AMD Opteron 6272 vs Intel Core i7-3770T Comparison

FAQ

Q: Which processor has more cores and threads?

A: The AMD Opteron 6272 has 16 cores and 16 threads, while the Intel Core i7-3770T has 4 cores and 8 threads. The Opteron offers four times the core count, but the Intel part uses Hyper-Threading to double its thread count from 4 to 8.

Q: How do the clock speeds compare?

A: The Intel Core i7-3770T has a base clock of 2.50 GHz and a boost clock of 3.70 GHz. The AMD Opteron 6272 runs at a base clock of 2.10 GHz and boosts to 3.00 GHz. Intel holds the advantage in both base and boost frequencies.

Q: What memory configurations do these CPUs support?

A: The Intel Core i7-3770T uses dual-channel DDR3 memory and does not support ECC. The AMD Opteron 6272 uses quad-channel DDR3 memory with a bandwidth of 51.2 GB/s and supports ECC memory. The Opteron is built for server memory workloads.

Q: Which processor has integrated graphics?

A: The Intel Core i7-3770T includes Intel HD 4000 integrated graphics. The AMD Opteron 6272 has no integrated graphics, which is typical for a server/ workstation part.

Q: What are the power consumption figures?

A: The Intel Core i7-3770T has a TDP of 45 W. The AMD Opteron 6272 has a TDP of 115 W. Intel's part uses substantially less power, reflecting its smaller process node and lower core count.

Q: What process nodes are used?

A: The Intel Core i7-3770T is built on Intel's 22 nm process with 1,400 million transistors on a 160 mm² die. The AMD Opteron 6272 uses GlobalFoundries' 32 nm process with 2,400 million transistors spread across two 315 mm² dies.

Where Each One Wins

The Intel Core i7-3770T wins every recorded benchmark in the head-to-head comparison. Across all six tests, the Intel part takes the lead, with wins in both multicore and single-core workloads. The largest margin comes in Cinebench R20 single-core, where Intel leads by 3.8%. The smallest margin is in Cinebench R15 single-core, at 3.2%.

The AMD Opteron 6272 does not win any of the six head-to-head tests. However, its strength lies in raw core count and server-oriented features. With 16 cores versus 4 cores, the Opteron is designed for heavily threaded server workloads that can scale across many physical cores. The Intel part counters with higher clocks, a smaller process node, and a lower TDP.

For single-threaded applications, the Intel Core i7-3770T is clearly superior. Its boost clock of 3.70 GHz and Ivy Bridge architecture deliver higher per-core performance. For memory-intensive server tasks, the Opteron's quad-channel memory bus, ECC support, and 51.2 GB/s bandwidth make it the appropriate choice, despite losing in the Cinebench tests.

The data indicates that the Intel part is better for general desktop use, light threaded workloads, and scenarios where power efficiency matters. The AMD part suits multi-socket server environments where core count, ECC memory, and memory bandwidth are priorities, even if its per-core performance lags.

Architecture Differences

The Intel Core i7-3770T uses the Ivy Bridge architecture, built on a 22 nm process at Intel's foundry. It packs 1,400 million transistors into a 160 mm² die. The cache layout is per-core: 64 KB L1 and 256 KB L2 per core, with 8 MB of shared L3 cache. The memory controller is dual-channel DDR3, and PCIe support is Gen 3 with 16 lanes from the CPU.

The AMD Opteron 6272 uses the Bulldozer architecture, codenamed Interlagos, built on GlobalFoundries' 32 nm process. It contains 2,400 million transistors across two 315 mm² dies. The cache structure is different: 768 KB L1 total, 2 MB L2 per module, and 8 MB L3 per die. The memory controller is quad-channel DDR3 with a rated bandwidth of 51.2 GB/s, and PCIe support is Gen 2.

The Bulldozer design uses modules with shared floating-point units, which explains why 16 cores only yield 16 threads, whereas Ivy Bridge uses traditional cores with Hyper-Threading. The Intel part's L3 cache is shared across 4 cores, while the Opteron's L3 is distributed per die. The Opteron supports ECC memory, while the Intel part does not. Integrated graphics exist only on the Intel chip (Intel HD 4000), and the Opteron has none.

The process node difference matters: 22 nm versus 32 nm gives Intel a significant density and efficiency advantage. The transistor count is higher on the Opteron, but it is spread across two dies, reflecting a server-oriented multi-chip design.

Specification Differences

The Intel Core i7-3770T has 4 cores and 8 threads, with base and boost clocks of 2.50 GHz and 3.70 GHz. The AMD Opteron 6272 has 16 cores and 16 threads, with base and boost clocks of 2.10 GHz and 3.00 GHz.

TDP differs sharply: 45 W for Intel versus 115 W for AMD. The Intel part uses the Intel Socket 1155, while the Opteron uses AMD Socket G34. The Intel chip is a desktop part; the Opteron is a server/ workstation part. The Opteron is end-of-life, while the Intel part's production status is not listed.

Memory support: Intel uses dual-channel DDR3, no ECC. AMD uses quad-channel DDR3, with ECC support and a bandwidth of 51.2 GB/s. PCIe generation differs: Gen 3 for Intel, Gen 2 for AMD. Integrated graphics: Intel HD 4000 on the Intel part, none on the Opteron.

The Opteron has a launch MSRP of $523. The Intel part has no launch MSRP listed. The process nodes differ (22 nm versus 32 nm), as do the die sizes (160 mm² versus 2x 315 mm²). The Opteron's cache is structured per module and per die, while Intel's is per core and shared.

Head-to-Head Benchmarks

The Intel Core i7-3770T wins all six head-to-head benchmark comparisons. In Cinebench R15 multicore, Intel scores 464 against AMD's 448, a 3.6% advantage. In Cinebench R15 single-core, Intel scores 65 versus 63, a 3.2% lead.

Moving to Cinebench R20, the Intel part scores 1936 in multicore versus 1870 for AMD, a 3.5% delta. In R20 single-core, Intel scores 273 against 263, a 3.8% margin. This is the largest single-test win for Intel.

Cinebench R23 shows the same pattern. Intel scores 4611 in multicore versus 4454 for AMD, a 3.5% difference. In R23 single-core, Intel scores 651 versus 628, a 3.7% lead.

The consistency is notable: Intel wins every test by a margin between 3.2% and 3.8%. There is no test where the Opteron's 16 cores overcome Intel's architecture and clock advantage. Even in multicore workloads, the Opteron's core count does not translate into a win, because the Cinebench tests scale with per-core efficiency as well as core count.

The average benchmark scores reflect this: the Intel part averages 1314 across all recorded benchmarks, while the Opteron averages 1288. Both CPUs sit at the 35th percentile among all CPUs in the database. The Intel part's nearest rival is the AMD Athlon Gold 7220U with an average score of 1311, a 0.2% delta. The Opteron's nearest rival is the Intel Core i7-3630QM with a score of 1289, a 0.1% delta. These rival comparisons show both parts sit in a similar performance tier, despite the massive core count difference.

The Verdict

The benchmark data is unambiguous: the Intel Core i7-3770T outperforms the AMD Opteron 6272 in every recorded test. The margins are narrow but consistent, ranging from 3.2% to 3.8%. For single-threaded workloads, the Intel part's higher clocks (3.70 GHz boost) and Ivy Bridge architecture deliver a clear win. For multicore workloads, the Opteron's 16 cores do not overcome Intel's per-core efficiency, as the Cinebench multicore scores still favor Intel by 3.5% to 3.6%.

Choose the Intel Core i7-3770T for desktop builds, low-power systems, or any workload where single-thread performance, integrated graphics, or power efficiency (45 W TDP) matter. The data shows it wins all benchmark comparisons, and its 22 nm process gives it a modern efficiency edge.

Choose the AMD Opteron 6272 for server or workstation environments where ECC memory, quad-channel bandwidth (51.2 GB/s), and raw core count (16 cores) are essential. The Opteron does not win any benchmark here, but its feature set targets a different use case: memory reliability, high memory throughput, and multi-threaded server tasks that do not appear in these Cinebench tests. Its 115 W TDP and end-of-life status are drawbacks, but the platform supports capabilities the Intel part lacks.

The percentile ranking for both is identical at 35%, and their average benchmark scores are close (1314 versus 1288). This indicates that for general computing, the two parts land in a similar performance class. The Intel part is the better choice for most users, while the Opteron serves a specialized server niche. The launch MSRP of $523 for the Opteron reflects its server positioning, though no comparable price is listed for the Intel part.