AMD EPYC 7401 24-core Socket FT1

The EPYC 7401 ranks in the 97th percentile for platform thanks to 128 PCIe 3.0 lanes and 2TB of memory support. But its efficiency score of 15.8 out of 100 is one of the worst we've seen, and multi-thread performance sits in the 29th percentile. Buy it for I/O and memory expansion, not for speed.

Let's be blunt: the EPYC 7401 is not fast by today's standards. The 2.0GHz base clock means sustained all-core workloads will feel sluggish, and even the 3.0GHz boost only helps in short bursts. Our multi-thread score lands in the 29th percentile, which puts it behind most modern desktop chips despite having 24 cores and 48 threads. Single-thread is even worse at the 33rd percentile. If you're running databases or applications that need snappy per-core performance, this chip will frustrate you.

But the platform story is where this thing earns its keep. The 97th percentile platform ranking comes from that massive 128-lane PCIe 3.0 setup and the eight-channel memory controller. You can stuff 16 DIMMs with up to 2TB of DDR4-2666. For a storage server, a hypervisor running dozens of VMs, or a box that needs to talk to a pile of NVMe drives, that's a lot of headroom. The 64MB of L3 cache helps with some workloads, but it's not enough to overcome the clock speed deficit. This is a chip you buy for its connectivity, not its compute.

Stacked against the Intel Core Ultra 9 285K, the EPYC 7401 looks ancient. The 285K will absolutely demolish it in single-thread and multi-thread workloads, and it does so while sipping power. But the 285K can't touch the EPYC's 128 PCIe lanes or 2TB memory ceiling. That's the trade-off: modern desktop chips are faster, but server platforms give you expandability. The D&H Core i9 X-Series BX80673I99900X is another desktop part that will outrun the EPYC in most compute tasks, but again lacks the I/O. The Lenovo Ryzen 5 Sparepart is a budget option that's more efficient but far less capable in multi-threaded server roles. If you need a cheap virtualization box with tons of storage connectivity, the EPYC 7401 wins. If you need raw speed, any modern desktop chip beats it.

Pricing here is all over the map. In the US you can find it for $423, and UK buyers see it at £421. But the EUR listings tell the real story: prices range from €378 to €1,396 across three listings in Germany, Spain, and France. That's a €1,018 spread for the same chip. If you're in the Eurozone, the €378 listing is the obvious move, and honestly at that price this chip makes a compelling case for a budget home lab. The CAD price of $2,309 is absurd by comparison, and we'd tell any Canadian buyer to look elsewhere. For the money, you're getting a ton of I/O and memory bandwidth, but you're paying for it in power draw and heat. The affordability percentile of 12th means this chip is not cheap relative to what it delivers in raw performance.

The AMD EPYC 7401 is a server chip that's all about platform muscle, not raw speed. Our database puts it in the 97th percentile for platform, which means the I/O and memory setup here is genuinely top-tier. You get 128 PCIe 3.0 lanes and eight memory channels supporting up to 2TB of DDR4. That's the kind of connectivity that makes a storage server or virtualization host very happy. But the core performance tells a different story. With a 2.0GHz base clock and 3.0GHz boost across 24 cores, this thing ranks in the 29th percentile for multi-thread and 33rd for single-thread. It's a first-gen EPYC, and it shows its age when you push it hard.

So what you're really buying is a platform, not a speed demon. The 64MB of L3 cache is fine for the era, but the efficiency score of 15.8 out of 100 is rough. This chip pulls a lot of power for the work it does. If you're building a home lab around cheap DDR4 and need tons of PCIe lanes for NVMe drives or network cards, the value proposition starts to make sense. Just don't expect it to keep up with anything modern in a straight-line race.

Skip this if you care about power efficiency or single-thread speed. The 15.8 out of 100 efficiency score is a real problem for anyone running 24/7 workloads, and the 33rd percentile single-thread performance will make interactive applications feel sluggish. If you're building a workstation or a compute-heavy server, a modern desktop chip like the Intel Core Ultra 9 285K will run circles around it while using less power. Also skip it if you're in Canada, where the $2,309 CAD price is nearly double what it should be. This chip only makes sense at the low end of the EUR range, around €378, and only for I/O-heavy roles.

The EPYC 7401 is a niche buy. The 97th percentile platform score is the headline, and it's the reason you'd consider this chip at all. For a home lab or a budget storage server, the combination of 128 PCIe 3.0 lanes, eight memory channels, and 24 cores is genuinely useful. But the efficiency score of 15.8 out of 100 is a dealbreaker for anyone paying their own power bill. And the multi-thread performance in the 29th percentile means you're not getting much compute for those watts. If you can find it at the low end of the EUR range, around €378, it's a reasonable platform investment. At anything close to €1,396 or the CAD price, you're overpaying for old silicon.