Intel Core i9 12900KS vs Intel Xeon 656
CPU · Specs Compare
General Parameters
Release Date
Apr 2022
Feb 2026
Manufacturer
Intel
Intel
Type
Desktop
Server
Instruction Set
x86-64
—
Core Architecture
Alder Lake-S
Granite Rapids
Processor Number
i9-12900KS
—
Integrated Graphics
UHD Graphics 770
N/A
Generation
—
Xeon 600 (Granite Rapids-WS)
Series
—
Intel Xeon 6 processors
Package
Manufacturing Process
10 nm
5 nm
Socket
LGA-1700
Intel Socket 4710
Power Consumption
150 W
210 W
Peak Operating Temperature
100 °C
98°C
Foundry
—
Intel
Die Size
—
2x598 mm²
I/O Process Size
—
10 nm
I/O Die Size
—
2x 241
Package
—
FC-LGA18N
CPU Performance
Performance Cores
8
20
Performance Core Base Frequency
3.4 GHz
2.9 GHz
Performance Core Turbo Frequency
5.5 GHz
4.8 GHz
Efficiency Cores
8
—
Total Core Count
16
20
Total Thread Count
24
40
Bus Frequency
100 MHz
100 MHz
Multiplier
34x
29.0
L1 Cache
64 K per core
112 KB per core
L2 Cache
14 MB shared
2 MB per core
L3 Cache
30 MB shared
72 MB shared
Unlocked Multiplier
Yes
Yes
Performance Core Threads
—
40
SMP
—
1
Memory Parameters
Memory Types
DDR5-4800, DDR4-3200
DDR5-6400
Max Memory Size
128 GB
4 TB
Max Memory Channels
2
8
Max Memory Bandwidth
76.8 GB/s
409.6 GB/s
ECC Memory Support
Yes
Yes
Graphics Card Parameters
Integrated Graphics
true
—
GPU Base Frequency
300 MHz
—
GPU Max Dynamic Frequency
1550 MHz
—
Shader Units
256
—
Texture Units
16
—
Raster Operation Units
8
—
Execution Units
32
—
Power Consumption
15 W
—
Miscellaneous
PCIe Version
5.0
5
PCIe Lanes
20
128
Benchmark
Cinebench R23
2,082
—
Cinebench R23
27,796
—
Geekbench 6
2,559
—
Geekbench 6
15,546
—
Passmark CPU
4,357
—
Passmark CPU
44,470
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.