Intel Atom C2758 vs Intel Pentium B940

Comparative analysis of Intel Atom C2758 and Intel Pentium B940 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Atom C2758

Intel Pentium B940

Differences

Reasons to consider the Intel Atom C2758

6 more cores, run more applications at once: 8 vs 2
6 more threads: 8 vs 2
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
4x more maximum memory size: 64 GB vs 16 GB
Around 75% lower typical power consumption: 20 Watt vs 35 Watt
2.8x better performance in PassMark - CPU mark: 2397 vs 866

Specifications (specs)
Number of cores	8 vs 2
Number of threads	8 vs 2
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	64 GB vs 16 GB
Thermal Design Power (TDP)	20 Watt vs 35 Watt
Benchmarks
PassMark - CPU mark	2397 vs 866

Reasons to consider the Intel Pentium B940

Around 48% better performance in PassMark - Single thread mark: 855 vs 576

Benchmarks
PassMark - Single thread mark	855 vs 576

Compare benchmarks

CPU 1: Intel Atom C2758
CPU 2: Intel Pentium B940

PassMark - Single thread mark

CPU 1

CPU 2

576

855

PassMark - CPU mark

CPU 1

CPU 2

2397

866

Name	Intel Atom C2758	Intel Pentium B940
PassMark - Single thread mark	576	855
PassMark - CPU mark	2397	866
Geekbench 4 - Single Core		355
Geekbench 4 - Multi-Core		644

Compare specifications (specs)

	Intel Atom C2758	Intel Pentium B940
Essentials
Architecture codename	Rangeley	Sandy Bridge
Launch date	Q3'13	15 May 2011
Place in performance rating	2785	2788
Processor Number	C2758	B940
Series	Intel® Atom™ Processor C Series	Legacy Intel® Pentium® Processor
Status	Launched	Launched
Vertical segment	Embedded	Mobile
Launch price (MSRP)		$30
Price now		$29.94
Value for money (0-100)		16.94
Performance
64 bit support
Base frequency	2.40 GHz	2.00 GHz
Manufacturing process technology	22 nm	32 nm
Number of cores	8	2
Number of threads	8	2
Die size		149 mm
L1 cache		128 KB
L2 cache		512 KB
L3 cache		2048 KB
Maximum core temperature		85 C
Maximum frequency		2 GHz
Transistor count		624 Million
Memory
Max memory channels	2	2
Maximum memory size	64 GB	16 GB
Supported memory types	DDR3/DDR3L 1600	DDR3 1066/1333
Maximum memory bandwidth		21.3 GB/s
Compatibility
Low Halogen Options Available
Package Size	34 mm x 28 mm	37.5mmx37.5mm (rPGA988B)
Sockets supported	FCBGA1283	PGA988
Thermal Design Power (TDP)	20 Watt	35 Watt
Max number of CPUs in a configuration		1
Peripherals
Integrated LAN
Max number of PCIe lanes	16	16
Max number of SATA 6 Gb/s Ports	2
Number of USB ports	4
PCI Express revision	2	2.0
PCIe configurations	x1, x2, x4, x8, x16	1x16, 2x8, 1x8 2x4
Total number of SATA ports	6
UART
USB revision	2
Security & Reliability
Execute Disable Bit (EDB)
Anti-Theft technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Integrated Intel® QuickAssist Technology
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	36-bit
4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® My WiFi technology
Intel® vPro™ Platform Eligibility
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)
Graphics
Graphics base frequency		650 MHz
Graphics max dynamic frequency		1.10 GHz
Graphics max frequency		1.1 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics		Intel HD Graphics
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported		2
SDVO
Wireless Display (WiDi) support