AMD Opteron 6274 vs Intel Core i7-3615QE Comparison

The AMD Opteron 6274 and Intel Core i7-3615QE are two very different processors that end up in a statistical tie in overall benchmark averages, yet they achieve that parity through completely opposite design philosophies. The Opteron 6274 is a 16-core server chip built for multi-threaded throughput, while the i7-3615QE is a 4-core, 8-thread mobile part with integrated graphics. The data shows a near-perfect dead heat: the Opteron’s average benchmark score is 1387, and the i7’s is 1381, a difference of just 0.5% that places them as direct rivals in the database.

Where Each One Wins

The benchmark results are remarkably one-sided in terms of victory counts, but the margins are so narrow that they tell a story of near-equivalence. The AMD Opteron 6274 wins all six head-to-head benchmark comparisons listed. However, the largest margin of victory is just 1.5% in Cinebench R15 single-core, and every other win is between 0.4% and 0.5%. This means the Opteron wins on paper, but the practical difference in any real workload is negligible.

The use-case split is more about the surrounding platform than the raw benchmark scores. The Opteron 6274 is a server/workstation part, and its 16 physical cores are designed for heavily threaded server workloads, database serving, and virtualization — tasks that scale across many cores. The i7-3615QE, on the other hand, is a mobile processor with integrated Intel HD 4000 graphics, making it suited for laptops and compact systems where the CPU and GPU share the same package. The data does not show either chip winning a specific benchmark category by a meaningful margin, so the choice comes down to the system context: the Opteron belongs in a Socket G34 server board, while the i7 fits a BGA 1023 mobile platform with no need for a discrete GPU.

Architecture Differences

The two processors come from entirely different eras and design schools. The Opteron 6274 uses AMD’s Bulldozer architecture, codenamed Interlagos, built on a 32 nm process at GlobalFoundries. It has 16 cores and 16 threads, but the cache layout reveals the modular design: 768 KB of shared L1, 2 MB of L2 per module, and 8 MB of L3 per die. The chip is physically large, with a die size of 2x 315 mm² and 2,400 million transistors. It supports quad-channel DDR3 memory with 51.2 GB/s of bandwidth and ECC memory, and it uses PCIe Gen 2.

The Intel Core i7-3615QE is a completely different animal. It uses the Ivy Bridge architecture on a 22 nm process at Intel’s own foundry. It has 4 cores and 8 threads via Hyper-Threading. The cache is structured per-core: 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. The die is much smaller at 160 mm² with 1,400 million transistors. It runs dual-channel DDR3 memory, but the FACT PACK does not list a memory bandwidth figure. It has no ECC support, but it does include integrated Intel HD 4000 graphics, which the Opteron lacks entirely. The i7 also has a lower TDP of 45 watts versus the Opteron’s 115 watts, and it is a mobile part, while the Opteron is a server/workstation chip.

Head-to-Head Benchmarks

The six Cinebench comparisons show a consistent pattern of the Opteron edging ahead by fractions of a percent. In Cinebench R15 multi-core, the Opteron scores 483 against the i7’s 481, a 0.4% lead. The single-core result is the closest race: 68 versus 67, a 1.5% advantage for the Opteron. Moving to Cinebench R20, the Opteron again leads multi-core with 2014 versus 2005 (0.4%), and single-core with 284 versus 283 (0.4%). In Cinebench R23, the Opteron posts 4796 multi-core versus 4774 (0.5%), and 677 single-core versus 674 (0.4%).

The key observation is that the Opteron’s 16 cores provide no significant multi-core advantage over the i7’s 4 cores and 8 threads. The 16-core chip wins by 0.4% to 0.5% in multi-core tests, which is within run-to-run variance. The single-core results are even closer, with the Opteron winning by 1.5% at most. This suggests that the Opteron’s Bulldozer cores are individually slower than Intel’s Ivy Bridge cores, but the sheer core count barely compensates. The i7’s higher boost clock of 3.30 GHz versus the Opteron’s 3.10 GHz, and its newer 22 nm process, help it keep pace despite having a quarter of the physical cores.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6274 has 16 cores and 16 threads, while the Intel Core i7-3615QE has 4 cores and 8 threads.

Q: Do the extra cores of the Opteron translate to a big multi-core win?

A: No. The Opteron wins Cinebench R23 multi-core with 4796 versus the i7’s 4774, a lead of just 0.5%. The 16-core chip’s advantage is minimal in these tests.

Q: Which processor supports ECC memory?

A: The AMD Opteron 6274 supports ECC memory, while the Intel Core i7-3615QE does not.

Q: Does either processor have integrated graphics?

A: Only the Intel Core i7-3615QE has integrated graphics (Intel HD 4000). The AMD Opteron 6274 has no integrated graphics.

Q: How do the processors compare in average benchmark score?

A: The Opteron 6274 has an average benchmark score of 1387, while the i7-3615QE has 1381. The Opteron is 0.5% ahead, and the i7’s nearest rival list includes the Opteron with a delta of 0.5%.

Q: What are the TDP differences?

A: The Opteron 6274 has a TDP of 115 watts, and the i7-3615QE has a TDP of 45 watts. This reflects the server versus mobile design targets.

Specification Differences

The following fields differ between the two processors:

• Cores: 16 (Opteron) vs 4 (i7)
• Threads: 16 vs 8
• Base Clock: 2.20 GHz vs 2.30 GHz
• Boost Clock: 3.10 GHz vs 3.30 GHz
• TDP: 115 W vs 45 W
• Socket: AMD Socket G34 vs Intel BGA 1023
• Architecture: Bulldozer vs Ivy Bridge
• Codename: Interlagos vs Ivy Bridge
• Process Node: 32 nm vs 22 nm
• Foundry: GlobalFoundries vs Intel
• Transistors: 2,400 million vs 1,400 million
• Die Size: 2x 315 mm² vs 160 mm²
• L1 Cache: 768 KB (shared) vs 64 KB (per core)
• L2 Cache: 2 MB (per module) vs 256 KB (per core)
• L3 Cache: 8 MB (per die) vs 6 MB (shared)
• Memory Bus: Quad-channel vs Dual-channel
• Memory Bandwidth: 51.2 GB/s vs not listed
• ECC Memory: true vs false
• PCIe: Gen 2 vs not listed
• Integrated Graphics: none vs Intel HD 4000
• Market Segment: Server/Workstation vs Mobile
• Release Date: 2011-11-13 vs 2012-04-28
• Launch MSRP: $639 vs not listed
• Part Number: OS6274WKTGGGU vs SR0NC

The Verdict

The benchmark data shows that these two processors are functionally equivalent in Cinebench workloads, with the Opteron 6274 winning all six tests by margins of 0.4% to 1.5%. This is a statistical tie, and the choice between them must be made on platform features rather than performance. The Opteron 6274 is the only one with ECC memory support, quad-channel memory with 51.2 GB/s of bandwidth, and a server/workstation market segment. It also has a launch MSRP of $639. The i7-3615QE offers integrated graphics, a much lower 45-watt TDP, and a smaller 160 mm² die on a 22 nm process, but it lacks ECC and has dual-channel memory.

If the build requires ECC memory, quad-channel bandwidth, or a Socket G34 server board, the Opteron 6274 is the clear choice. If the system needs integrated graphics, low power consumption, or a mobile BGA package, the i7-3615QE is the only option. The data does not support choosing one over the other for raw CPU performance, as the largest delta in any test is 1.5%. The Opteron’s 16 cores and 2,400 million transistors do not deliver a meaningful advantage over the i7’s 4 cores and 1,400 million transistors in these benchmarks. The verdict is simple: pick the platform first, and the processor follows. The Opteron wins the benchmark count, but the i7 wins on efficiency and integration.