Intel Atom C2750 vs Intel Xeon L5640

Comparative analysis of Intel Atom C2750 and Intel Xeon L5640 processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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).

Intel Atom C2750

Intel Xeon L5640

Differences

Reasons to consider the Intel Atom C2750

2 more cores, run more applications at once: 8 vs 6
Around 40% higher maximum core temperature: 97°C vs 69.4°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
3x lower typical power consumption: 20 Watt vs 60 Watt

Number of cores	8 vs 6
Maximum core temperature	97°C vs 69.4°C
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	20 Watt vs 60 Watt

Reasons to consider the Intel Xeon L5640

4 more threads: 12 vs 8
Around 8% higher clock speed: 2.80 GHz vs 2.60 GHz
4.5x more maximum memory size: 288 GB vs 64 GB
Around 68% better performance in PassMark - Single thread mark: 1162 vs 693
3.1x better performance in PassMark - CPU mark: 8633 vs 2787
2.1x better performance in Geekbench 4 - Single Core: 455 vs 215
Around 65% better performance in Geekbench 4 - Multi-Core: 2407 vs 1458

Specifications (specs)
Number of threads	12 vs 8
Maximum frequency	2.80 GHz vs 2.60 GHz
Maximum memory size	288 GB vs 64 GB
Benchmarks
PassMark - Single thread mark	1162 vs 693
PassMark - CPU mark	8633 vs 2787
Geekbench 4 - Single Core	455 vs 215
Geekbench 4 - Multi-Core	2407 vs 1458

Compare benchmarks

CPU 1: Intel Atom C2750
CPU 2: Intel Xeon L5640

PassMark - Single thread mark

CPU 1

CPU 2

693

1162

PassMark - CPU mark

CPU 1

CPU 2

2787

8633

Geekbench 4 - Single Core

CPU 1

CPU 2

215

455

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1458

2407

Name	Intel Atom C2750	Intel Xeon L5640
PassMark - Single thread mark	693	1162
PassMark - CPU mark	2787	8633
Geekbench 4 - Single Core	215	455
Geekbench 4 - Multi-Core	1458	2407
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		2.022
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		52.531
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.561
CompuBench 1.5 Desktop - Video Composition (Frames/s)		3.387

Compare specifications (specs)

	Intel Atom C2750	Intel Xeon L5640
Essentials
Architecture codename	Avoton	Westmere EP
Launch date	Q3'13	March 2010
Place in performance rating	2883	2496
Processor Number	C2750	L5640
Series	Intel® Atom™ Processor C Series	Legacy Intel® Xeon® Processors
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$200
Price now		$34.75
Value for money (0-100)		54.30
Performance
64 bit support
Base frequency	2.40 GHz	2.26 GHz
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	97°C	69.4°C
Maximum frequency	2.60 GHz	2.80 GHz
Number of cores	8	6
Number of threads	8	12
Bus Speed		5.86 GT/s QPI
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		12288 KB (shared)
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		0.750V-1.350V
Memory
Max memory channels	2	3
Maximum memory bandwidth	25.6 GB/s	32 GB/s
Maximum memory size	64 GB	288 GB
Supported memory types	DDR3/DDR3L 1600	DDR3 800/1066/1333
ECC memory support
Compatibility
Low Halogen Options Available
Package Size	34 mm x 28 mm	42.5mm X 45mm
Sockets supported	FCBGA1283	FCLGA1366
Thermal Design Power (TDP)	20 Watt	60 Watt
Max number of CPUs in a configuration		2
Peripherals
Integrated LAN
Max number of PCIe lanes	16
Max number of SATA 6 Gb/s Ports	2
Number of USB ports	4
PCI Express revision	2
PCIe configurations	x1,x2,x4,x8,x16
Total number of SATA ports	6
UART
USB revision	2
Advanced Technologies
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	36-bit	40-bit
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® SSE4.2
Intel 64
Intel® Demand Based Switching
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)
Intel® Virtualization Technology for Directed I/O (VT-d)
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)