Atom Z500 vs Xeon E5640
Primary details
Comparing Xeon E5640 and Atom Z500 processor market type (desktop or notebook), architecture, sales start time and price.
Place in performance ranking | 1756 | not rated |
Place by popularity | not in top-100 | not in top-100 |
Cost-effectiveness evaluation | 0.85 | no data |
Market segment | Server | Laptop |
Series | no data | Intel Atom |
Architecture codename | Westmere-EP (2010−2011) | Silverthorne (2008−2010) |
Release date | 16 March 2010 (14 years ago) | 2 April 2008 (16 years ago) |
Launch price (MSRP) | $49 | $45 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5640 and Atom Z500 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) | 1 (Single-Core) |
Threads | 8 | 1 |
Base clock speed | 2.66 GHz | no data |
Boost clock speed | 2.93 GHz | 0.8 GHz |
Bus type | no data | FSB |
Bus rate | no data | 400 MT/s |
Multiplier | no data | 8 |
L1 cache | 64 KB (per core) | 56 KB |
L2 cache | 256 KB (per core) | 512 KB |
L3 cache | 12 MB (shared) | 0 KB |
Chip lithography | 32 nm | 45 nm |
Die size | 239 mm2 | 24.18 mm2 |
Maximum core temperature | 78 °C | 90 °C |
Number of transistors | 1,170 million | 47 Million |
64 bit support | + | - |
Windows 11 compatibility | - | - |
VID voltage range | no data | 0.80 -1.1V |
Compatibility
Information on Xeon E5640 and Atom Z500 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 (Uniprocessor) |
Socket | FCLGA1366,LGA1366 | PBGA441 |
Power consumption (TDP) | 80 Watt | 0.65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5640 and Atom Z500. You'll probably need this information if you require some particular technology.
Instruction set extensions | Intel® SSE4.2 | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
AES-NI | + | - |
Enhanced SpeedStep (EIST) | + | + |
Turbo Boost Technology | 1.0 | - |
Hyper-Threading Technology | + | + |
Idle States | + | + |
Thermal Monitoring | - | + |
Demand Based Switching | + | + |
PAE | 40 Bit | no data |
FSB parity | no data | - |
Status | Discontinued | Discontinued |
Security technologies
Xeon E5640 and Atom Z500 technologies aimed at improving security, for example, by protecting against hacks.
TXT | + | - |
EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5640 and Atom Z500 are enumerated here.
VT-d | + | - |
VT-x | + | - |
EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5640 and Atom Z500. Depending on the motherboard, higher memory frequencies may be supported.
Supported memory types | DDR3 | no data |
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 Atom Z500.
PCIe version | 2.0 | no data |
Pros & cons summary
Recency | 16 March 2010 | 2 April 2008 |
Physical cores | 4 | 1 |
Threads | 8 | 1 |
Chip lithography | 32 nm | 45 nm |
Xeon E5640 has an age advantage of 1 year, 300% more physical cores and 700% more threads, and a 40.6% more advanced lithography process.
We couldn't decide between Xeon E5640 and Atom Z500. We've got no test results to judge.
Be aware that Xeon E5640 is a server/workstation processor while Atom Z500 is a notebook one.
Should you still have questions on choice between Xeon E5640 and Atom Z500, ask them in Comments section, and we shall answer.
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