AMD Opteron 6281 vs Intel Xeon E-2224 Comparison

The Verdict

The recorded data presents an unusually close pairing. Across all six Cinebench benchmarks, the AMD Opteron 6281 wins every single test, but by margins of only 1.2% to 1.5%. The Intel Xeon E-2224 never takes a single win in these measurements. For a buyer choosing strictly on benchmark performance, the Opteron 6281 is the correct pick, as it holds a slim but consistent edge in both single-core and multi-core workloads.

However, the context matters. The Opteron 6281 is a 16-core, 16-thread server part from the Opteron 6000 series, while the Xeon E-2224 is a 4-core, 4-thread workstation processor from the Xeon E-2200 series. The database shows the Opteron’s average benchmark score at 1789, placing it in the 42nd percentile of all CPUs. The Xeon E-2224 averages 1762, sitting in the 41st percentile. These percentile ranks are nearly identical, confirming that the two processors perform at the same overall level despite their radically different core counts and ages.

The Xeon E-2224 is not a bad choice; it simply loses every head-to-head measurement. The Opteron 6281 wins by margins that are within measurement noise for some workloads, but the consistency across all three Cinebench versions (R15, R20, R23) suggests the advantage is real. If the task is purely maximizing Cinebench scores, the Opteron 6281 is the one to select. If the workload relies on features beyond these benchmarks, the choice shifts, as detailed in the sections below.

Where Each One Wins

The AMD Opteron 6281 wins all six recorded benchmarks, so the use-case split is one-sided in terms of raw scores. The largest margin is 1.5%, appearing in Cinebench R15 multi-core, R20 multi-core, R23 multi-core, and R23 single-core. The smallest margin is 1.2%, seen in Cinebench R15 single-core. The R20 single-core test shows a 1.4% lead for the Opteron.

The Xeon E-2224, despite having zero wins, wins in areas not covered by these benchmarks. It supports DDR4 memory, while the Opteron 6281 uses DDR3. It also includes integrated graphics (UHD Graphics P630), whereas the Opteron 6281 has no integrated graphics at all. The Xeon runs on Intel Socket 1151 with PCIe Gen 3 (16 lanes from the CPU), while the Opteron uses AMD Socket G34 with PCIe Gen 2. For systems that need integrated display output or newer memory technology, the Xeon E-2224 is the practical choice, even though it loses every Cinebench test.

The Opteron 6281’s wins come from its 16 cores versus 4, but the scores show that raw core count does not translate into a large performance gap. The Xeon’s higher clocks (3.40 GHz base, 4.60 GHz boost versus 2.50 GHz base, 3.20 GHz boost) close most of the gap. In multi-core tests, the Opteron wins by 1.5%, which is far smaller than the 4x core advantage would suggest. In single-core tests, the Opteron still wins, which is surprising given the Xeon’s 1.4 GHz boost advantage, but the recorded data shows the Opteron ahead by 1.2% to 1.5%.

Architecture Differences

The two processors come from different manufacturing generations and design philosophies. The AMD Opteron 6281 uses the Bulldozer architecture, codenamed Interlagos, built on a 32 nm process at GlobalFoundries. It has 2,400 million transistors across a dual-die design with each die measuring 315 mm². The cache layout is unusual: 768 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. This is a modular design where pairs of cores share resources.

The Intel Xeon E-2224 uses the Coffee Lake architecture, specifically Coffee Lake-S WS, built on Intel’s 14 nm process. The die size is 126 mm², much smaller than the Opteron’s dual-die setup. The cache is per-core: 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3. This is a traditional 4-core design with dedicated resources per core.

Memory support differs significantly. The Opteron 6281 supports DDR3 in a quad-channel configuration, yielding 51.2 GB/s of bandwidth. The Xeon E-2224 supports DDR4 in a dual-channel configuration, yielding 42.7 GB/s. Despite the Xeon using newer memory, the Opteron has higher theoretical bandwidth due to four channels versus two. Both support ECC memory, which is expected for server and workstation parts.

The Opteron 6281 has no integrated graphics. The Xeon E-2224 includes UHD Graphics P630. The Opteron uses PCIe Gen 2, while the Xeon uses PCIe Gen 3 with 16 CPU lanes. The production status for both is end-of-life, so neither is a current-generation product. The release dates are far apart: the Opteron launched in 2012, the Xeon in 2019.

FAQ

Q: Which CPU has more cores?

A: The AMD Opteron 6281 has 16 cores and 16 threads. The Intel Xeon E-2224 has 4 cores and 4 threads.

Q: Which CPU wins in Cinebench R23 multi-core?

A: The AMD Opteron 6281 wins with a score of 6187 versus 6093 for the Xeon E-2224, a margin of 1.5%.

Q: Does the Intel Xeon E-2224 have integrated graphics?

A: Yes, it includes UHD Graphics P630. The AMD Opteron 6281 has no integrated graphics.

Q: What memory types do these CPUs support?

A: The Opteron 6281 supports DDR3 in a quad-channel configuration with 51.2 GB/s bandwidth. The Xeon E-2224 supports DDR4 in a dual-channel configuration with 42.7 GB/s bandwidth. Both support ECC memory.

Q: Which CPU has a higher boost clock?

A: The Intel Xeon E-2224 has a boost clock of 4.60 GHz, compared to 3.20 GHz for the AMD Opteron 6281.

Q: What are the average benchmark scores?

A: The Opteron 6281 has an average benchmark score of 1789, placing it in the 42nd percentile. The Xeon E-2224 has an average score of 1762, placing it in the 41st percentile.

Head-to-Head Benchmarks

The head-to-head data shows a clean sweep for the AMD Opteron 6281. In Cinebench R15 multi-core, the Opteron scores 623 against 614 for the Xeon, a 1.5% win. In R15 single-core, the Opteron scores 87 versus 86, a 1.2% win. The R20 tests follow the same pattern: multi-core shows 2598 versus 2559 (1.5% lead), and single-core shows 366 versus 361 (1.4% lead). The R23 tests round out the sweep: multi-core at 6187 versus 6093 (1.5% lead) and single-core at 873 versus 860 (1.5% lead).

The consistency of the margin is notable. Every multi-core test shows exactly 1.5% difference. The single-core margins vary slightly: 1.2% in R15, 1.4% in R20, and 1.5% in R23. This suggests that the Opteron’s advantage scales slightly with workload intensity, but the overall picture is of two processors performing at nearly the same level.

The nearest rivals listed in the database put these scores in context. The Opteron 6281’s closest competitor is the AMD Ryzen 3 3200GE, with an average score of 1787, a 0.1% difference. Other nearby rivals include the AMD Ryzen 3 PRO 1300 (1778, 0.6% difference) and the Intel Xeon E5-4610 v3 (1777, 0.7% difference). On the Intel side, the Xeon E-2224’s nearest rival is the Intel Core i5-5675C (1759, 0.2% difference), followed by the AMD Ryzen 5 2400GE (1766, -0.2% difference) and the Intel Xeon E3-1241 v3 (1756, 0.3% difference). These rival scores confirm that both processors sit in the same performance tier, with the Opteron just barely ahead.

Specification Differences

The two processors differ in nearly every core specification. The AMD Opteron 6281 has 16 cores and 16 threads, while the Intel Xeon E-2224 has 4 cores and 4 threads. Base clocks are 2.50 GHz versus 3.40 GHz, and boost clocks are 3.20 GHz versus 4.60 GHz, both in favor of the Intel part. The Opteron has a TDP of 130 watts, while the Xeon has a TDP of 71 watts, making the Intel part much more power-efficient on paper.

The sockets are incompatible: AMD Socket G34 for the Opteron, Intel Socket 1151 for the Xeon. The process nodes differ: 32 nm for the Opteron (GlobalFoundries) versus 14 nm for the Xeon (Intel). The Opteron uses a dual-die design with 2x 315 mm² dies, while the Xeon uses a single 126 mm² die. Transistor count is listed only for the Opteron at 2,400 million.

Cache configurations are entirely different. The Opteron has 768 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. The Xeon has 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3. Memory support differs as noted: DDR3 quad-channel versus DDR4 dual-channel. PCIe generation is Gen 2 for the Opteron and Gen 3 for the Xeon. The Xeon includes integrated graphics, the Opteron does not. The launch MSRP values are $988 for the Opteron and $193 for the Xeon, reflecting their different market positions at launch.