Pentium Gold G5420 vs Xeon E5-2666 V3
Aggregate performance score
Xeon E5-2666 V3 outperforms Pentium Gold G5420 by a whopping 286% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5-2666 V3 and Pentium Gold G5420 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 778 | 1695 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 13.14 |
| Market segment | Server | Desktop processor |
| Series | no data | Intel Pentium Gold |
| Architecture codename | Haswell-EP (2014) | Coffee Lake (2017−2019) |
| Release date | 13 November 2014 (9 years ago) | 23 April 2019 (5 years ago) |
| Launch price (MSRP) | no data | $64 |
| Current price | $59 | $34 (0.5x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5-2666 V3 and Pentium Gold G5420 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 | 10 (Deca-Core) | 2 (Dual-core) |
| Threads | 20 | 4 |
| Base clock speed | 2.9 GHz | 3.8 GHz |
| Boost clock speed | 3.5 GHz | 3.8 GHz |
| Bus support | no data | 4 × 8 GT/s |
| L1 cache | 64K (per core) | 128 KB |
| L2 cache | 256K (per core) | 512 KB |
| L3 cache | 25 MB (shared) | 4 MB |
| Chip lithography | 22 nm | 14 nm |
| Die size | 356 mm2 | 126 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 2,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Xeon E5-2666 V3 and Pentium Gold G5420 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 | 2011-3 | FCLGA1151 |
| Power consumption (TDP) | 135 Watt | 54 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2666 V3 and Pentium Gold G5420. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| TSX | + | - |
| Idle States | no data | + |
| Thermal Monitoring | no data | + |
| SIPP | no data | - |
| Status | no data | Discontinued |
Security technologies
Xeon E5-2666 V3 and Pentium Gold G5420 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | no data | + |
| Identity Protection | no data | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2666 V3 and Pentium Gold G5420 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-2666 V3 and Pentium Gold G5420. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR42133 MHz Quad-channel | DDR4-2400 |
| Maximum memory size | no data | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 37.5 GB/s |
| ECC memory support | no data | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 610 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | no data | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.05 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Xeon E5-2666 V3 and Pentium Gold G5420 integrated GPUs.
| Number of displays supported | no data | 3 |
Graphics image quality
Maximum display resolutions supported by Xeon E5-2666 V3 and Pentium Gold G5420 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by Xeon E5-2666 V3 and Pentium Gold G5420 integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2666 V3 and Pentium Gold G5420.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 40 | 16 |
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.
Xeon E5-2666 V3 outperforms Pentium Gold G5420 by 286% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Xeon E5-2666 V3 outperforms Pentium Gold G5420 by 286% in Passmark.
Pros & cons summary
| Performance score | 9.26 | 2.40 |
| Recency | 13 November 2014 | 23 April 2019 |
| Physical cores | 10 | 2 |
| Threads | 20 | 4 |
| Chip lithography | 22 nm | 14 nm |
| Power consumption (TDP) | 135 Watt | 54 Watt |
The Xeon E5-2666 V3 is our recommended choice as it beats the Pentium Gold G5420 in performance tests.
Be aware that Xeon E5-2666 V3 is a server/workstation processor while Pentium Gold G5420 is a desktop one.
Should you still have questions on choice between Xeon E5-2666 V3 and Pentium Gold G5420, ask them in Comments section, and we shall answer.
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