Pentium 8500 vs Xeon E5645
Primary details
Comparing Xeon E5645 and Pentium 8500 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1603 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.25 | no data |
| Market segment | Server | Laptop |
| Series | no data | Intel Alder Lake-M |
| Power efficiency | 3.76 | no data |
| Architecture codename | Westmere-EP (2010−2011) | Alder Lake-U (2022) |
| Release date | 16 March 2010 (14 years ago) | 23 February 2022 (2 years ago) |
| Launch price (MSRP) | $294 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5645 and Pentium 8500 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 | 6 (Hexa-Core) | 5 (Penta-Core) |
| Threads | 12 | 6 |
| Base clock speed | 2.4 GHz | 1 GHz |
| Boost clock speed | 2.67 GHz | 4.4 GHz |
| L1 cache | 64 KB (per core) | 80K (per core) |
| L2 cache | 256 KB (per core) | 1.25 MB (per core) |
| L3 cache | 12 MB (shared) | 8 MB (shared) |
| Chip lithography | 32 nm | Intel 7 nm |
| Die size | 239 mm2 | no data |
| Maximum core temperature | 76 °C | 100 °C |
| Number of transistors | 1,170 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon E5645 and Pentium 8500 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 | FCLGA1366,LGA1366 | Intel BGA 1781 |
| Power consumption (TDP) | 80 Watt | 9 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5645 and Pentium 8500. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | - |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
| Deep Learning Boost | - | + |
Security technologies
Xeon E5645 and Pentium 8500 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | no data |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5645 and Pentium 8500 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5645 and Pentium 8500. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4, DDR5 |
| Maximum memory size | 288 GB | 64 GB |
| Max memory channels | 3 | 2 |
| Maximum memory bandwidth | 32 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® UHD Graphics for 12th Gen Intel® Processors |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 800 MHz |
| Execution Units | no data | 48 |
Graphics interfaces
Available interfaces and connections of Xeon E5645 and Pentium 8500 integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon E5645 and Pentium 8500 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2304 @ 60Hz |
| Max resolution over eDP | no data | 4096 x 2304 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Xeon E5645 and Pentium 8500 integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.1 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5645 and Pentium 8500.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | no data | 14 |
Pros & cons summary
| Recency | 16 March 2010 | 23 February 2022 |
| Physical cores | 6 | 5 |
| Threads | 12 | 6 |
| Power consumption (TDP) | 80 Watt | 9 Watt |
Xeon E5645 has 20% more physical cores and 100% more threads.
Pentium 8500, on the other hand, has an age advantage of 11 years, and 788.9% lower power consumption.
We couldn't decide between Xeon E5645 and Pentium 8500. We've got no test results to judge.
Be aware that Xeon E5645 is a server/workstation processor while Pentium 8500 is a notebook one.
Should you still have questions on choice between Xeon E5645 and Pentium 8500, ask them in Comments section, and we shall answer.
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