Xeon 656 vs Arc G3
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 496 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Panther Lake (2026) | Granite Rapids (2024−2026) |
| Release date | 28 May 2026 (recently) | 2 February 2026 (less than a year ago) |
| Launch price (MSRP) | no data | $1,399 |
Detailed specifications
Basic parameters of Arc G3 and Xeon 656: 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 | 14 (Tetradeca-Core) | 20 (Icosa-Core) |
| Performance-cores | no data | 20 |
| Threads | 14 | 40 |
| Base clock speed | 1.9 GHz | 2.9 GHz |
| Boost clock speed | 4.6 GHz | 4.8 GHz |
| Bus rate | no data | 0 GT/s |
| L1 cache | 192 KB (per core) | 112 KB (per core) |
| L2 cache | 2.5 MB (per core) | 2 MB (per core) |
| L3 cache | 18 MB (shared) | 72 MB (shared) |
| Chip lithography | 3 nm | Intel 3 nm |
| Die size | no data | 2x 598 mm2 |
| Maximum case temperature (TCase) | no data | 74 °C |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Arc G3 and Xeon 656 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 | Intel BGA 2540 | FCLGA4710 |
| Power consumption (TDP) | 25 Watt | 210 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Arc G3 and Xeon 656. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Arc G3 and Xeon 656 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Arc G3 and Xeon 656 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Arc G3 and Xeon 656. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | LPDDR5X | DDR5(6400MT/s) |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Arc B370 | N/A |
Peripherals
Specifications and connection of peripherals supported by Arc G3 and Xeon 656.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 12 | 128 |
Pros & cons summary
| Recency | 28 May 2026 | 2 February 2026 |
| Physical cores | 14 | 20 |
| Threads | 14 | 40 |
| Power consumption (TDP) | 25 Watt | 210 Watt |
Arc G3 has an age advantage of 3 months, and 740% lower power consumption.
Xeon 656, on the other hand, has 43% more physical cores and 186% more threads.
We couldn't decide between Intel Arc G3 and Intel Xeon 656. We've got no test results to judge.
Be aware that Arc G3 is a notebook processor while Xeon 656 is a server/workstation one.
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