AMD Epyc 7742 Review

High-end server processor released in 2019 with 64 cores and 128 threads. With base clock at 2.25GHz, max speed at 3.4GHz, and a 225W power rating. Epyc 7742 is based on the Rome 7nm family and part of the EPYC series.
Price 39.4%
Speed 71%
Productivity 146%
Gaming 87%
Category Server
Target high-end
Socket Compatibility P3
Integrated Graphics
Cooler Included
Overclock Potential 0 %
Year 2019 Model
Price 6950 USD
Number of Cores 64 Cores
Number of Threads 128 Threads
Core Frequency 2.25 GHz
Boost Frequency 3.4 GHz
Max Stable Overclock 3.4 GHz
Power Consumption 225 W
Manufacturing Process 7 nm
L3 Cache 256 MB
Maximum Supported Memory 4096 GB
Price-Value Score 39.4 %
Speed Score 71 %
Productivity Score 146 %
Gaming Score 87 %
Max 1080p Bottleneck 32.7 %
Max 1440p Bottleneck 16.3 %
Max 4K Bottleneck 8.2 %
Overall Score 48/100

The Epyc 7742 is one of AMD's high-end Server processors. It was released in 2019 with 64 cores and 128 threads. With base clock at 2.25GHz, max speed at 3.4GHz, and a 225W power rating. The Epyc 7742 is based on the Rome 7nm family and is part of the EPYC series.

One thing that the switch to 7nm silicon has allowed for however, is an increase in cache size. AMD is now describing its L3 and L2 cache in a combined spec of 512K (per core) and 256.00. But, because the 7nm CPU cores are contained within their own chiplets, AMD was able to pack much more in – with a whopping 512K (per core) and 256.00. This is a really big deal, as it allows for much faster performance, especially when you’re shooting for high framerates in 1080p games, and will be especially effective in old esports titles like Counter Strike: Global Offensive.

The AMD Epyc 7742 is an absolute behemoth of a processor, as it absolutely should be with its 64 cores, 128 threads and high price tag. If you’re looking for the absolute best processor money can buy on a mainstream processor, then look no further. Whether you’re playing PC games or even doing hardcore video and 3D work, the AMD Epyc 7742 can handle them with ease.

Over the last couple years, AMD has been reaching for dominance in the desktop CPU world, and with the AMD Epyc 7742, it's finally there.

As the higher-priced version of the Epyc 7702, the Epyc 7742 has higher base and Boost frequencies of 2.25 and 3.4 GHz, respectively. That's an increase in base frequency and a bump to boost clocks, but the real advantage should lay in the higher Package Power Tracking (PPT) envelope, which is a measurement of the maximum amount of power delivered to the socket. The Epyc 7702's PPT tops out at 200W, while the motherboard can pump up to 142W to the Epyc 7742 at peak performance. That opens up much more aggressive boost behavior, on both single and multiple cores, that could widen the performance gap beyond what we see on the spec sheet.

Value seekers who aren't afraid to press the Precision Boost Overdrive button and have sufficient cooling should look to the Epyc 7702 for roughly equivalent performance to the Epyc 7742, particularly if gaming factors heavily into the buying decision. That could save you money, reinforcing our decision to give the Epyc 7702 an Editor's Choice award.

The AMD Epyc 7742, like the rest of AMD's Rome processors, is built on a 7nm manufacturing node – the smallest in a commercially available CPU. What this means for most people is lower power consumption and much improved performance at the same time.

What this all means is that the AMD Epyc 7742 is an absolute beast when it comes to multi-threaded workloads, especially at this price point. If you're counting on doing some video editing or compiling one hell of an Excel spreadsheet, you're going to see firsthand a performance boost with the Epyc 7742.

If extended overclocking and boost frequencies are trivial matters to you, AMD also offers the Epyc 7702 at $8000. It’s still outfitted with 64-cores and 128-threads, but clocks in at a slower 2GHz and maxes out at only 3.35GHz.

Now the biggest question is can AMD’s EPYC processor play games? The answer is simply yes as it got a respectable gaming score of 87% in our benchmarks.

Regardless of those external factors, the Epyc 7742 proves it has the chops to be your main gaming system and a just as effective media creation platform – two things that are becoming intrinsically connected in this age of live-streaming, eSports and uploading gameplay videos.

The Epyc 7742 clocks up to 3.4Ghz just as it promises on the box, and with AMD’s software you can take one of the cores all the way up to 3.5GHz. However, don’t expect to get much beyond that without seriously upgrading your cooling solution and manually tweaking voltages behind the operating system level.

Intel Vs AMD: Which CPU is Best?

Jul 12, 2020 - A rivalry for the ages, and a question often asked and wondered about. Whenever you want to build or upgrade your PC, you have to make a decision: Buy an Intel or AMD processor?

Impact of RAM Size and Speed on Gaming Performance

Jul 5, 2020 - The best performance to price value mid-range cpus are here. Find out more in this comprehensive review and summary of the Core i5-10600K vs Ryzen 5 3600X's capabilities.

Why You Should Always Buy a Mid-to-High-Range Gaming PC?

Jun 23, 2020 - Mid- and high-range builds perform very well for their price, and are better than the entry-level in terms of power, longevity, and reliability, and they offer more bang for your buck especially when looking at their price-by-year advantage.

Should you buy a Pre-Built PC or a Custom PC?

Jun 11, 2020 - Pre-built systems are an attractive option for those who are less concerned with the minute details of every component in their build. Building your own PC is the best solution for those who want full control over every aspect of their build. It provides the most thorough customization options, from the CPU to the fans and lighting.

How to use CPUAgent To Find The Right CPU

Jun 2, 2020 - How to find the Right CPU? Whether you’re building or upgrading a PC, the processor matters a lot. CPUAgent is the right tool to help you find and choose the right CPU for your needs.

10600K vs 3600X: Battle of the mid-range CPUs

May 23, 2020 - The best performance to price value mid-range cpus are here. Find out more in this comprehensive review and summary of the Core i5-10600K vs Ryzen 5 3600X's capabilities.

10700K vs 3700X: Specs, 80+ Game Benchmarks, Bottleneck, and Streaming Analysis

May 22, 2020 - Which one is worth it, Core i7-10700K or Ryzen 7 3700X? Find out in this comprehensive review and summary of the Core i7-10700K vs Ryzen 7 3700X's capabilities.

10900K vs 3900X: Specs, 80+ Game Benchmarks, Bottleneck, and Streaming Analysis

May 21, 2020 - 10 cores vs 12 cores. Top-of-the-line very high-end cpus duke it out.

2500K vs 3570K vs 4670K vs 6600K vs 7600K vs 8600K vs 9600K vs 10600K: Should you consider upgrading?

May 21, 2020 - In this massive comparison across 8 generations of Intel Core i5 series CPUs, we explore the performance improvements by generation and whether it is reasonable or not to upgrade to Intel's latest.

Critics Reviews