Intel Core i7 7800X vs i5 9600K

We compared two 6-core desktop CPUs: the 3.5 GHz Intel Core i7 7800X against the 3.7 GHz i5 9600K. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 9600K and 7800X
Advantages of Intel Core i7 7800X
  • Supports quad-channel memory
  • Around 37.87 GB/s (91%) higher theoretical memory bandwidth
Advantages of Intel Core i5 9600K
  • Consumes up to 32% less energy than the Core i7 7800X – 95 vs 140 Watt
  • Newer - released 1-year and 5-months later
  • 15% higher Turbo Boost frequency (4.6 GHz vs 4 GHz)
  • Includes an integrated GPU Intel UHD Graphics 630
  • Has 1 MB larger L3 cache size
  • 12% faster in a single-core Geekbench v5 test - 1203 vs 1075 points


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
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Full technical specification of Intel Core i7 7800X and i5 9600K


Vendor Intel Intel
Released May 30, 2017 October 8, 2018
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Skylake Coffee Lake
Model number i7-7800X i5-9600K
Socket LGA-2066 LGA-1151
Integrated GPU No UHD Graphics 630


Cores 6 6
Threads 12 6
Base Frequency 3.5 GHz 3.7 GHz
Turbo Boost Frequency 4 GHz 4.6 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 35x 37x
Bus Bandwidth 8 GT/s 8 GT/s
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 256K (per core)
L3 Cache 8MB (shared) 9MB (shared)
Unlocked Multiplier Yes Yes


Fabrication process 14 nm 14 nm
TDP 140 W 95 W
Max. temperature 100°C 100°C


Integrated Graphics - Intel UHD Graphics 630
GPU Base Clock - 350 MHz
GPU Boost Clock - 1150 MHz
Shading Units - 192
TMUs - 24
ROPs - 3
Execution Units - 24
TGP - 15 W
Max. Resolution - 4096x2304 - 60 Hz

Memory support

Memory types DDR4-2400 DDR4-2666
Memory Size 128 GB 128 GB
Max. Memory Channels 4 2
Max. Memory Bandwidth 79.47 GB/s 41.6 GB/s
ECC Support No No


Official site Intel Core i7 7800X official page Intel Core i5 9600K official page
PCI Express Version 3.0 3.0
PCI Express Lanes 28 16
Extended instructions SSE4.1, SSE4.2, AVX-2, AVX-512 SSE4.1, SSE4.2, AVX-2

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So which CPU will you choose: Intel Core i5 9600K or i7 7800X?