AMD Opteron 4274 HE vs AMD Ryzen 5 1400 Comparison

The AMD Opteron 4274 HE and the AMD Ryzen 5 1400 are separated by nearly six years of architecture and market intent, yet both land at the same 37th percentile in the global CPU benchmark distribution. Their average benchmark scores are almost identical — 1420 for the Opteron versus 1410 for the Ryzen — but that parity masks radically different performance profiles. The Opteron is an eight-core server part built on Bulldozer, while the Ryzen 5 1400 is a four-core, eight-thread desktop chip built on Zen. The data shows that the Ryzen wins three of the four head-to-head comparisons, but the Opteron delivers one decisive counterpunch in a specific workload.

Head-to-Head Benchmarks

The most striking result in the comparison is the Cinebench R23 multi-core test, where the Opteron 4274 HE beats the Ryzen 5 1400 by a substantial margin. The Opteron scores 4909, while the Ryzen manages 3985, giving the Opteron a 23.2% advantage. This is the only benchmark in the head-to-head set that the Opteron wins, and it wins it clearly. The reason appears to be raw core count: the Opteron has eight physical cores, while the Ryzen has four cores with simultaneous multithreading. In a fully threaded render workload that scales with physical cores, the older server chip's extra silicon pays off.

Every other benchmark in the comparison favors the Ryzen 5 1400, and some of the margins are large. The most extreme gap is in Cinebench R15 single-core, where the Ryzen scores 133.75 against the Opteron's 69. That is a 48.4% difference — the Ryzen delivers nearly double the single-thread performance. This is not a subtle advantage; it is a generational leap in per-core efficiency. The Ryzen also wins Cinebench R15 multi-core with a score of 688 versus the Opteron's 494, a 28.2% margin. Here, the Ryzen's eight threads outperform the Opteron's eight physical cores, which indicates that the Bulldozer architecture's integer cores are significantly less efficient per unit of work than Zen's.

The fourth benchmark, Cinebench R23 single-core, continues the trend. The Ryzen scores 832, the Opteron 693, giving the Ryzen a 16.7% win. This is a smaller gap than the R15 single-core result, but it still shows a clear per-thread advantage for the newer architecture. Across the four tests, the Ryzen wins three and the Opteron wins one. The pattern is consistent: the Opteron's advantage is purely in heavily threaded, multi-core workloads, while the Ryzen's advantage is everywhere else — especially where single-thread speed matters.

FAQ

Q: Which CPU has the higher average benchmark score?

A: The Opteron 4274 HE has an average benchmark score of 1420, while the Ryzen 5 1400 scores 1410. The difference is only 10 points, or roughly 0.7%, which places both processors at the same 37th percentile of all CPUs.

Q: How much faster is the Ryzen 5 1400 in single-core performance?

A: In Cinebench R15 single-core, the Ryzen scores 133.75 versus the Opteron's 69, a 48.4% advantage. In Cinebench R23 single-core, the Ryzen scores 832 versus 693, a 16.7% advantage. The single-core gap narrows in the newer benchmark but remains firmly in the Ryzen's favor.

Q: Is the Opteron ever faster than the Ryzen?

A: Yes, in Cinebench R23 multi-core, the Opteron scores 4909 versus the Ryzen's 3985, a 23.2% advantage. This is the only head-to-head benchmark the Opteron wins, and it wins by a wide margin, likely due to its eight physical cores versus the Ryzen's four.

Q: Do both CPUs support ECC memory?

A: Yes, both the Opteron 4274 HE and the Ryzen 5 1400 have ECC memory support listed in their specifications. This is a significant feature for anyone building a workstation or small server where data integrity matters.

Q: What is the memory bandwidth difference between the two?

A: The Ryzen 5 1400 supports DDR4 memory with a dual-channel bus and a bandwidth of 42.7 GB/s. The Opteron 4274 HE supports DDR3 memory, also dual-channel, but with a lower bandwidth of 25.6 GB/s. The Ryzen offers 67% more memory bandwidth on paper.

Q: Are there any benchmark tests where the scores are close?

A: The closest result is in Cinebench R23 single-core, where the Ryzen's 832 beats the Opteron's 693 by 16.7%. The R15 single-core test is the largest gap at 48.4%. In the multi-core tests, the margins are 23.2% (R23) and 28.2% (R15) — all results are decisive wins for one side or the other.

Architecture Differences

The two CPUs represent radically different design philosophies from AMD. The Opteron 4274 HE is built on the Bulldozer architecture, codenamed Valencia, using a 32 nm process node from GlobalFoundries. It has 1,200 million transistors on a 315 mm² die. The Ryzen 5 1400 uses the Zen architecture, also codenamed Zen (Summit Ridge), on a 14 nm process node from the same foundry. It packs 4,800 million transistors into a smaller 213 mm² die. The transistor density is dramatically higher in the Ryzen — roughly four times the transistor count in two-thirds the die area.

Core and cache configurations differ substantially. The Opteron has 8 cores and 8 threads, with a 384 KB L1 cache, 8 MB of L2 cache, and 8 MB of shared L3 cache. The Ryzen has 4 cores and 8 threads (using simultaneous multithreading), with a 96 KB L1 cache per core, 512 KB L2 cache per core, and 8 MB of shared L3 cache. The Ryzen's per-core cache allocation is larger, which helps explain its superior single-thread performance. The Opteron's cache is shared more broadly across its eight physical cores.

The memory and I/O systems also differ by generation. The Opteron uses DDR3 memory on a dual-channel bus with 25.6 GB/s bandwidth, while the Ryzen uses DDR4 with 42.7 GB/s bandwidth. PCIe support is Gen 2 on the Opteron and Gen 3 with 16 CPU lanes on the Ryzen. The Opteron uses the AMD Socket C32 platform, while the Ryzen uses Socket AM4. The Opteron's multiplier is locked, while the Ryzen's is unlocked, allowing user overclocking. The Opteron was released in 2011 and is end-of-life, while the Ryzen was released in 2017 and remains active.

The Verdict

The data points to a clear split. If the workload is heavily threaded and scales well beyond four cores, the Opteron 4274 HE's eight physical cores give it a real advantage, as shown by its 23.2% win in Cinebench R23 multi-core. This makes it a plausible choice for specific server or workstation tasks that can use all available cores. However, that is a narrow use case. The Ryzen 5 1400 wins three of the four head-to-head tests, including both single-core benchmarks and the R15 multi-core test. Its single-core advantage ranges from 16.7% to 48.4%, which affects everything from everyday responsiveness to lightly threaded applications.

The Ryzen also brings modern platform features: DDR4 memory with significantly higher bandwidth, PCIe Gen 3, an unlocked multiplier, and an active production status. The Opteron is end-of-life, locked, and limited to DDR3. For nearly all desktop and most professional workloads, the Ryzen 5 1400 is the better choice. The Opteron's only clear win is in a specific, heavily threaded render scenario, and even then, the Ryzen's R15 multi-core score of 688 versus the Opteron's 494 suggests the Ryzen's eight threads are more efficient than the Opteron's eight cores in older benchmark versions. The Opteron's R23 win may reflect benchmark-specific scaling rather than a general-purpose advantage.

Specification Differences

The two CPUs differ on nearly every specification that matters. The core count is 8 for the Opteron versus 4 for the Ryzen, though both have 8 threads. The base clock is 2.50 GHz for the Opteron versus 3.20 GHz for the Ryzen, while the boost clock is 3.50 GHz for the Opteron versus 3.40 GHz for the Ryzen. The process node is 32 nm for the Opteron versus 14 nm for the Ryzen. Transistor count is 1,200 million versus 4,800 million, and die size is 315 mm² versus 213 mm².

Cache layouts are not directly comparable. The Opteron has 384 KB L1, 8 MB L2, and 8 MB shared L3. The Ryzen has 96 KB L1 per core, 512 KB L2 per core, and 8 MB shared L3. Memory support is DDR3 for the Opteron and DDR4 for the Ryzen, with memory bandwidth of 25.6 GB/s versus 42.7 GB/s. PCIe is Gen 2 for the Opteron and Gen 3 with 16 lanes for the Ryzen. Sockets are C32 versus AM4. The multiplier is locked on the Opteron and unlocked on the Ryzen. The release dates are 2011 for the Opteron and 2017 for the Ryzen. The Opteron's launch MSRP was $377; the Ryzen's was $169. Both have a TDP of 65 watts.

Where Each One Wins

The Opteron 4274 HE wins in scenarios where the software can saturate eight physical cores. The Cinebench R23 multi-core result of 4909 versus 3985 shows that this chip can pull ahead in modern render workloads that are optimized for many cores. If you are running a dedicated render node or a heavily threaded batch job that uses every available core, the Opteron's extra two physical cores (relative to the Ryzen's four) provide a measurable 23.2% advantage. This is also a server-class part with ECC memory support, which matters for long-running, error-sensitive compute tasks.

The Ryzen 5 1400 wins everywhere else. It dominates single-core performance with margins between 16.7% and 48.4%, which translates to faster application launches, snappier UI response, and better performance in lightly threaded software. It also wins Cinebench R15 multi-core by 28.2%, which suggests that in many older multi-threaded workloads, the Ryzen's eight threads outperform the Opteron's eight cores. The Ryzen's DDR4 memory support with 67% more bandwidth and PCIe Gen 3 make it a better fit for modern systems. Its unlocked multiplier offers overclocking headroom the Opteron lacks. For a desktop user, a workstation running typical professional applications, or anyone who values single-thread speed and modern platform features, the Ryzen 5 1400 is the clear pick. The Opteron's niche is narrow: specific, heavily threaded server tasks where its eight physical cores and ECC support outweigh its per-core weaknesses.