Intel Core i5-2400 vs Intel Core i7-2960XM Comparison

Head-to-Head Benchmarks

The benchmark results reveal a surprisingly split picture between these two Sandy Bridge parts. The Intel Core i7-2960XM dominates the Cinebench suite, while the Intel Core i5-2400 claims both Geekbench victories.

In Cinebench R15 multi-core, the i7-2960XM scores 401 against the i5-2400's 329, a margin of 18%. That pattern holds almost perfectly across the Cinebench family: R20 multi-core shows 1674 versus 1374 (17.9% advantage), and R23 multi-core delivers 3988 versus 3272 (18% ahead). The consistency of that delta across three different Cinebench generations suggests a structural advantage, not a workload quirk. Single-core Cinebench tests tell the same story: R20 single-core favors the i7-2960XM at 236 versus 194 (17.8%), and R23 single-core shows 563 versus 462 (17.9%).

The Geekbench results flip the narrative entirely. The i5-2400 wins Geekbench multi-core with 2011 versus 1851, an 8.6% lead. In Geekbench single-core, the i5-2400 extends that advantage to 14.6%, scoring 666 against the i7-2960XM's 581. That is a substantial reversal, and it raises a question: why would the same CPU architecture, same process node, and same core count produce such divergent outcomes depending on the benchmark suite?

The answer likely lies in how each benchmark weights different microarchitectural behaviors. Cinebench clearly rewards the i7-2960XM's higher boost clock and larger shared cache, while Geekbench appears to favor the i5-2400's higher base clock and desktop-oriented memory configuration. The i7-2960XM boosts to 3.70 GHz but idles at 2.70 GHz, whereas the i5-2400 runs at 3.10 GHz base and boosts to 3.40 GHz. In short, sustained workloads that trigger boost behavior benefit the i7, while workloads that stay closer to base clocks favor the i5.

The aggregate average benchmark score tells a nuanced story: the i5-2400 averages 1187 points, while the i7-2960XM averages 1169. The i5-2400's two decisive wins in Geekbench pull its average slightly higher, even though the i7-2960XM wins five of the seven recorded tests. The i5-2400 sits at the 33rd percentile among all CPUs, and the i7-2960XM also sits at the 33rd percentile, so their overall standing in the database is effectively identical despite the divergent workload profiles.

Where Each One Wins

The i7-2960XM is the clear choice for rendering and content creation workloads. Its Cinebench results across R15, R20, and R23, both single-core and multi-core, all land roughly 18% ahead of the i5-2400. That consistency across multiple generations of the same benchmark suite indicates that the i7-2960XM sustains its performance advantage regardless of how the test evolves. The 8 MB shared L3 cache versus the i5-2400's 6 MB likely contributes to this edge, as does Hyper-Threading, which doubles the thread count from 4 to 8.

The i5-2400, by contrast, dominates in Geekbench, which tends to exercise a wider variety of instructions and memory patterns. Its multi-core score of 2011 beats the i7-2960XM's 1851 by 8.6%, and its single-core score of 666 beats 581 by 14.6%. The i5-2400's higher base clock of 3.10 GHz versus 2.70 GHz gives it an advantage in workloads that do not consistently trigger boost states. Desktop power delivery and cooling headroom may also play a role, as the i5-2400 carries a 95 W TDP compared to the i7-2960XM's 55 W, allowing the desktop part to sustain higher clocks more freely.

For users running mixed workloads, the data suggests a trade-off: choose the i7-2960XM for sustained multi-threaded rendering, choose the i5-2400 for general productivity and single-threaded responsiveness. The nearly identical average benchmark scores (1187 versus 1169) mean neither part offers a blanket performance advantage.

Architecture Differences

Both CPUs share the Sandy Bridge architecture, manufactured on Intel's 32 nm process with 1,160 million transistors and a 216 mm² die size. The L1 cache is identical at 64 KB per core, as is the L2 cache at 256 KB per core. The L3 cache differs: the i5-2400 has 6 MB shared, while the i7-2960XM has 8 MB shared, a 33% increase that helps explain the Cinebench dominance.

The core counts match at four physical cores, but threading diverges: the i5-2400 has 4 threads with Hyper-Threading disabled, while the i7-2960XM has 8 threads enabled via Hyper-Threading. That doubles the available thread count and gives the i7-2960XM a structural advantage in heavily parallel workloads.

The integrated graphics also differ. The i5-2400 ships with Intel HD 2000, while the i7-2960XM includes Intel HD 3000, a newer and more capable GPU block. Neither supports ECC memory, and both run dual-channel DDR3. The memory bandwidth is listed as 25.6 GB/s for the i7-2960XM but is not recorded for the i5-2400 in the database.

PCIe support shows a notable gap: the i5-2400 offers Gen 3 with 16 lanes (CPU only), while the i7-2960XM offers Gen 2 with 16 lanes (CPU only). That means the desktop part has twice the PCIe bandwidth of the mobile part, which could impact discrete GPU performance and NVMe storage throughput. The i7-2960XM compensates with an unlocked multiplier, allowing overclocking, whereas the i5-2400's multiplier is locked.

The production status for both is end-of-life, and both use DDR3 memory. The i5-2400 targets the desktop segment on Intel Socket 1155, while the i7-2960XM targets mobile on Intel Socket G2 (988B). The mobile part's 55 W TDP is notably lower than the desktop part's 95 W, despite the i7-2960XM having more threads and more L3 cache, a signal of Intel's mobile binning of the same architecture.

Specification Differences

The two processors differ across several key specifications. The i5-2400 runs a base clock of 3.10 GHz and boosts to 3.40 GHz, while the i7-2960XM runs a lower base clock of 2.70 GHz but boosts higher to 3.70 GHz. The i7-2960XM's higher boost clock aligns with its Cinebench wins, while the i5-2400's higher base clock aligns with its Geekbench wins.

Thread counts differ: the i5-2400 supports 4 threads, the i7-2960XM supports 8. L3 cache differs: 6 MB shared versus 8 MB shared. TDP differs substantially: 95 W for the i5-2400, 55 W for the i7-2960XM. The socket differs: Intel Socket 1155 for the i5-2400, Intel Socket G2 (988B) for the i7-2960XM.

Market segments differ: the i5-2400 is a desktop part, the i7-2960XM is mobile. The i7-2960XM has an unlocked multiplier; the i5-2400 does not. Integrated graphics differ: Intel HD 2000 versus Intel HD 3000. PCIe generation differs: Gen 3 on the i5-2400, Gen 2 on the i7-2960XM. The i7-2960XM lists a memory bandwidth of 25.6 GB/s, a figure not recorded for the i5-2400.

Release dates differ: the i5-2400 launched on 2011-01-08, the i7-2960XM on 2011-09-03. The i7-2960XM carries a launch MSRP of $1096. The part numbers also differ: SR00Q for the i5-2400, SR02FQ1NA for the i7-2960XM.

FAQ

Q: Which CPU has the higher average benchmark score?

A: The i5-2400 averages 1187 points, while the i7-2960XM averages 1169 points, a difference of 18 points in favor of the desktop part.

Q: How much faster is the i7-2960XM in Cinebench R23 multi-core?

A: The i7-2960XM scores 3988 versus the i5-2400's 3272, an 18% advantage.

Q: Does the i5-2400 win any benchmarks?

A: Yes, the i5-2400 wins Geekbench multi-core with 2011 versus 1851 (8.6% ahead) and Geekbench single-core with 666 versus 581 (14.6% ahead).

Q: What is the thread count difference?

A: The i5-2400 has 4 threads, while the i7-2960XM has 8 threads due to Hyper-Threading.

Q: Which CPU has the larger L3 cache?

A: The i7-2960XM has 8 MB shared L3 cache, compared to the i5-2400's 6 MB shared.

Q: Are both CPUs on the same architecture?

A: Yes, both use Sandy Bridge on Intel's 32 nm process, with the same 1,160 million transistors and 216 mm² die size.

The Verdict

The data does not crown a single winner, it splits the crown by workload. The i7-2960XM is the stronger processor for Cinebench-style rendering workloads, with a consistent 18% lead across R15, R20, and R23, both single-core and multi-core. Its 8 MB L3 cache, 8 threads, and higher 3.70 GHz boost clock make it the better choice for content creation and heavily threaded tasks.

The i5-2400 is the stronger processor for Geekbench-style workloads, with an 8.6% lead in multi-core and a 14.6% lead in single-core. Its higher 3.10 GHz base clock and desktop-class 95 W TDP allow it to outpace the mobile part in general productivity and responsiveness.

The average benchmark scores nearly cancel out: 1187 for the i5-2400, 1169 for the i7-2960XM. Both sit at the 33rd percentile among all CPUs. The i5-2400 wins 2 of 7 head-to-head tests, the i7-2960XM wins 5 of 7.

Given these results, the i7-2960XM suits users who prioritize sustained multi-threaded rendering and are willing to work within a mobile platform's constraints. The unlocked multiplier adds overclocking flexibility. The i5-2400 suits users who prioritize single-threaded responsiveness and desktop platform features like PCIe Gen 3, and who prefer a simpler locked-multiplier setup. The launch MSRP of $1096 for the i7-2960XM reflects its Extreme Edition positioning, while the i5-2400's pricing is not recorded in the database.