Intel Core i7 7820X vs Intel Xeon 638
CPU Specs Compare
General Parameters
Release Date
May 2017
Feb 2026
Manufacturer
Intel
Intel
Type
Desktop
Server
Instruction Set
x86-64
-
Core Architecture
Skylake
Granite Rapids
Processor Number
i7-7820X
-
Integrated Graphics
N/A
N/A
Generation
-
Xeon 600 (Granite Rapids-WS)
Package
Manufacturing Process
14 nm
5 nm
Socket
LGA-2066
Intel Socket 4710
Power Consumption
140 W
180 W
Peak Operating Temperature
99 °C
100°C
Foundry
-
Intel
Die Size
-
598 mm²
I/O Process Size
-
10 nm
I/O Die Size
-
2x 241
Package
-
FC-LGA18N
CPU Performance
Performance Cores
8
-
Performance Core Threads
16
-
Performance Core Base Frequency
3.6 GHz
3.2 GHz
Performance Core Turbo Frequency
4.3 GHz
4.8 GHz
Total Core Count
8
16
Total Thread Count
16
32
Bus Frequency
100 MHz
100 MHz
Multiplier
36x
32.0
L1 Cache
64 K per core
112 KB per core
L2 Cache
1 MB per core
2 MB per core
L3 Cache
11 MB shared
72 MB shared
Unlocked Multiplier
Yes
Yes
SMP
-
1
Memory Parameters
Memory Types
DDR4-2666
DDR5-6400
Max Memory Size
128 GB
-
Max Memory Channels
4
4
Max Memory Bandwidth
79.47 GB/s
-
ECC Memory Support
No
Yes
Miscellaneous
PCIe Version
3.0
5
PCIe Lanes
28
80
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
-
📊 Benchmark
Cinebench R23
1,338
-
Cinebench R23
13,358
-
Geekbench 6
1,252
-
Geekbench 5
1,120
-
Geekbench 6
7,510
-
Geekbench 5
8,504
-
Passmark CPU
2,536
-
Passmark CPU
17,189
-