Intel Core i3-11100B vs Intel Core i9-7940X

Comparative analysis of Intel Core i3-11100B and Intel Core i9-7940X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

Intel Core i3-11100B

Intel Core i9-7940X

Differences

Reasons to consider the Intel Core i3-11100B

Around 2% higher clock speed: 4.40 GHz vs 4.30 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 10 nm SuperFin vs 14 nm
2.5x lower typical power consumption: 65 Watt vs 165 Watt
Around 17% better performance in PassMark - Single thread mark: 2912 vs 2486

Specifications (specs)
Maximum frequency	4.40 GHz vs 4.30 GHz
Manufacturing process technology	10 nm SuperFin vs 14 nm
Thermal Design Power (TDP)	65 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark	2912 vs 2486

Reasons to consider the Intel Core i9-7940X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 2% higher maximum core temperature: 102°C vs 100°C
2.3x better performance in PassMark - CPU mark: 25954 vs 11357

Specifications (specs)
Unlocked	Unlocked vs Locked
Maximum core temperature	102°C vs 100°C
Benchmarks
PassMark - CPU mark	25954 vs 11357

Compare benchmarks

CPU 1: Intel Core i3-11100B
CPU 2: Intel Core i9-7940X

PassMark - Single thread mark

CPU 1

CPU 2

2912

2486

PassMark - CPU mark

CPU 1

CPU 2

11357

25954

Name	Intel Core i3-11100B	Intel Core i9-7940X
PassMark - Single thread mark	2912	2486
PassMark - CPU mark	11357	25954
Geekbench 4 - Single Core		1153
Geekbench 4 - Multi-Core		12928
3DMark Fire Strike - Physics Score		10950

Compare specifications (specs)

	Intel Core i3-11100B	Intel Core i9-7940X
Essentials
Architecture codename	Tiger Lake	Skylake
Launch date	Q2'21	September 2017
Place in performance rating	720	722
Processor Number	i3-11100B	i9-7940X
Series	11th Generation Intel Core i3 Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$1,399
Price now		$1,129.99
Value for money (0-100)		6.63
Performance
64 bit support
Base frequency	3.60 GHz	3.10 GHz
Bus Speed	8 GT/s	8 GT/s DMI3
Manufacturing process technology	10 nm SuperFin	14 nm
Maximum core temperature	100°C	102°C
Maximum frequency	4.40 GHz	4.30 GHz
L1 cache		64 KB (per core)
L2 cache		1024 KB (per core)
L3 cache		19712 KB (shared)
Number of cores		14
Number of QPI Links		0
Number of threads		28
Unlocked
Memory
Max memory channels	2	4
Maximum memory bandwidth	51.2 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	Up to 3200 MT/s	DDR4-2666
Graphics
Execution Units	16
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.40 GHz
Intel® Quick Sync Video
Processor graphics	Intel UHD Graphics for 11th Gen Intel Processors
Graphics interfaces
Number of displays supported	4
Graphics image quality
4K resolution support
Max resolution over DisplayPort	7680x4320@60Hz
Max resolution over eDP	4096 x 2304@60Hz
Graphics API support
DirectX	12
OpenGL	4.6
Compatibility
Configurable TDP-up	65 Watt
Max number of CPUs in a configuration	1	1
Package Size	50mm x 26.5mm
Thermal Design Power (TDP)	65 Watt	165 Watt
Low Halogen Options Available
Sockets supported		FCLGA2066
Thermal Solution		PCG 2017X
Peripherals
Max number of PCIe lanes	20	44
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4
PCI Express revision		3.0
Scalability		1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Speed Shift technology
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Intel® Turbo Boost technology
Number of AVX-512 FMA Units		2
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)