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The Phenom II X4 820 is at least 2x slower gaming CPU than the Ryzen 7 7800X3D, however, it's a much better value for money, as it's $1488.26 cheaper!

Advantages of the Phenom II X4 820

  • Up to 97% cheaper$43.26 vs $1531.52
  • A much better value for money for gaming
  • Consumes up to 21% less energy95 vs 120 Watts

Advantages of the Ryzen 7 7800X3D

  • At least 2x faster CPU for gaming
  • Can execute more multi-threaded tasks simultaneously – 16 vs 4 threads

Phenom II X4 820 vs Ryzen 7 7800X3D for Gaming

The CPU's performance in selected game and settings

Phenom II X4 820 vs Ryzen 7 7800X3D in My Games

The FPS you'll get in saved games

The FPS you'll get in saved games

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Synthetic Benchmarks

The Phenom II X4 820 vs Ryzen 7 7800X3D in synthetic CPU benchmarks

AMD Phenom II X4 820 Logo

Phenom II X4 820

Sep 1st, 2009


Geekbench 6 Single-Core

314

12%

Geekbench 6 Multi-Core

923

6%

AMD Ryzen 7 7800X3D Logo

Ryzen 7 7800X3D

Jan 4th, 2023


Geekbench 6 Single-Core

2726

100%

Geekbench 6 Multi-Core

15147

100%

Performance Specifications

The Phenom II X4 820 vs Ryzen 7 7800X3D in core CPU performance specifications

AMD Phenom II X4 820 Logo

Phenom II X4 820

Sep 1st, 2009


Cores

4-core

50%

L3 Cache

4 MB

4%


Base Frequency

2.8 GHz

67%

Turbo Frequency

GHz

Max. DDR3 RAM Speed

1333 MHz

26%

AMD Ryzen 7 7800X3D Logo

Ryzen 7 7800X3D

Jan 4th, 2023


Cores

8-core

100%

L3 Cache

96 MB

100%


Base Frequency

4.2 GHz

100%

Turbo Frequency

5 GHz

100%

Max. DDR5 RAM Speed

5200 MHz

100%

Specifications

Comparison of all specifications

AMD Phenom II X4 820 Logo

Phenom II X4 820

Specifications

Comparison of all specifications

AMD Ryzen 7 7800X3D Logo

Ryzen 7 7800X3D

General
Sep 1st, 2009Release Date
Jan 4th, 2023
Not AvailableMSRP$449.00
Desktop
Segment
Desktop
AMD Socket AM3SocketAMD Socket AM5
DenebCodenameRaphael
95 W
Power Consumption120 W
Performance
4Cores
8
4Threads
16
2.8 GHzBase Frequency
4.2 GHz
Non-TurboTurbo Frequency5.0 GHz
4 MBL3 Cache
96 MB
Other Features
DDR3 @ 1333 MHzRAMDDR5 @ 5200 MHz
On certain motherboards (Chipset feature)Integrated GraphicsRadeon Graphics
NoOverclockableNo

Our users choose these builds when going for the Phenom II X4 820 or Ryzen 7 7800X3D

Our users choose these builds when going for the Phenom II X4 820 or Ryzen 7 7800X3D

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