Home Comparison Intel Core i7 7820X vs Intel Core Ultra 7 155UL

Intel Core i7 7820X vs Intel Core Ultra 7 155UL

Intel Core i7 7820X
VS
Intel Core Ultra 7 155UL
Intel Core i7 7820X
Intel Core Ultra 7 155UL
We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core Ultra 7 155UL with 12 cores 1.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 7820X 's Advantages
Higher base frequency (3.6GHz vs 1.7GHz)
Intel Core Ultra 7 155UL 's Advantages
Released 6 years and 11 months late
Higher specification of memory (5600 vs 2666)
Larger memory bandwidth (89.6GB/s vs 79.47GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (12MB vs 11MB)
More modern manufacturing process (7nm vs 14nm)
Lower TDP (15W vs 140W)

Score

Intel Core i7 7820X
VS
Intel Core Ultra 7 155UL

General Parameters

May 2017
Release Date
Apr 2024
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
-
Skylake
Core Architecture
Meteor Lake-PS
i7-7820X
Processor Number
-
LGA-2066
Socket
Intel Socket 1851
N/A
Integrated Graphics
Arc Xe-LPG 64EU
-
Generation
Ultra 7 (Meteor Lake)

Package

14 nm
Manufacturing Process
7 nm
140 W
Power Consumption
15 W
99 °C
Peak Operating Temperature
-
-
Foundry
Intel

CPU Performance

8
Performance Cores
2
16
Performance Core Threads
4
3.6 GHz
Performance Core Base Frequency
1.7 GHz
4.3 GHz
Performance Core Turbo Frequency
4.8 GHz
-
Efficiency Cores
10
-
Efficiency Core Threads
10
-
Efficiency Core Base Frequency
1200 MHz
-
Efficiency Core Turbo Frequency
3.8 GHz
8
Total Core Count
12
16
Total Thread Count
14
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
17.0
64 K per core
L1 Cache
112 KB per core
1 MB per core
L2 Cache
2 MB per core
11 MB shared
L3 Cache
12 MB shared
Yes
Unlocked Multiplier
No
-
SMP
1

Memory Parameters

DDR4-2666
Memory Types
DDR5-5600
128 GB
Max Memory Size
96 GB
4
Max Memory Channels
2
79.47 GB/s
Max Memory Bandwidth
89.6 GB/s
No
ECC Memory Support
No

Miscellaneous

Intel Core i7 7820X
Official Website
Intel Core Ultra 7 155UL
3.0
PCIe Version
4
28
PCIe Lanes
8
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
-

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