Opteron 4334 vs Xeon E5640
Aggregate performance score
Opteron 4334 outperforms Xeon E5640 by a minimal 4% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5640 and Opteron 4334 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1773 | 1743 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.85 | no data |
| Market segment | Server | Server |
| Power efficiency | 2.82 | 2.48 |
| Architecture codename | Westmere-EP (2010−2011) | Seoul (2012) |
| Release date | 16 March 2010 (14 years ago) | 4 December 2012 (11 years ago) |
| Launch price (MSRP) | $49 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5640 and Opteron 4334 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 | 4 (Quad-Core) | 6 (Hexa-Core) |
| Threads | 8 | 6 |
| Base clock speed | 2.66 GHz | 3.1 GHz |
| Boost clock speed | 2.93 GHz | 3.5 GHz |
| L1 cache | 64 KB (per core) | 288 KB |
| L2 cache | 256 KB (per core) | 6144 KB |
| L3 cache | 12 MB (shared) | 8192 KB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 239 mm2 | 315 mm2 |
| Maximum core temperature | 78 °C | no data |
| Number of transistors | 1,170 million | 1,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon E5640 and Opteron 4334 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 | 2 |
| Socket | FCLGA1366,LGA1366 | C32 |
| Power consumption (TDP) | 80 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5640 and Opteron 4334. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | + | + |
| FMA | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
Security technologies
Xeon E5640 and Opteron 4334 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5640 and Opteron 4334 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5640 and Opteron 4334. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 288 GB | no data |
| Max memory channels | 3 | no data |
| Maximum memory bandwidth | 25.6 GB/s | no data |
| ECC memory support | + | - |
Peripherals
Specifications and connection of peripherals supported by Xeon E5640 and Opteron 4334.
| PCIe version | 2.0 | no data |
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 | 2.47 | 2.58 |
| Recency | 16 March 2010 | 4 December 2012 |
| Physical cores | 4 | 6 |
| Threads | 8 | 6 |
| Power consumption (TDP) | 80 Watt | 95 Watt |
Xeon E5640 has 33.3% more threads, and 18.8% lower power consumption.
Opteron 4334, on the other hand, has a 4.5% higher aggregate performance score, an age advantage of 2 years, and 50% more physical cores.
Given the minimal performance differences, no clear winner can be declared between Xeon E5640 and Opteron 4334.
Should you still have questions on choice between Xeon E5640 and Opteron 4334, ask them in Comments section, and we shall answer.
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