Intel Core i5 6600K vs Apple M3 Ultra
We compared two desktop CPUs: Intel Core i5 6600K with 4 cores 3.5GHz and Apple M3 Ultra with 32 cores 4.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 6600K Advantages
Lower TDP (91W vs 140W)
Apple M3 Ultra Advantages
Released 9 years and 7 months late
Higher specification of memory (6400 vs 2133)
Larger memory bandwidth (819.2GB/s vs 34.1GB/s)
Higher base frequency (4.5GHz vs 3.5GHz)
More modern manufacturing process (3nm vs 14nm)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 6600K
1486
Apple M3 Ultra
+118%
3247
Geekbench 6 Multi Core
Intel Core i5 6600K
4406
Apple M3 Ultra
+537%
28107
General Parameters
Aug 2015
Release Date
Mar 2025
Intel
Manufacturer
Apple
Desktop
Type
Desktop
x86-64
Instruction Set
ARMv8
Skylake
Core Architecture
Apple M3
i5-6600K
Processor Number
-
LGA-1151
Socket
Apple M-Socket
HD Graphics 530
Integrated Graphics
Apple M3 Ultra GPU (80-core)
Package
-
Transistor Count
184 billions
14 nm
Manufacturing Process
3 nm
91 W
Power Consumption
140 W
-
Peak Operating Temperature
100 °C
CPU Performance
4
Performance Cores
24
4
Performance Core Threads
24
3.5 GHz
Performance Core Base Frequency
4.5 GHz
3.9 GHz
Performance Core Turbo Frequency
-
-
Efficiency Cores
8
-
Efficiency Core Threads
8
4
Total Core Count
32
4
Total Thread Count
32
100 MHz
Bus Frequency
-
35
Multiplier
45
64 K per core
L1 Cache
-
256 K per core
L2 Cache
-
6 MB shared
L3 Cache
-
No
Unlocked Multiplier
No
Memory Parameters
DDR4-2133, DDR3L-1600
Memory Types
LPDDR5-6400
64 GB
Max Memory Size
512 GB
2
Max Memory Channels
8
34.1 GB/s
Max Memory Bandwidth
819.2 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
1150 MHz
GPU Max Dynamic Frequency
-
-
Shader Units
10240
-
Texture Units
640
-
Raster Operation Units
320
-
Execution Units
1280
-
Power Consumption
140
Miscellaneous
3.0
PCIe Version
-
16
PCIe Lanes
-
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-
