Intel Core i7-11700T vs Intel Core i9-9940X

Comparative analysis of Intel Core i7-11700T and Intel Core i9-9940X 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 i7-11700T

Intel Core i9-9940X

Differences

Reasons to consider the Intel Core i7-11700T

CPU is newer: launch date 2 year(s) 5 month(s) later
Around 5% higher clock speed: 4.60 GHz vs 4.40 GHz
Around 14% higher maximum core temperature: 100°C vs 88°C
8x 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
4.7x lower typical power consumption: 35 Watt vs 165 Watt
Around 11% better performance in PassMark - Single thread mark: 2908 vs 2629

Specifications (specs)
Launch date	16 Mar 2021 vs October 2018
Maximum frequency	4.60 GHz vs 4.40 GHz
Maximum core temperature	100°C vs 88°C
L1 cache	512 KB vs 64K (per core)
L2 cache	4 MB vs 1 MB (per core)
Thermal Design Power (TDP)	35 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark	2908 vs 2629

Reasons to consider the Intel Core i9-9940X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 20% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 79% better performance in PassMark - CPU mark: 27995 vs 15671

Specifications (specs)
Unlocked	Unlocked vs Locked
L3 cache	19.25 MB (shared) vs 16 MB
Benchmarks
PassMark - CPU mark	27995 vs 15671

Compare benchmarks

CPU 1: Intel Core i7-11700T
CPU 2: Intel Core i9-9940X

PassMark - Single thread mark

CPU 1

CPU 2

2908

2629

PassMark - CPU mark

CPU 1

CPU 2

15671

27995

Name	Intel Core i7-11700T	Intel Core i9-9940X
PassMark - Single thread mark	2908	2629
PassMark - CPU mark	15671	27995
Geekbench 4 - Single Core		1140
Geekbench 4 - Multi-Core		13302
3DMark Fire Strike - Physics Score		11442

Compare specifications (specs)

	Intel Core i7-11700T	Intel Core i9-9940X
Essentials
Architecture codename	Rocket Lake	Skylake
Launch date	16 Mar 2021	October 2018
Launch price (MSRP)	$323
Place in performance rating	671	679
Processor Number	i7-11700T	i9-9940X
Series	11th Generation Intel Core i7 Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	1.40 GHz	3.30 GHz
Bus Speed	8 GT/s	8 GT/s DMI3
L1 cache	512 KB	64K (per core)
L2 cache	4 MB	1 MB (per core)
L3 cache	16 MB	19.25 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C	88°C
Maximum frequency	4.60 GHz	4.40 GHz
Number of cores		14
Number of QPI Links		0
Number of threads		28
Unlocked
Memory
Max memory channels	2	4
Maximum memory bandwidth	50 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-2666
Graphics
Device ID	0x4C8A
Execution Units	32
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.30 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel UHD Graphics 750
Graphics interfaces
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	5120 x 3200 @60Hz
Max resolution over eDP	5120 x 3200 @60Hz
Graphics API support
DirectX	12.1
OpenGL	4.5
Compatibility
Configurable TDP-down	25 Watt
Configurable TDP-down Frequency	900 MHz
Max number of CPUs in a configuration	1	1
Package Size	37.5 mm x 37.5 mm
Sockets supported	FCLGA1200	FCLGA2066
Thermal Design Power (TDP)	35 Watt	165 Watt
Thermal Solution	PCG 2019D	PCG 2017X
Peripherals
Max number of PCIe lanes	20	44
PCI Express revision	4.0	3.0
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4
Scalability	1S Only	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 AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Thermal Velocity Boost
Intel® Turbo Boost technology
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
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)