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