Intel Atom E645CT vs Intel Pentium E5800

Comparative analysis of Intel Atom E645CT and Intel Pentium E5800 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Peripherals, Advanced Technologies, Virtualization, Security & Reliability. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

 

Differences

Reasons to consider the Intel Atom E645CT

  • 9.3x lower typical power consumption: 7 Watt vs 65 Watt
Thermal Design Power (TDP) 7 Watt vs 65 Watt

Reasons to consider the Intel Pentium E5800

  • 1 more cores, run more applications at once: 2 vs 1
  • Around 220% higher clock speed: 3.2 GHz vs 1 GHz
  • 2x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 4x more L2 cache, more data can be stored in the L2 cache for quick access later
Number of cores 2 vs 1
Maximum frequency 3.2 GHz vs 1 GHz
L1 cache 64 KB (per core) vs 64 KB (per core)
L2 cache 2048 KB (shared) vs 512 KB (per core)

Compare benchmarks

CPU 1: Intel Atom E645CT
CPU 2: Intel Pentium E5800

Name Intel Atom E645CT Intel Pentium E5800
PassMark - Single thread mark 1271
PassMark - CPU mark 1164
Geekbench 4 - Single Core 382
Geekbench 4 - Multi-Core 648
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 0.389
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 10.444
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.09
CompuBench 1.5 Desktop - Video Composition (Frames/s) 0.556
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 2.573

Compare specifications (specs)

Intel Atom E645CT Intel Pentium E5800

Essentials

Architecture codename Stellarton Wolfdale
Launch date November 2010 November 2010
Place in performance rating not rated 3073
Processor Number E645CT E5800
Series Legacy Intel Atom® Processors Legacy Intel® Pentium® Processor
Status Discontinued Discontinued
Vertical segment Embedded Desktop
Launch price (MSRP) $68
Price now $29.99
Value for money (0-100) 18.63

Performance

Base frequency 1.00 GHz 3.20 GHz
Bus Speed 2.5 GT/s PCIE 800 MHz FSB
Die size 26 mm 82 mm2
L1 cache 64 KB (per core) 64 KB (per core)
L2 cache 512 KB (per core) 2048 KB (shared)
Manufacturing process technology 45 nm 45 nm
Maximum frequency 1 GHz 3.2 GHz
Number of cores 1 2
Number of threads 2
Transistor count 47 million 228 million
64 bit support
Maximum core temperature 74.1°C
VID voltage range 0.8500V-1.3625V

Memory

Max memory channels 1
Maximum memory size 2.93 GB
Supported memory types DDR2 800 DDR1, DDR2, DDR3

Graphics

Graphics base frequency 320 MHz
Processor graphics Integrated

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 37.5mm x 37.5mm 37.5mm x 37.5mm
Sockets supported FCBGA1466 LGA775
Thermal Design Power (TDP) 7 Watt 65 Watt

Peripherals

Max number of PCIe lanes 2
PCIe configurations x1, root complex only

Advanced Technologies

Enhanced Intel SpeedStep® technology
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Thermal Monitoring

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)

Security & Reliability

Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)

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