Intel Core i9-11900K vs Intel Core i5-10400

Comparative analysis of Intel Core i9-11900K and Intel Core i5-10400 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, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

Intel Core i9-11900K

Intel Core i5-10400

Differences

Reasons to consider the Intel Core i9-11900K

CPU is newer: launch date 9 month(s) later
2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 23% higher clock speed: 5.30 GHz vs 4.30 GHz
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 33% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 37% better performance in PassMark - Single thread mark: 3520 vs 2571
2.1x better performance in PassMark - CPU mark: 25324 vs 12134
Around 77% better performance in 3DMark Fire Strike - Physics Score: 8414 vs 4753

Specifications (specs)
Launch date	16 Mar 2021 vs 27 May 2020
Number of cores	8 vs 6
Number of threads	16 vs 12
Maximum frequency	5.30 GHz vs 4.30 GHz
L1 cache	512 KB vs 384 KB
L2 cache	2 MB vs 1.5 MB
L3 cache	16 MB vs 12 MB
Benchmarks
PassMark - Single thread mark	3520 vs 2571
PassMark - CPU mark	25324 vs 12134
3DMark Fire Strike - Physics Score	8414 vs 4753

Reasons to consider the Intel Core i5-10400

Around 92% lower typical power consumption: 65 Watt vs 125 Watt

Thermal Design Power (TDP)	65 Watt vs 125 Watt

Compare benchmarks

CPU 1: Intel Core i9-11900K
CPU 2: Intel Core i5-10400

PassMark - Single thread mark

CPU 1

CPU 2

3520

2571

PassMark - CPU mark

CPU 1

CPU 2

25324

12134

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

8414

4753

Name	Intel Core i9-11900K	Intel Core i5-10400
PassMark - Single thread mark	3520	2571
PassMark - CPU mark	25324	12134
3DMark Fire Strike - Physics Score	8414	4753
GFXBench 4.0 - Car Chase Offscreen (Frames)		1953
GFXBench 4.0 - Car Chase Offscreen (Fps)		1953
GFXBench 4.0 - Manhattan (Frames)		4164
GFXBench 4.0 - Manhattan (Fps)		4164
GFXBench 4.0 - T-Rex (Frames)		6744
GFXBench 4.0 - T-Rex (Fps)		6744

Compare specifications (specs)

	Intel Core i9-11900K	Intel Core i5-10400
Essentials
Architecture codename	Rocket Lake	Comet Lake
Launch date	16 Mar 2021	27 May 2020
Launch price (MSRP)	$539 - $549	$182
Place in performance rating	483	492
Processor Number	i9-11900K	i5-10400
Series	11th Generation Intel Core i9 Processors	10th Generation Intel Core i5 Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.50 GHz	2.90 GHz
Bus Speed	8 GT/s	8 GT/s
L1 cache	512 KB	384 KB
L2 cache	2 MB	1.5 MB
L3 cache	16 MB	12 MB
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C	100°C
Maximum frequency	5.30 GHz	4.30 GHz
Number of cores	8	6
Number of threads	16	12
Memory
Max memory channels	2	2
Maximum memory bandwidth	50 GB/s	41.6 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-2666
Graphics
Device ID	0x4C8A	0x9BC8 / 0x9BC5
Execution Units	32
Graphics base frequency	350 MHz	350 MHz
Graphics max dynamic frequency	1.30 GHz	1.10 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB	64 GB
Processor graphics	Intel UHD Graphics 750	Intel UHD Graphics 630
Graphics interfaces
Number of displays supported	3	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	5120 x 3200 @60Hz	4096x2304@60Hz
Max resolution over eDP	5120 x 3200 @60Hz	4096x2304@60Hz
Max resolution over HDMI 1.4		4096x2160@30Hz
Graphics API support
DirectX	12.1	12
OpenGL	4.5	4.5
Compatibility
Configurable TDP-down	95 Watt
Configurable TDP-down Frequency	3.00 GHz
Max number of CPUs in a configuration	1	1
Package Size	37.5 mm x 37.5 mm	37.5mm x 37.5mm
Sockets supported	FCLGA1200
Thermal Design Power (TDP)	125 Watt	65 Watt
Thermal Solution	PCG 2019A	PCG 2015C
Peripherals
Max number of PCIe lanes	20	16
PCI Express revision	4.0	3.0
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4	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 AVX-512	Intel SSE4.1, Intel SSE4.2, Intel AVX2
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® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)