Intel Core i9-9900K vs Intel Core i9-9900X

Comparative analysis of Intel Core i9-9900K and Intel Core i9-9900X 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the Intel Core i9-9900K

  • Around 14% higher clock speed: 5.00 GHz vs 4.40 GHz
  • Around 9% higher maximum core temperature: 100°C vs 92°C
  • Around 74% lower typical power consumption: 95 Watt vs 165 Watt
  • Around 14% better performance in PassMark - Single thread mark: 2928 vs 2561
  • Around 18% better performance in Geekbench 4 - Single Core: 1336 vs 1136
Specifications (specs)
Maximum frequency 5.00 GHz vs 4.40 GHz
Maximum core temperature 100°C vs 92°C
Thermal Design Power (TDP) 95 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark 2928 vs 2561
Geekbench 4 - Single Core 1336 vs 1136

Reasons to consider the Intel Core i9-9900X

  • 2 more cores, run more applications at once: 10 vs 8
  • 4 more threads: 20 vs 16
  • Around 25% more L1 cache; more data can be stored in the L1 cache for quick access later
  • 5x more L2 cache, more data can be stored in the L2 cache for quick access later
  • Around 20% more L3 cache; more data can be stored in the L3 cache for quick access later
  • Around 20% better performance in PassMark - CPU mark: 21851 vs 18259
  • Around 19% better performance in Geekbench 4 - Multi-Core: 10446 vs 8781
  • Around 48% better performance in 3DMark Fire Strike - Physics Score: 10364 vs 7011
Specifications (specs)
Number of cores 10 vs 8
Number of threads 20 vs 16
L1 cache 64K (per core) vs 64K (per core)
L2 cache 1 MB (per core) vs 256K (per core)
L3 cache 19.25 MB (shared) vs 16 MB (shared)
Benchmarks
PassMark - CPU mark 21851 vs 18259
Geekbench 4 - Multi-Core 10446 vs 8781
3DMark Fire Strike - Physics Score 10364 vs 7011

Compare benchmarks

CPU 1: Intel Core i9-9900K
CPU 2: Intel Core i9-9900X

PassMark - Single thread mark
CPU 1
CPU 2
2928
2561
PassMark - CPU mark
CPU 1
CPU 2
18259
21851
Geekbench 4 - Single Core
CPU 1
CPU 2
1336
1136
Geekbench 4 - Multi-Core
CPU 1
CPU 2
8781
10446
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
7011
10364
Name Intel Core i9-9900K Intel Core i9-9900X
PassMark - Single thread mark 2928 2561
PassMark - CPU mark 18259 21851
Geekbench 4 - Single Core 1336 1136
Geekbench 4 - Multi-Core 8781 10446
3DMark Fire Strike - Physics Score 7011 10364
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 12.968
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 202.925
CompuBench 1.5 Desktop - T-Rex (Frames/s) 1.504
CompuBench 1.5 Desktop - Video Composition (Frames/s) 6.779
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 17.406
GFXBench 4.0 - Car Chase Offscreen (Frames) 2165
GFXBench 4.0 - Manhattan (Frames) 4003
GFXBench 4.0 - T-Rex (Frames) 6679
GFXBench 4.0 - Car Chase Offscreen (Fps) 2165
GFXBench 4.0 - Manhattan (Fps) 4003
GFXBench 4.0 - T-Rex (Fps) 6679

Compare specifications (specs)

Intel Core i9-9900K Intel Core i9-9900X

Essentials

Architecture codename Coffee Lake Skylake
Launch date October 2018 October 2018
Place in performance rating 811 821
Price now $909
Processor Number i9-9900K i9-9900X
Series 9th Generation Intel® Core™ i9 Processors Intel® Core™ X-series Processors
Status Launched Launched
Value for money (0-100) 6.63
Vertical segment Desktop Desktop

Performance

64 bit support
Base frequency 3.60 GHz 3.50 GHz
Bus Speed 8 GT/s DMI3 8 GT/s DMI3
L1 cache 64K (per core) 64K (per core)
L2 cache 256K (per core) 1 MB (per core)
L3 cache 16 MB (shared) 19.25 MB (shared)
Manufacturing process technology 14 nm 14 nm
Maximum case temperature (TCase) 72 °C 72 °C
Maximum core temperature 100°C 92°C
Maximum frequency 5.00 GHz 4.40 GHz
Number of cores 8 10
Number of threads 16 20
Unlocked
Number of QPI Links 0

Memory

Max memory channels 2 4
Maximum memory bandwidth 41.6 GB/s
Maximum memory size 128 GB 128 GB
Supported memory types DDR4-2666 DDR4-2666

Graphics

Device ID 0x3E98
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 4096x2304@24Hz

Graphics API support

DirectX 12
OpenGL 4.5

Compatibility

Max number of CPUs in a configuration 1 1
Package Size 37.5mm x 37.5mm
Sockets supported FCLGA1151 FCLGA2066
Thermal Design Power (TDP) 95 Watt 165 Watt
Thermal Solution PCG 2015D (130W) PCG 2017X

Peripherals

Max number of PCIe lanes 16 44
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® Memory Protection Extensions (Intel® MPX)
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® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
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)