Comparing AMD Phenom II X4 840 vs AMD Ryzen 9 3900X ❁ Best Computer CPU Processors

Overall score

Released
Q1/2011

AMD Phenom II X4 840

Released
Q3/2019

Overall score

AMD Ryzen 9 3900X

Comparison of video cards. AMD Phenom II X4 840 vs AMD Ryzen 9 3900X in benchmarks and specifications. There are several parameters to consider when choosing the best budget processor. Gamers are interested in the base clock speed, boost potential, integrated graphics, and price/performance ratio. Consider the following as well:
- What's the best budget processor?
- What is the best budget processor for a gaming PC?
- What processor do professional gamers use?
The best budget processors at your disposal.

Differences Performance tests Specifications

Differences

Reasons to consider
AMD Phenom II X4 840

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Performance per watt

95 W 105 W

About 1.11 0.97 times less performance per watt

Reasons to consider
AMD Ryzen 9 3900X

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Higher clock speed

3.80 GHz 3.20 GHz

Around 16% better clock speed
More number of cores

12 4

3 times more cores

Performance tests

Real tests AMD Phenom II X4 840 vs AMD Ryzen 9 3900X

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11

AMD Phenom II X4 840

AMD Ryzen 9 3900X

214

Cinebench R15 (Multi-Core)

Cinebench R15 can be used for multi-core processor performance benchmark testing

AMD Phenom II X4 840

324

AMD Ryzen 9 3900X

3168

Geekbench 5, 64bit (Single-Core)

A while ago, there was no competition on the computer processors market

AMD Phenom II X4 840

388

AMD Ryzen 9 3900X

1300

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory

AMD Phenom II X4 840

1294

AMD Ryzen 9 3900X

12454

Estimated results for PassMark CPU Mark

The CPUmark value is a measure of the CPU's performance

AMD Phenom II X4 840

3987

AMD Ryzen 9 3900X

31947

Specifications

Complete list of technical specifications

AMD Phenom II X4 840

AMD Ryzen 9 3900X

CPU generation and family

Let's compare the difference in processor generations between processor {AMD Phenom II X4 840} and {AMD Ryzen 9 3900X}. The higher the generation and the more recent generation of the model, the better. Keep in mind the following: - What is the best processor? - What is the most powerful CPU in the world? -Which CPU is best for gaming? We offer a guide on the best processor options for both desktops and laptops. This will help you to decide which processor you need and whether it's worth spending more money on a newer-generation processor.