Xeon E3-1220L v3 vs Pentium G645T
Aggregate performance score
Xeon E3-1220L v3 outperforms Pentium G645T by a moderate 13% 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 | 2849 | 2764 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 0.85 | 2.10 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Sandy Bridge (2011−2013) | Haswell-WS (2013−2014) |
| Release date | 2 September 2012 (12 years ago) | 2 June 2013 (12 years ago) |
Detailed specifications
Pentium G645T and Xeon E3-1220L v3 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 | 2 (Dual-core) | 2 (Dual-core) |
| Threads | 2 | 4 |
| Base clock speed | 2.5 GHz | 1.1 GHz |
| Boost clock speed | 2.5 GHz | 1.5 GHz |
| Bus rate | 5 GT/s | 5 GT/s |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 3 MB (shared) | 4096 KB (shared) |
| Chip lithography | 32 nm | 22 nm |
| Die size | 131 mm2 | 160 mm2 |
| Maximum core temperature | 65 °C | no data |
| Number of transistors | 504 million | 1,400 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium G645T and Xeon E3-1220L v3 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 | FCLGA1155 | FCLGA1150 |
| Power consumption (TDP) | 35 Watt | 13 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium G645T and Xeon E3-1220L v3. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | + |
| SIPP | - | + |
| FDI | + | no data |
| Fast Memory Access | + | + |
Security technologies
Pentium G645T and Xeon E3-1220L v3 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
| Identity Protection | - | + |
| OS Guard | no data | + |
| Anti-Theft | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium G645T and Xeon E3-1220L v3 are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium G645T and Xeon E3-1220L v3. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3, DDR4 |
| Maximum memory size | 32 GB | 32 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 17 GB/s | 25.6 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics for 2nd Generation Intel Processors | no data |
| Graphics max frequency | 1.1 GHz | no data |
Graphics interfaces
Available interfaces and connections of Pentium G645T and Xeon E3-1220L v3 integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium G645T and Xeon E3-1220L v3.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | 16 | 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.
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 | 0.71 | 0.80 |
| Recency | 2 September 2012 | 2 June 2013 |
| Threads | 2 | 4 |
| Chip lithography | 32 nm | 22 nm |
| Power consumption (TDP) | 35 Watt | 13 Watt |
Xeon E3-1220L v3 has a 12.7% higher aggregate performance score, an age advantage of 9 months, 100% more threads, a 45.5% more advanced lithography process, and 169.2% lower power consumption.
The Intel Xeon E3-1220L v3 is our recommended choice as it beats the Intel Pentium G645T in performance tests.
Note that Pentium G645T is a desktop processor while Xeon E3-1220L v3 is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
