Intel Xeon 638 vs Intel Core i9 12900T
CPU · Specs Compare
General Parameters
Release Date
Feb 2026
Jan 2022
Manufacturer
Intel
Intel
Type
Server
Desktop
Core Architecture
Granite Rapids
Alder Lake-S
Integrated Graphics
N/A
UHD Graphics 770
Generation
Xeon 600 (Granite Rapids-WS)
Core i9 (Alder Lake-S)
Package
Manufacturing Process
5 nm
10 nm
Socket
Intel Socket 4710
Intel Socket 1700
Power Consumption
180 W
35 W
Peak Operating Temperature
100°C
72 °C
Foundry
Intel
Intel
Die Size
598 mm²
215 mm²
I/O Process Size
10 nm
—
I/O Die Size
2x 241
—
Package
FC-LGA18N
FC-LGA16A
CPU Performance
Performance Core Base Frequency
3.2 GHz
1.4 GHz
Performance Core Turbo Frequency
4.8 GHz
4.9 GHz
Total Core Count
16
16
Total Thread Count
32
24
Bus Frequency
100 MHz
100 MHz
Multiplier
32.0
14.0
L1 Cache
112 KB per core
80 KB per core
L2 Cache
2 MB per core
1.25 MB per core
L3 Cache
72 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
SMP
1
1
Performance Cores
—
8
Performance Core Threads
—
16
Efficiency Cores
—
8
Efficiency Core Threads
—
8
Efficiency Core Base Frequency
—
1000 MHz
Efficiency Core Turbo Frequency
—
3.6 GHz
Memory Parameters
Memory Types
DDR5-6400
DDR4-3200, DDR5-4800
Max Memory Channels
4
2
ECC Memory Support
Yes
No
Max Memory Bandwidth
—
76.8 GB/s
Miscellaneous
PCIe Version
5
5
PCIe Lanes
80
20
Graphics Card Parameters
Integrated Graphics
—
true
GPU Base Frequency
—
300 MHz
GPU Max Dynamic Frequency
—
1550 MHz
Execution Units
—
32
Benchmark
Cinebench R23
—
1,865
Cinebench R23
—
22,804
Geekbench 6
—
2,362
Geekbench 6
—
12,384
Blender
—
153
▲ Specs Compare
Data sourced from official specifications and benchmark tests.