Intel Core Ultra 7 255H vs Intel Core i7 6500U
We compared two laptop CPUs: Intel Core Ultra 7 255H with 16 cores 2.0GHz and Intel Core i7 6500U with 2 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 255H 's Advantages
Released 9 years and 4 months late
Higher specification of memory (8400 vs 2133)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (24MB vs 4MB)
More modern manufacturing process (3nm vs 14nm)
Intel Core i7 6500U 's Advantages
Higher base frequency (2.5GHz vs 2.0GHz)
Lower TDP (15W vs 28W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255H
+182%
2029
Intel Core i7 6500U
719
Cinebench R23 Multi Core
Intel Core Ultra 7 255H
+890%
20521
Intel Core i7 6500U
2072
Geekbench 6 Single Core
Intel Core Ultra 7 255H
+174%
2823
Intel Core i7 6500U
1027
Geekbench 6 Multi Core
Intel Core Ultra 7 255H
+655%
15662
Intel Core i7 6500U
2074
General Parameters
Jan 2025
Release Date
Sep 2015
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Skylake
255H
Processor Number
i7-6500U
FCBGA-2049
Socket
BGA-1356
Arc Graphics 140T
Integrated Graphics
HD Graphics 520
Package
-
Transistor Count
1.7 billions
3 nm
Manufacturing Process
14 nm
20-28 W
Power Consumption
15 W
115 W
Max Turbo Power Consumption
-
110 °C
Peak Operating Temperature
100 °C
CPU Performance
6
Performance Cores
2
6
Performance Core Threads
4
2.0 GHz
Performance Core Base Frequency
2.5 GHz
5.1 GHz
Performance Core Turbo Frequency
3.1 GHz
10
Efficiency Cores
-
10
Efficiency Core Threads
-
1.5 GHz
Efficiency Core Base Frequency
-
4.4 GHz
Efficiency Core Turbo Frequency
-
16
Total Core Count
2
16
Total Thread Count
4
100 MHz
Bus Frequency
-
20
Multiplier
-
112 K per core
L1 Cache
64 K per core
2 MB per core
L2 Cache
256 K per core
24 MB shared
L3 Cache
4 MB shared
No
Unlocked Multiplier
No
Memory Parameters
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Memory Types
DDR4-2133, LPDDR3-1866, DDR3L-1600
128 GB
Max Memory Size
32 GB
2
Max Memory Channels
2
-
Max Memory Bandwidth
34.1 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
2250 MHz
GPU Max Dynamic Frequency
1050 MHz
Miscellaneous
5.0
PCIe Version
3.0
28
PCIe Lanes
12
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
