AMD EPYC 7643 vs AMD EPYC 7663P
We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and AMD EPYC 7663P with 56 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 7643 's Advantages
Higher base frequency (2.3GHz vs 2GHz)
Lower TDP (225W vs 240W)
AMD EPYC 7663P 's Advantages
Released 2 years and 6 months late
Score
General Parameters
Mar 2021
Release Date
Sep 2023
AMD
Manufacturer
AMD
Server
Type
Server
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-
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Milan
Core Architecture
Milan
-
-
-
AMD Socket SP3
Socket
AMD Socket SP3
N/A
Integrated Graphics
N/A
EPYC (Zen 3 (Milan))
Generation
EPYC (Zen 3 (Milan))
Package
33.2 billions
Transistor Count
33.2 billions
7 nm
Manufacturing Process
7 nm
-
-
-
225 W
Power Consumption
240 W
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-
-
-
-
-
TSMC
Foundry
TSMC
8x81 mm²
Die Size
8x81 mm²
12 nm
I/O Process Size
12 nm
416 mm²
I/O Die Size
416 mm²
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-
-
CPU Performance
-
-
-
-
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2.3 GHz
Performance Core Base Frequency
2 GHz
3.6 GHz
Performance Core Turbo Frequency
3.5 GHz
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-
-
-
-
-
-
-
-
-
-
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48
Total Core Count
56
96
Total Thread Count
112
100 MHz
Bus Frequency
100 MHz
23.0
Multiplier
20.0
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-
-
64 KB per core
L1 Cache
64 KB per core
512 KB per core
L2 Cache
512 KB per core
256 MB shared
L3 Cache
256 MB shared
No
Unlocked Multiplier
No
CCDs
6
Cores per CCD
8
2
SMP
1
-
-
-
-
-
-
Memory Parameters
DDR4-3200
Memory Types
DDR4-3200
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-
-
8
Max Memory Channels
8
-
-
-
Yes
ECC Memory Support
Yes
Graphics Card Parameters
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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AI Accelerator
-
-
-
-
-
-
Miscellaneous
-
-
-
4
PCIe Version
4
128
PCIe Lanes
128
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-
-
-
