Intel Core i5-2300 vs Intel Core i7-2630QM Comparison

The Intel Core i5-2300 and Intel Core i7-2630QM are both Sandy Bridge parts from the same generation, but they target different market segments: the former is a desktop processor, the latter a mobile one. Benchmark data shows a consistent, though modest, advantage for the mobile i7 across all tested Cinebench workloads, despite the desktop chip's higher clock speeds. The average benchmark scores are nearly identical, with the i5-2300 at 1014 and the i7-2630QM at 1005, placing them in the 28th and 27th percentiles of all CPUs respectively.

Head-to-Head Benchmarks

The benchmark results are remarkably consistent, with the Intel Core i7-2630QM winning all five direct comparisons. The margins are narrow, however, never exceeding 2.6%. In Cinebench R15 multicore, the i7-2630QM scores 304 against the i5-2300's 296, a 2.6% difference. This pattern holds in Cinebench R20 multicore, where the i7-2630QM's 1268 edges out the i5-2300's 1237 by 2.4%. The single-core tests tell the same story. The i7-2630QM leads in Cinebench R20 single-core with 178 versus 174, a 2.2% gap, and in Cinebench R23 single-core with 426 versus 416, a 2.3% margin.

The most substantial absolute difference appears in Cinebench R23 multicore, where the i7-2630QM scores 3020 compared to the i5-2300's 2947. This 73-point gap represents a 2.4% advantage. Interestingly, the i7-2630QM's lead is remarkably uniform across both single-threaded and multi-threaded tests, suggesting the advantage comes from architectural features rather than raw clock speed. The i5-2300's higher base clock of 2.80 GHz and boost clock of 3.10 GHz are not enough to overcome the i7-2630QM's additional threads and newer integrated graphics. The data shows a clean sweep: 0 wins for the i5-2300 and 5 wins for the i7-2630QM in the head-to-head benchmarks.

Architecture Differences

Both processors share the same Sandy Bridge architecture, fabricated on Intel's 32 nm process node. Each uses 1,160 million transistors on a 216 mm² die. The cache hierarchy is identical: 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3 cache. The core counts match at four physical cores, but the key architectural divergence lies in threading. The i5-2300 supports 4 threads, while the i7-2630QM doubles that to 8 threads via Hyper-Threading. This is the primary reason the mobile chip edges ahead in multi-threaded workloads despite lower clock speeds.

Clock speeds differ significantly. The i5-2300 has a base clock of 2.80 GHz and boosts to 3.10 GHz. The i7-2630QM, in contrast, has a base clock of 2000.00 MHz and boosts to 2.90 GHz. The desktop part's higher clocks are offset by the mobile part's superior thread count. The thermal design power (TDP) tells the market story: the i5-2300 consumes 95 watts, while the i7-2630QM draws only 45 watts, reflecting their desktop versus mobile positioning.

The integrated graphics differ as well. The i5-2300 carries Intel HD 2000, while the i7-2630QM features the more capable Intel HD 3000. Memory support is DDR3 for the i5-2300, with no memory support field listed for the i7-2630QM; both use dual-channel memory buses. The i5-2300 supports PCIe Gen 3 with 16 lanes (CPU only), while the i7-2630QM has no PCIe information listed. Neither processor supports ECC memory, and both have locked multipliers. The i5-2300 uses Socket 1155, whereas the i7-2630QM uses Socket G2 (988B). Release dates are nearly simultaneous, with the i7-2630QM arriving on 2011-01-02 and the i5-2300 on 2011-01-08.

Where Each One Wins

The i7-2630QM wins every benchmark in the comparison, making the use-case split straightforward. In multi-threaded workloads like video rendering or 3D modeling, the i7-2630QM's 8 threads provide a measurable advantage. Cinebench R23 multicore shows a 73-point lead for the mobile chip. For users running heavily threaded applications, the i7-2630QM is the stronger choice on paper. The i5-2300, however, is not without its merits. Its higher base and boost clocks (2.80 GHz and 3.10 GHz versus 2000.00 MHz and 2.90 GHz) make it competitive in single-threaded tasks, where the i7-2630QM leads by only 2.2% to 2.3%. The desktop chip also offers PCIe Gen 3 support with 16 lanes, which the mobile part lacks entirely.

The i5-2300's 95-watt TDP, while high, indicates it is designed for sustained desktop operation without the thermal constraints of a laptop. The i7-2630QM's 45-watt TDP makes it suitable for mobile systems where power efficiency is critical. For a desktop user who prioritizes single-thread responsiveness and has access to discrete graphics, the i5-2300's higher clocks and PCIe support may be preferable. For a laptop user or someone who values multi-threaded throughput, the i7-2630QM's thread advantage and superior integrated graphics (HD 3000 versus HD 2000) tip the scales. The data shows a narrow but consistent victory for the mobile part across all tested scenarios.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core i5-2300 has a slightly higher average benchmark score of 1014, compared to the Intel Core i7-2630QM's 1005. The difference is less than 1%.

Q: How does the i7-2630QM achieve better multi-threaded performance despite lower clock speeds?

A: The i7-2630QM supports 8 threads versus the i5-2300's 4 threads. This doubling of thread count allows it to handle more parallel work, which offsets its lower base clock of 2000.00 MHz and boost clock of 2.90 GHz.

Q: What is the biggest performance gap between the two processors?

A: The largest delta is in Cinebench R15 multicore, where the i7-2630QM leads by 2.6% (304 versus 296). The smallest gap is in Cinebench R20 single-core, at 2.2% (178 versus 174).

Q: Do both processors use the same manufacturing process?

A: Yes, both use Intel's 32 nm process node, with 1,160 million transistors on a 216 mm² die. They also share the same Sandy Bridge architecture and 6 MB of shared L3 cache.

Q: Which processor has better integrated graphics?

A: The Intel Core i7-2630QM features Intel HD 3000, while the Intel Core i5-2300 comes with Intel HD 2000. The HD 3000 is the more advanced integrated graphics solution.

Q: What is the TDP difference between the two?

A: The i5-2300 has a TDP of 95 watts, while the i7-2630QM has a TDP of 45 watts. This reflects their desktop versus mobile market segments.

The Verdict

The data points decisively toward the Intel Core i7-2630QM as the better performer across all measured benchmarks. It wins all five head-to-head comparisons, with margins ranging from 2.2% to 2.6%. The i7-2630QM's 8 threads provide a clear advantage in multi-threaded workloads, as evidenced by its lead in Cinebench R15, R20, and R23 multicore tests. Its single-core performance is also superior, albeit by a slim margin, thanks to architectural efficiency rather than clock speed. The i5-2300's higher clocks of 2.80 GHz base and 3.10 GHz boost do not translate into a single benchmark victory.

However, the choice between these two is not purely about raw performance. The i5-2300 is a desktop processor with a 95-watt TDP and PCIe Gen 3 support with 16 lanes, making it suitable for full-size systems. The i7-2630QM is a mobile part with a 45-watt TDP, designed for laptops where power efficiency matters. Users building a desktop with a dedicated GPU may prefer the i5-2300 for its PCIe capabilities. Those needing a mobile solution or maximizing multi-threaded throughput should choose the i7-2630QM. The benchmark data shows the i7-2630QM is the faster chip, but the i5-2300's desktop-oriented features give it a distinct role.

Specification Differences

| Specification | Intel Core i5-2300 | Intel Core i7-2630QM |

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

| Threads | 4 | 8 |

| Base Clock | 2.80 GHz | 2000.00 MHz |

| Boost Clock | 3.10 GHz | 2.90 GHz |

| TDP | 95 W | 45 W |

| Socket | Intel Socket 1155 | Intel Socket G2 (988B) |

| Integrated Graphics | Intel HD 2000 | Intel HD 3000 |

| PCIe | Gen 3, 16 Lanes (CPU only) | Not listed |

| Market Segment | Desktop | Mobile |

| Part Number | SR00D | SR02Y |

| Memory Support | DDR3 | Not listed |

| Release Date | 2011-01-08 | 2011-01-02 |