Xeon E3-1275: specs and benchmarks
Aggregate performance score
Xeon E3-1275 provides poor benchmark performance at 3.47% of a leader's which is a 96-core EPYC 9655P.
Summary
Intel started Xeon E3-1275 sales 3 April 2011 at a recommended price of $450. This is a Sandy Bridge architecture desktop processor primarily aimed at office systems. It has 4 cores and 8 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 3800 MHz and a locked multiplier.
Compatibility-wise, this is LGA1155 processor with a TDP of 95 Watt. It supports DDR3 memory.
Primary details
Xeon E3-1275 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 1549 | |
| Place by popularity | not in top-100 | |
| Cost-effectiveness evaluation | 1.08 | |
| Market segment | Server | |
| Power efficiency | 3.46 | of 100.00 (Ryzen Z1 Extreme) |
| Architecture codename | Sandy Bridge (2011−2013) | |
| Release date | 3 April 2011 (13 years ago) | |
| Launch price (MSRP) | $450 | of 17,906 (Xeon Platinum 8280L) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 4 (Quad-Core) | |
| Threads | 8 | |
| Base clock speed | 3.4 GHz | of 4.7 GHz (FX-9590) |
| Boost clock speed | 3.8 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 64 KB (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 256 KB (per core) | |
| L3 cache | 8 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | 32 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 216 mm2 | |
| Maximum core temperature | 73 °C | of 110 °C (Atom x7-E3950) |
| Number of transistors | 1,160 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - |
Compatibility
Information on Xeon E3-1275 compatibility with other computer components and devices: 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 | of 8 (Opteron 842) |
| Socket | LGA1155 | |
| Power consumption (TDP) | 95 Watt | of 500 Watt (Xeon 6960P) |
Technologies and extensions
Technological capabilities and additional instructions supported by Xeon E3-1275. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX | |
| AES-NI | + | |
| AVX | + | |
| Enhanced SpeedStep (EIST) | + | |
| Turbo Boost Technology | 2.0 | |
| Hyper-Threading Technology | + | |
| Idle States | + | |
| Thermal Monitoring | + | |
| Flex Memory Access | + | |
| Demand Based Switching | + | |
| FDI | + | |
| Fast Memory Access | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | |
| EDB | + | |
| Identity Protection | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + | |
| EPT | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Xeon E3-1275's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR3 | |
| Maximum memory size | 32 GB | of 6 TiB (EPYC 9124) |
| Max memory channels | 2 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 21 GB/s | of 460.8 GB/s (EPYC 9124) |
| ECC memory support | + |
Graphics specifications
General parameters of a GPU integrated into Xeon E3-1275.
| Integrated graphics card | Intel HD P3000 | |
| Quick Sync Video | + | |
| Clear Video HD | + | |
| Graphics max frequency | 1.35 GHz | |
| InTru 3D | + |
Graphics interfaces
Available interfaces and connections of Xeon E3-1275's integrated GPU.
| Number of displays supported | 2 |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 2.0 | of 5.0 (Core i9-12900K) |
| PCI Express lanes | 20 | of 128 (EPYC 7551P) |
Benchmark performance
Single-core and multi-core benchmark results of Xeon E3-1275. Overall benchmark performance 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.
Send your test results of Xeon E3-1275.
AMD equivalent
According to our data, the closest AMD alternative to Xeon E3-1275 is Opteron 6376, which is faster by 1% and higher by 10 positions in our ranking.
Here are some closest AMD rivals to Xeon E3-1275:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Xeon E3-1275, according to our PC configuration statistics.
These are the fastest graphics cards for Xeon E3-1275 in our user configuration statistics. There is a total of 115 configurations using Xeon E3-1275 in our database.
