Intel Core i7 7820X vs Intel Core Ultra 5 250KF Plus
CPU Specs Compare
General Parameters
Release Date
May 2017
Mar 2026
Manufacturer
Intel
Intel
Type
Desktop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Skylake
Arrow Lake
Processor Number
i7-7820X
250KF+
Integrated Graphics
N/A
No
Package
Manufacturing Process
14 nm
3 nm
Socket
LGA-2066
FCLGA-1851
Power Consumption
140 W
125 W
Peak Operating Temperature
99 °C
105 °C
Transistor Count
-
17.8 billions
Max Turbo Power Consumption
-
159 W
CPU Performance
Performance Cores
8
6
Performance Core Threads
16
6
Performance Core Base Frequency
3.6 GHz
4.2 GHz
Performance Core Turbo Frequency
4.3 GHz
5.3 GHz
Total Core Count
8
18
Total Thread Count
16
18
Bus Frequency
100 MHz
100 MHz
Multiplier
36x
42
L1 Cache
64 K per core
192 K per core
L2 Cache
1 MB per core
3 MB per core
L3 Cache
11 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
Efficiency Cores
-
12
Efficiency Core Threads
-
12
Efficiency Core Base Frequency
-
3.3 GHz
Efficiency Core Turbo Frequency
-
4.6 GHz
Memory Parameters
Memory Types
DDR4-2666
DDR5-7200
Max Memory Size
128 GB
-
Max Memory Channels
4
-
Max Memory Bandwidth
79.47 GB/s
115.2 GB/s
ECC Memory Support
No
Yes
Miscellaneous
📊 Benchmark
Cinebench R23
1,338
2,335
Cinebench R23
13,358
29,012
Geekbench 6
1,252
3,219
Geekbench 5
1,120
-
Geekbench 6
7,510
21,115
Geekbench 5
8,504
-
Passmark CPU
2,536
-
Passmark CPU
17,189
-
Cinebench 2024
-
140
Cinebench 2024
-
1,689
Cinebench 2026
-
7,413