AMD Ryzen 9 PRO 7945 vs Xeon E7 2820

VS

AMD Ryzen 9 PRO 7945

Intel Xeon E7-2820

We compared two server CPUs: AMD Ryzen 9 PRO 7945 with 12 cores 3.7GHz and Xeon E7 2820 with 8 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 PRO 7945 's Advantages

Released 12 years and 2 months late

Higher specification of memory (5200 vs 1333)

Higher base frequency (3.7GHz vs 2GHz)

Larger L3 cache size (64MB vs 18MB)

More modern manufacturing process (5nm vs 32nm)

Lower TDP (65W vs 105W)

Score

AMD Ryzen 9 PRO 7945

VS

Xeon E7 2820

General Parameters

Jun 2023

Release Date

Apr 2011

AMD

Manufacturer

Intel

Server

Type

Server

Raphael

Core Architecture

Westmere-EX

AMD Socket AM5

Socket

Intel Socket 1567

Radeon Graphics

Integrated Graphics

N/A

Ryzen 9 (Zen 4 (Raphael))

Generation

Xeon E7(Westmere-EX)

Package

13.14 billions

Transistor Count

2.6 billions

5 nm

Manufacturing Process

32 nm

65 W

Power Consumption

105 W

47 °C

Peak Operating Temperature

-

TSMC

Foundry

Intel

2x71 mm²

Die Size

513 mm²

6 nm

I/O Process Size

-

122 mm²

I/O Die Size

-

CPU Performance

3.7 GHz

Performance Core Base Frequency

2 GHz

5.4 GHz

Performance Core Turbo Frequency

2.266 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

133 MHz

37.0

Multiplier

15.0

64 KB per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

256 KB per core

64 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR5-5200

Memory Types

DDR3-1333

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

5

PCIe Version

-

24

PCIe Lanes

-

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