Intel Core i5 6400 vs Intel Core Ultra 9 275HX
CPU · Specs Compare
General Parameters
Release Date
Sep 2015
Jan 2025
Manufacturer
Intel
Intel
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Skylake
Arrow Lake
Processor Number
i5-6400
275HX
Integrated Graphics
HD Graphics 530
Arc Graphics (4-Cores)
Generation
—
Ultra 9 (Arrow Lake)
Package
Manufacturing Process
14 nm
3 nm
Socket
LGA-1151
FCBGA-2114
Power Consumption
65 W
45-55 W
Max Turbo Power Consumption
—
160 W
Peak Operating Temperature
—
105 °C
Foundry
—
Intel
Package
—
FC-LGA18V
CPU Performance
Performance Cores
4
8
Performance Core Threads
4
8
Performance Core Base Frequency
2.7 GHz
2.7 GHz
Performance Core Turbo Frequency
3.3 GHz
5.4 GHz
Total Core Count
4
24
Total Thread Count
4
24
Bus Frequency
100 MHz
100 MHz
Multiplier
27x
27
L1 Cache
64 K per core
112 K per core
L2 Cache
256 K per core
2 MB per core
L3 Cache
6 MB shared
36 MB shared
Unlocked Multiplier
No
Yes
Efficiency Cores
—
16
Efficiency Core Threads
—
16
Efficiency Core Base Frequency
—
2.1 GHz
Efficiency Core Turbo Frequency
—
4.6 GHz
SMP
—
1
Memory Parameters
Memory Types
DDR4-2133, DDR3L-1600
DDR5-6400
Max Memory Size
64 GB
192 GB
Max Memory Channels
2
2
Max Memory Bandwidth
34.1 GB/s
102.4 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
true
GPU Max Dynamic Frequency
950 MHz
1900 MHz
GPU Base Frequency
—
300 MHz
Shader Units
—
512
Texture Units
—
32
Raster Operation Units
—
16
Execution Units
—
64
Power Consumption
—
14
Miscellaneous
PCIe Version
3.0
5.0
PCIe Lanes
16
24
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
—
Benchmark
Cinebench R23
898
2,090
Cinebench R23
3,214
31,244
Geekbench 6
1,143
2,959
Geekbench 5
853
—
Geekbench 6
3,312
17,562
Geekbench 5
2,805
—
Blender
49
507
Passmark CPU
1,961
4,732
Passmark CPU
5,151
61,069
Cinebench 2024
—
131
Cinebench 2024
—
1,768
▲ Specs Compare
Data sourced from official specifications and benchmark tests.