Ryzen Threadripper 1900X vs Ultra 7 251HX
Aggregate performance score
Core Ultra 7 251HX outperforms Ryzen Threadripper 1900X by a whopping 189% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 244 | 1018 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.62 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Arrow Lake | AMD Ryzen Threadripper |
| Power efficiency | no data | 3.23 |
| Designer | Intel | AMD |
| Manufacturer | no data | GlobalFoundries |
| Architecture codename | Arrow Lake-HX (2025−2026) | Zen (2017−2020) |
| Release date | 1 April 2026 (less than a year ago) | 30 July 2017 (8 years ago) |
| Launch price (MSRP) | no data | $549 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of Core Ultra 7 251HX and Ryzen Threadripper 1900X: 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 | 18 (Octadeca-Core) | 8 (Octa-Core) |
| Threads | 18 | 16 |
| Base clock speed | 2.5 GHz | 3.8 GHz |
| Boost clock speed | 5.1 GHz | 3.8 GHz |
| Bus rate | no data | 4 × 8 GT/s |
| Multiplier | no data | 38 |
| L1 cache | no data | 768 KB |
| L2 cache | 30 MB | 4 MB |
| L3 cache | 30 MB | 16 MB |
| Chip lithography | 3 nm | 14 nm |
| Die size | no data | 213 mm2 |
| Number of transistors | no data | 9600 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Core Ultra 7 251HX and Ryzen Threadripper 1900X 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 | no data | 1 (Uniprocessor) |
| Socket | no data | SP3r2 |
| Power consumption (TDP) | no data | 180 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 251HX and Ryzen Threadripper 1900X. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 251HX and Ryzen Threadripper 1900X are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 251HX and Ryzen Threadripper 1900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 Quad-channel |
| Maximum memory size | no data | 2 TiB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 85.33 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Graphics 4-Core iGPU (Meteor / Arrow Lake) (300 - 1800 MHz) | - |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 7 251HX and Ryzen Threadripper 1900X.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 60 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 28.50 | 9.85 |
| Recency | 1 April 2026 | 30 July 2017 |
| Physical cores | 18 | 8 |
| Threads | 18 | 16 |
| Chip lithography | 3 nm | 14 nm |
Ultra 7 251HX has a 189% higher aggregate performance score, an age advantage of 8 years, 125% more physical cores and 13% more threads, and a 367% more advanced lithography process.
The Intel Core Ultra 7 251HX is our recommended choice as it beats the AMD Ryzen Threadripper 1900X in performance tests.
Be aware that Core Ultra 7 251HX is a notebook processor while Ryzen Threadripper 1900X is a desktop one.
Other comparisons
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