Intel Core i9-9900KF vs Intel Core i9-7900X

Comparative analysis of Intel Core i9-9900KF and Intel Core i9-7900X processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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.

 

Differences

Reasons to consider the Intel Core i9-9900KF

  • Around 16% higher clock speed: 5.00 GHz vs 4.30 GHz
  • Around 5% higher maximum core temperature: 100°C vs 95°C
  • Around 47% lower typical power consumption: 95 Watt vs 140 Watt
  • Around 14% better performance in PassMark - Single thread mark: 2934 vs 2568
  • Around 19% better performance in Geekbench 4 - Single Core: 1343 vs 1129
  • Around 1% better performance in 3DMark Fire Strike - Physics Score: 7066 vs 6987
Specifications (specs)
Maximum frequency 5.00 GHz vs 4.30 GHz
Maximum core temperature 100°C vs 95°C
Thermal Design Power (TDP) 95 Watt vs 140 Watt
Benchmarks
PassMark - Single thread mark 2934 vs 2568
Geekbench 4 - Single Core 1343 vs 1129
3DMark Fire Strike - Physics Score 7066 vs 6987

Reasons to consider the Intel Core i9-7900X

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 2 more cores, run more applications at once: 10 vs 8
  • 4 more threads: 20 vs 16
  • Around 16% better performance in PassMark - CPU mark: 21169 vs 18323
  • Around 18% better performance in Geekbench 4 - Multi-Core: 10300 vs 8735
Specifications (specs)
Unlocked Unlocked vs Locked
Number of cores 10 vs 8
Number of threads 20 vs 16
Benchmarks
PassMark - CPU mark 21169 vs 18323
Geekbench 4 - Multi-Core 10300 vs 8735

Compare benchmarks

CPU 1: Intel Core i9-9900KF
CPU 2: Intel Core i9-7900X

PassMark - Single thread mark
CPU 1
CPU 2
2934
2568
PassMark - CPU mark
CPU 1
CPU 2
18323
21169
Geekbench 4 - Single Core
CPU 1
CPU 2
1343
1129
Geekbench 4 - Multi-Core
CPU 1
CPU 2
8735
10300
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
7066
6987
Name Intel Core i9-9900KF Intel Core i9-7900X
PassMark - Single thread mark 2934 2568
PassMark - CPU mark 18323 21169
Geekbench 4 - Single Core 1343 1129
Geekbench 4 - Multi-Core 8735 10300
3DMark Fire Strike - Physics Score 7066 6987

Compare specifications (specs)

Intel Core i9-9900KF Intel Core i9-7900X

Essentials

Architecture codename Coffee Lake Skylake
Launch date Q1'19 30 May 2017
Place in performance rating 882 946
Processor Number i9-9900KF i9-7900X
Series 9th Generation Intel® Core™ i9 Processors Intel® Core™ X-series Processors
Status Launched Launched
Vertical segment Desktop Desktop
Launch price (MSRP) $1,050
Price now $1,383.99
Value for money (0-100) 4.68

Performance

64 bit support
Base frequency 3.60 GHz 3.30 GHz
Bus Speed 8 GT/s DMI3 8 GT/s DMI3
Manufacturing process technology 14 nm 14 nm
Maximum core temperature 100°C 95°C
Maximum frequency 5.00 GHz 4.30 GHz
Number of cores 8 10
Number of threads 16 20
L1 cache 64 KB (per core)
L2 cache 256 KB (per core)
L3 cache 13.8 MB
Maximum case temperature (TCase) 72 °C
Number of QPI Links 0
Unlocked

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

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 140 Watt
Thermal Solution PCG 2015D (130W) PCG 2017X
Low Halogen Options Available

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® 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
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)
AMD Virtualization (AMD-V™)