AMD Opteron 6238 vs Intel Core i5-1030NG7 Comparison

# AMD Opteron 6238 vs Intel Core i5-1030NG7: A Generational Divide

The benchmark data paints a striking picture: two processors released nearly a decade apart, built for entirely different markets, yet producing almost identical Cinebench scores. The AMD Opteron 6238, a 12-core server part from 2011, edges out the Intel Core i5-1030NG7, a low-power mobile chip from 2020, in every single head-to-head test — but by margins so slim they might as well be statistical noise. The average benchmark scores tell the same story: 1383 for the Opteron versus 1376 for the Core i5, a gap of just 0.5%. Both sit at the 36th percentile of all CPUs tracked. The data suggests these are performance equals, despite their radically different designs.

Head-to-Head Benchmarks

The Opteron 6238 wins all six Cinebench comparisons, but the margins are remarkably consistent and uniformly tiny. In Cinebench R15 multicore, the Opteron scores 481 against the Core i5's 479, a 0.4% advantage. Single-core R15 is a dead heat: both score exactly 67, with the Opteron declared the winner at 0% delta — a tie broken by the benchmark's internal rounding, not by any real performance difference.

Moving to Cinebench R20, the pattern holds. The Opteron's multicore score of 2008 beats the Core i5's 1998 by 0.5%. Single-core R20 shows the Opteron at 283 versus 281, a 0.7% edge — the largest margin in the entire comparison. In Cinebench R23, the Opteron posts 4781 multicore against 4759 for the Core i5, another 0.5% win, and 675 single-core versus 671, a 0.6% advantage.

What does this mean? The Opteron's best win is 0.7%, and its average win across all six tests is roughly 0.45%. These deltas are within run-to-run variance for most benchmarking software. The data indicates that in raw Cinebench throughput, these two processors are functionally identical. The Opteron's 12 cores and 12 threads cannot translate its massive physical advantage into meaningful performance gains over the Core i5's 4 cores and 8 threads. The single-core scores, where the Opteron wins by 0 to 0.7%, are particularly telling: the Core i5's much higher boost clock (3.50 GHz versus 3.20 GHz) and modern Sunny Cove architecture should theoretically dominate, yet the results show parity. This suggests the Opteron's older architecture still delivers respectable per-thread performance, or that Cinebench's workload characteristics favor the Opteron's design in ways that don't generalize.

The Verdict

The data presents a conundrum. The Opteron 6238 wins every benchmark, yet the wins are so narrow that no workload would show a perceptible difference. Both processors sit at the 36th percentile of all CPUs, and their nearest rivals cluster tightly: the Opteron's closest competitors are the Intel Core i7-3615QE (1381, 0.2% behind) and the AMD Opteron 6366 HE (1379, 0.3% behind), while the Core i5's nearest rivals include the Intel Core i5-4690 (1375, 0.1% behind) and the AMD Ryzen 3 PRO 1200 (1379, 0.2% behind). The two processors are surrounded by similar-performing parts from both camps.

From the data alone, the choice depends on context, not performance. The Opteron 6238 targets server and workstation deployments, with ECC memory support and quad-channel DDR3. The Core i5-1030NG7 targets mobile devices, drawing just 10W TDP against the Opteron's 115W — a massive efficiency gap. For anyone building a system where power consumption and heat dissipation matter, the Core i5 is the only rational choice, since it delivers the same performance at roughly one-twelfth the TDP. For legacy server environments requiring ECC memory and multi-channel bandwidth, the Opteron's feature set is irreplaceable by the Core i5, which lacks ECC entirely. Neither chip is a winner on raw speed; the winner is defined by platform requirements.

Architecture Differences

The architectural chasm between these two processors is vast. The Opteron 6238 uses AMD's Bulldozer architecture, codenamed Interlagos, built on a 32 nm process at GlobalFoundries. It packs 2,400 million transistors across a dual-die design measuring 2x 315 mm². The Core i5-1030NG7 uses Intel's Ice Lake architecture, specifically the Sunny Cove microarchitecture in the Ice Lake-Y configuration, built on Intel's 10 nm process with a die size of 123 mm² — less than one-fifth the silicon area of the Opteron, yet delivering comparable performance.

The cache hierarchies reflect their different design philosophies. The Opteron offers 768 KB of L1 cache, 2 MB of L2 per module, and 8 MB of L3 per die. The Core i5 provides 80 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. The Opteron's massive L3 pool (16 MB total across two dies) serves its 12 cores, while the Core i5's 6 MB serves just 4 cores — a much more favorable cache-to-core ratio for the Intel part.

Memory support diverges completely. The Opteron uses DDR3 with a quad-channel bus, achieving 51.2 GB/s of bandwidth. The Core i5 uses DDR4 with a dual-channel bus, also achieving 51.2 GB/s. Identical bandwidth figures, but achieved through entirely different means: the Opteron relies on channel count to compensate for older memory technology, while the Core i5 gets there with faster DDR4. The Opteron supports ECC memory; the Core i5 does not. PCIe generation also differs: Gen 2 on the Opteron versus Gen 3 on the Core i5. The Core i5 includes integrated Iris Plus graphics with 64 execution units; the Opteron has no integrated graphics, as expected for a server part.

Specification Differences

The specification sheets diverge sharply. The Opteron 6238 offers 12 cores and 12 threads; the Core i5-1030NG7 offers 4 cores and 8 threads. The Opteron's base clock is 2.60 GHz with a boost of 3.20 GHz. The Core i5's base clock is listed at 1100.00 MHz — 1.10 GHz — with a boost of 3.50 GHz. The Core i5's boost clock is notably higher, yet its single-core scores barely match the Opteron's, which suggests the Opteron's per-thread performance is stronger than its clock speed alone would imply, or the Core i5's low base clock limits sustained single-core performance.

TDP is the starkest difference: 115W for the Opteron versus 10W for the Core i5. That's an 11.5x power draw gap for identical performance. The socket types are incompatible: AMD Socket G34 for the Opteron, Intel BGA 1044 for the Core i5. The Opteron is a server/workstation part; the Core i5 is a mobile part. Release dates span nearly nine years: November 2011 for the Opteron, March 2020 for the Core i5. Both are end-of-life and both have locked multipliers. The Opteron's launch MSRP was $455; the Core i5 has no listed launch MSRP. The Opteron's part number is OS6238WKTCGGU; the Core i5's is SRGM7.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6238 has 12 cores and 12 threads, compared to the Intel Core i5-1030NG7's 4 cores and 8 threads.

Q: How do their Cinebench R23 multicore scores compare?

A: The Opteron 6238 scores 4781, while the Core i5-1030NG7 scores 4759. The Opteron leads by 0.5%.

Q: Do both processors support ECC memory?

A: No. The Opteron 6238 supports ECC memory, while the Core i5-1030NG7 does not.

Q: What is the TDP of each processor?

A: The Opteron 6238 has a TDP of 115W, while the Core i5-1030NG7 has a TDP of 10W.

Q: Which processor has integrated graphics?

A: The Core i5-1030NG7 includes Iris Plus graphics with 64 execution units. The Opteron 6238 has no integrated graphics.

Q: How does their memory bandwidth compare?

A: Both achieve 51.2 GB/s, but through different configurations: the Opteron uses quad-channel DDR3, while the Core i5 uses dual-channel DDR4.

Where Each One Wins

The Opteron 6238 wins every benchmark in the head-to-head comparison, but the wins are so marginal that they only matter in synthetic benchmark competitions. Its real advantages lie elsewhere: ECC memory support for data integrity, quad-channel DDR3 for server workloads, and a 12-core design that, while not translating to Cinebench wins, may handle certain multi-threaded server tasks differently. Its launch MSRP of $455 positioned it as a mid-range server part, and its end-of-life status means it exists in legacy systems that require its specific Socket G34 platform.

The Core i5-1030NG7 wins decisively on efficiency. Its 10W TDP versus 115W makes it the obvious choice for any battery-powered or thermally constrained device. Its integration of Iris Plus graphics eliminates the need for a discrete GPU in basic systems. Its PCIe Gen 3 support and DDR4 memory compatibility align it with modern components. The Core i5's 4-core/8-thread configuration with Hyper-Threading provides better responsiveness for typical mobile workloads, even if Cinebench shows parity with the Opteron.

For a server administrator maintaining legacy infrastructure, the Opteron 6238 is the only option that fits the platform. For a mobile system builder, the Core i5-1030NG7 is the only option that fits the power budget. For anyone choosing between the two on pure performance, the data shows no meaningful difference — pick based on platform, power, and memory requirements, not benchmark scores.