Intel Core i9-10900K vs Intel Core i9-10940X

Comparative analysis of Intel Core i9-10900K and Intel Core i9-10940X 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, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Core i9-10900K

Intel Core i9-10940X

Differences

Reasons to consider the Intel Core i9-10900K

Around 15% higher clock speed: 5.30 GHz vs 4.60 GHz
Around 16% higher maximum core temperature: 100°C vs 86°C
Around 4% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 32% lower typical power consumption: 125 Watt vs 165 Watt
Around 17% better performance in PassMark - Single thread mark: 3118 vs 2658

Specifications (specs)
Maximum frequency	5.30 GHz vs 4.60 GHz
Maximum core temperature	100°C vs 86°C
L3 cache	20 MB vs 19.25 MB
Thermal Design Power (TDP)	125 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark	3118 vs 2658

Reasons to consider the Intel Core i9-10940X

4 more cores, run more applications at once: 14 vs 10
8 more threads: 28 vs 20
2x more maximum memory size: 256 GB vs 128 GB
Around 23% better performance in PassMark - CPU mark: 27803 vs 22562
Around 26% better performance in 3DMark Fire Strike - Physics Score: 11222 vs 8935

Specifications (specs)
Number of cores	14 vs 10
Number of threads	28 vs 20
Maximum memory size	256 GB vs 128 GB
Benchmarks
PassMark - CPU mark	27803 vs 22562
3DMark Fire Strike - Physics Score	11222 vs 8935

Compare benchmarks

CPU 1: Intel Core i9-10900K
CPU 2: Intel Core i9-10940X

PassMark - Single thread mark

CPU 1

CPU 2

3118

2658

PassMark - CPU mark

CPU 1

CPU 2

22562

27803

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

8935

11222

Name	Intel Core i9-10900K	Intel Core i9-10940X
PassMark - Single thread mark	3118	2658
PassMark - CPU mark	22562	27803
3DMark Fire Strike - Physics Score	8935	11222
Geekbench 4 - Single Core		1176
Geekbench 4 - Multi-Core		13529

Compare specifications (specs)

	Intel Core i9-10900K	Intel Core i9-10940X
Essentials
Architecture codename	Comet Lake	Cascade Lake
Launch date	Q2'20	7 Oct 2019
Launch price (MSRP)	$488 - $499	$784
Place in performance rating	525	653
Processor Number	i9-10900K	i9-10940X
Series	10th Generation Intel Core i9 Processors	Intel Core X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.70 GHz	3.30 GHz
Bus Speed	8 GT/s
L3 cache	20 MB	19.25 MB
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C	86°C
Maximum frequency	5.30 GHz	4.60 GHz
Number of cores	10	14
Number of threads	20	28
L1 cache		896 KB
L2 cache		14 MB
Memory
Max memory channels	2	4
Maximum memory bandwidth	45.8 GB/s
Maximum memory size	128 GB	256 GB
Supported memory types	DDR4-2933	DDR4-2933
Graphics
Device ID	0x9BC5
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.20 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 630
Graphics interfaces
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2160@30Hz
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Configurable TDP-down	95 Watt
Configurable TDP-down Frequency	3.30 GHz
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm
Sockets supported	FCLGA1200	FCLGA2066
Thermal Design Power (TDP)	125 Watt	165 Watt
Thermal Solution	PCG 2015D	PCG 2017X
Peripherals
Max number of PCIe lanes	16	48
PCI Express revision	3.0	3.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
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 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
Intel® vPro™ Platform Eligibility
Thermal Monitoring
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)