Ultra 7 155U vs Xeon Gold 6434
Aggregate performance score
Xeon Gold 6434 outperforms Core Ultra 7 155U by a considerable 48% based on our aggregate benchmark results.
Primary details
Comparing Xeon Gold 6434 and Core Ultra 7 155U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 433 | 734 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 14.19 | no data |
| Market segment | Server | Laptop |
| Series | no data | Intel Meteor Lake-U |
| Power efficiency | 7.59 | 66.62 |
| Architecture codename | Sapphire Rapids (2023−2024) | Meteor Lake-P (2023) |
| Release date | 10 January 2023 (1 year ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | $2,607 | $490 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon Gold 6434 and Core Ultra 7 155U 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) | 12 (Dodeca-Core) |
| Threads | 16 | 14 |
| Base clock speed | 3.7 GHz | 1.7 GHz |
| Boost clock speed | 4.1 GHz | 4.8 GHz |
| L1 cache | 80K (per core) | 112 KB (per core) |
| L2 cache | 2 MB (per core) | 2 MB (per core) |
| L3 cache | 22.5 MB | 12 MB (shared) |
| Chip lithography | Intel 7 nm | Intel 4 nm |
| Maximum core temperature | no data | 110 °C |
| Maximum case temperature (TCase) | 64 °C | no data |
| 64 bit support | + | + |
Compatibility
Information on Xeon Gold 6434 and Core Ultra 7 155U 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 | 2 | 1 |
| Socket | FCLGA4677 | FCBGA2049 |
| Power consumption (TDP) | 195 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Gold 6434 and Core Ultra 7 155U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Turbo Boost Max 3.0 | no data | - |
| Deep Learning Boost | + | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, ONNX RT |
Security technologies
Xeon Gold 6434 and Core Ultra 7 155U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | no data | + |
| SGX | Yes with Intel® SPS | no data |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Gold 6434 and Core Ultra 7 155U are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6434 and Core Ultra 7 155U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800, DDR5-4400 | DDR5 |
| Maximum memory size | 4 TB | 96 GB |
| Max memory channels | 8 | 2 |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.95 GHz |
Graphics interfaces
Available interfaces and connections of Xeon Gold 6434 and Core Ultra 7 155U integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon Gold 6434 and Core Ultra 7 155U integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Xeon Gold 6434 and Core Ultra 7 155U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.2 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Xeon Gold 6434 and Core Ultra 7 155U.
| PCIe version | 5 | 4.0 |
| PCI Express lanes | 80 | 12 |
| PCI support | 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.
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 | 15.64 | 10.56 |
| Recency | 10 January 2023 | 14 December 2023 |
| Physical cores | 8 | 12 |
| Threads | 16 | 14 |
| Power consumption (TDP) | 195 Watt | 15 Watt |
Xeon Gold 6434 has a 48.1% higher aggregate performance score, and 14.3% more threads.
Ultra 7 155U, on the other hand, has an age advantage of 11 months, 50% more physical cores, and 1200% lower power consumption.
The Xeon Gold 6434 is our recommended choice as it beats the Core Ultra 7 155U in performance tests.
Be aware that Xeon Gold 6434 is a server/workstation processor while Core Ultra 7 155U is a notebook one.
Should you still have questions on choice between Xeon Gold 6434 and Core Ultra 7 155U, 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.
