 | + | no data |
| Deep Learning Boost | - | + |
Security technologies
Ryzen Threadripper 3990X and Xeon 6776P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper 3990X and Xeon 6776P 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 Ryzen Threadripper 3990X and Xeon 6776P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5(6400MT/s)MRDIMM(8000MT/s) |
| Maximum memory size | 256 GB | 4 TB |
| Max memory channels | 4 | 8 |
| Maximum memory bandwidth | 102.403 GB/s | no data |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper 3990X and Xeon 6776P.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | no data | 88 |
Pros & cons summary
| Recency | 7 February 2020 | 1 April 2025 |
| Power consumption (TDP) | 280 Watt | 350 Watt |
Ryzen Threadripper 3990X has 25% lower power consumption.
Xeon 6776P, on the other hand, has an age advantage of 5 years.
We couldn't decide between AMD Ryzen Threadripper 3990X and Intel Xeon 6776P. We've got no test results to judge.
Note that Ryzen Threadripper 3990X is a desktop processor while Xeon 6776P is a server/workstation one.
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