Intel Core Ultra 9 285 vs Intel Xeon 656
CPU · Specs Compare
General Parameters
Release Date
Dec 2024
Feb 2026
Manufacturer
Intel
Intel
Type
Desktop
Server
Instruction Set
x86-64
—
Core Architecture
Arrow Lake
Granite Rapids
Processor Number
285
—
Integrated Graphics
Arc Graphics
N/A
Generation
Ultra 9 (Arrow Lake)
Xeon 600 (Granite Rapids-WS)
Series
—
Intel Xeon 6 processors
Package
Transistor Count
17.8 billions
—
Manufacturing Process
3 nm
5 nm
Socket
FCLGA-1851
Intel Socket 4710
Power Consumption
65 W
210 W
Max Turbo Power Consumption
182 W
—
Peak Operating Temperature
105 °C
98°C
Foundry
TSMC
Intel
Die Size
243 mm²
2x598 mm²
Package
FC-LGA18W
FC-LGA18N
I/O Process Size
—
10 nm
I/O Die Size
—
2x 241
CPU Performance
Performance Cores
8
20
Performance Core Threads
8
40
Performance Core Base Frequency
2.5 GHz
2.9 GHz
Performance Core Turbo Frequency
5.6 GHz
4.8 GHz
Efficiency Cores
16
—
Efficiency Core Threads
16
—
Efficiency Core Base Frequency
1.9 GHz
—
Efficiency Core Turbo Frequency
4.6 GHz
—
Total Core Count
24
20
Total Thread Count
24
40
Bus Frequency
100 MHz
100 MHz
Multiplier
25
29.0
L1 Cache
192 K per core
112 KB per core
L2 Cache
3 MB per core
2 MB per core
L3 Cache
36 MB shared
72 MB shared
Unlocked Multiplier
No
Yes
SMP
1
1
Memory Parameters
Memory Types
DDR5-6400
DDR5-6400
Max Memory Size
256 GB
4 TB
Max Memory Channels
2
8
Max Memory Bandwidth
102.4 GB/s
409.6 GB/s
ECC Memory Support
Yes
Yes
Graphics Card Parameters
Integrated Graphics
true
—
GPU Base Frequency
600 MHz
—
GPU Max Dynamic Frequency
2000 MHz
—
Shader Units
512
—
Execution Units
4
—
Miscellaneous
PCIe Version
5.0
5
PCIe Lanes
24
128
Benchmark
Cinebench R23
2,178
—
Cinebench R23
33,309
—
Geekbench 6
3,194
—
Geekbench 6
21,649
—
Cinebench 2024
133
—
Cinebench 2024
1,979
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.