AMD Ryzen Embedded R1305G vs Intel Core i7-940 Comparison

Head-to-Head Benchmarks

The recorded data shows a consistent, if narrow, advantage for the AMD Ryzen Embedded R1305G across every measured benchmark. In the Cinebench R15 multicore test, the AMD part scores 269 against the Intel Core i7-940's 264, a lead of 1.9%. The pattern repeats in Cinebench R20 multicore, where the AMD chip posts 1121 points versus 1102 for the Intel processor, a 1.7% difference. Both CPUs show remarkably similar scaling between these two multicore workloads, with the AMD part maintaining its edge throughout.

Single-threaded performance tells the same story. In Cinebench R20 single-core, the Ryzen Embedded R1305G scores 158, while the Core i7-940 trails at 155, again a 1.9% advantage. The Cinebench R23 single-core result is 377 for the AMD chip and 370 for the Intel chip, another 1.9% gap. These margins are small in absolute terms, but they are consistent across all five tests, indicating a genuine, if modest, performance superiority for the AMD processor in this benchmark suite.

The largest delta appears in the single-core tests and the R15 multicore test, all at 1.9%. The two R20 and R23 multicore deltas are slightly smaller at 1.7%. No benchmark in the head-to-head set favors the Intel Core i7-940; the AMD Ryzen Embedded R1305G wins all five recorded comparisons. The average benchmark score for the AMD chip is 919, compared to 903 for the Intel chip, a difference of 16 points that reflects the same overall trend.

Context from the nearest rivals in the database reinforces how close these two processors are in the broader landscape. The AMD Ryzen Embedded R1305G sits at the same average score as the AMD PRO A10-9700E, with a 0% delta, and is 0.2% ahead of the AMD Athlon Silver 3050U. The Intel Core i7-940 matches the Intel Core i5-5350U exactly at 903 points, with the Core i5-4258U 0.1% behind and the AMD A10-7860K 0.1% ahead. Both processors occupy the 24th percentile among all CPUs in the database, meaning they group with a cluster of similarly performing parts rather than standing apart.

Where Each One Wins

The benchmark data points to a straightforward split: the AMD Ryzen Embedded R1305G wins every recorded test, but the margins are so slim that neither processor demonstrates a categorical victory in any workload type. The AMD chip leads in both single-core and multi-core Cinebench variants, which suggests it holds a slight edge in rendering workloads that respond to both single-threaded and multi-threaded execution. The 1.9% single-core advantage and the 1.7% multi-core advantage are nearly identical, indicating that the performance gap does not widen or shrink based on thread count.

For users running Cinebench-style rendering, the AMD Ryzen Embedded R1305G is the better pick by a narrow margin. The data does not show any test where the Intel Core i7-940 pulls ahead, so there is no recorded workload category where the Intel part wins. However, the 1.7% to 1.9% deltas are within the range of run-to-run variation for many workloads, so the practical distinction in everyday use may be minimal.

The Intel Core i7-940 does bring a different set of physical characteristics to the table, including four cores and eight threads against the AMD chip's two cores and four threads. Yet the Intel processor's higher core count does not translate into a multicore win in the recorded benchmarks; the AMD part's higher clock behavior and architectural efficiency appear to compensate. The AMD processor's boost clock of 2.80 GHz approaches the Intel chip's 3.20 GHz boost, and its base clock of 1.50 GHz is far lower, but the final scores still favor AMD.

Architecture Differences

The two processors come from different eras and different design philosophies. The AMD Ryzen Embedded R1305G uses the Zen architecture, built on a 14 nm process at GlobalFoundries, with a die size of 148 mm² and 3,500 million transistors. The Intel Core i7-940 uses the Nehalem architecture, codenamed Bloomfield, fabricated on a 45 nm process at Intel with a die size of 263 mm² and 731 million transistors. The process node gap is substantial: 14 nm versus 45 nm, which explains the dramatic differences in power and physical footprint.

The cache hierarchies differ as well. The AMD chip has 96 KB of L1 cache per core, 512 KB of L2 per core, and 4 MB of shared L3 cache. The Intel chip has 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3 cache. The Intel part offers double the L3 capacity, but the AMD part has larger per-core L1 and L2 allocations. The AMD processor also supports DDR4 memory in dual-channel configuration with a recorded bandwidth of 38.4 GB/s, while the Intel processor supports DDR3 in triple-channel configuration with no bandwidth figure recorded in the database.

Socket and platform expectations differ sharply. The AMD Ryzen Embedded R1305G uses AMD Socket FP5, a mobile-oriented socket, and includes integrated Radeon Vega 3 graphics. The Intel Core i7-940 uses Intel Socket 1366, a desktop platform, and has no integrated graphics listed. The AMD chip uses PCIe Gen 3 with 8 lanes from the CPU, while the Intel chip uses PCIe Gen 2 without a lane count specified. The AMD processor is marked as Active production and was released in 2020, while the Intel processor is End-of-life and was released in 2008. Neither chip has an unlocked multiplier, and neither supports ECC memory.

The transistor count and die size differences are stark: the AMD chip packs 3,500 million transistors into 148 mm², while the Intel chip fits 731 million into 263 mm². This reflects the density advantage of the newer 14 nm process. The thermal design power also reflects this: the AMD chip has a 10 W TDP, while the Intel chip has a 130 W TDP. The Intel part draws over ten times the power envelope, yet delivers slightly lower benchmark scores.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen Embedded R1305G has an average benchmark score of 919, while the Intel Core i7-940 has an average of 903.

Q: Does the Intel Core i7-940 win any of the recorded head-to-head benchmarks?

A: No. The AMD Ryzen Embedded R1305G wins all five recorded Cinebench tests, with deltas ranging from 1.7% to 1.9%.

Q: How do the core and thread counts compare?

A: The Intel Core i7-940 has 4 cores and 8 threads, while the AMD Ryzen Embedded R1305G has 2 cores and 4 threads.

Q: What are the process nodes for each processor?

A: The AMD Ryzen Embedded R1305G is built on a 14 nm process at GlobalFoundries, and the Intel Core i7-940 is built on a 45 nm process at Intel.

Q: Do both processors support ECC memory?

A: No. Neither the AMD Ryzen Embedded R1305G nor the Intel Core i7-940 supports ECC memory.

Q: What is the production status of each chip?

A: The AMD Ryzen Embedded R1305G is listed as Active, while the Intel Core i7-940 is listed as End-of-life.

The Verdict

The data points to the AMD Ryzen Embedded R1305G as the slightly faster processor in every measured benchmark. Users who prioritize raw Cinebench scores, whether single-core or multi-core, should select the AMD chip based on the recorded results. The margins are consistent but small, with the largest advantage being 1.9%, so the decision is not a dramatic one in performance terms.

The Intel Core i7-940 still has a role for those who value its physical configuration. It offers four cores and eight threads, 8 MB of L3 cache, triple-channel DDR3 memory support, and a 3.20 GHz boost clock, all on a desktop-oriented Intel Socket 1366 platform. The AMD chip counters with integrated Radeon Vega 3 graphics, DDR4 support, a 2.80 GHz boost clock, and a 10 W TDP, which makes it far more power-efficient on paper.

The production status difference is notable: the AMD part is Active, while the Intel part is End-of-life. The release dates reinforce this, with the AMD chip arriving in 2020 and the Intel chip in 2008. For new system designs, the AMD Ryzen Embedded R1305G is the more current option. For anyone working with an existing Intel Socket 1366 platform, the Core i7-940 remains a viable, if older, choice. The benchmark data says the AMD part wins; the platform and power data say the AMD part is also the more modern and efficient option. There is no recorded metric where the Intel chip takes the lead.

Specification Differences

| Specification | AMD Ryzen Embedded R1305G | Intel Core i7-940 |

|---|---|---|

| Cores | 2 | 4 |

| Threads | 4 | 8 |

| Base clock | 1500.00 MHz | 2.93 GHz |

| Boost clock | 2.80 GHz | 3.20 GHz |

| TDP | 10 W | 130 W |

| Socket | AMD Socket FP5 | Intel Socket 1366 |

| Architecture | Zen | Nehalem |

| Codename | Zen (Banded Kestrel) | Bloomfield |

| Process node | 14 nm | 45 nm |

| Foundry | GlobalFoundries | Intel |

| Transistors | 3,500 million | 731 million |

| Die size | 148 mm² | 263 mm² |

| L1 cache | 96 KB per core | 64 KB per core |

| L2 cache | 512 KB per core | 256 KB per core |

| L3 cache | 4 MB shared | 8 MB shared |

| Memory support | DDR4 | DDR3 |

| Memory bus | Dual-channel | Triple-channel |

| Memory bandwidth | 38.4 GB/s | Not recorded |

| ECC memory | No | No |

| PCIe | Gen 3, 8 Lanes (CPU only) | Gen 2 |

| Integrated graphics | Radeon Vega 3 | None |

| Market segment | Mobile | Desktop |

| Production status | Active | End-of-life |

| Release date | 2020-02-24 | 2008-11-16 |

| Multiplier unlocked | No | No |

| Part number | YE1305C9T2OFG | SLBCK |