Intel Core i7-2920XM vs Intel Processor N100 Comparison

FAQ

Q: Which processor is faster in single-core workloads?

A: The Intel Processor N100 wins all recorded single-core tests by a wide margin. In Cinebench R15 single-core, it scores 147.9 against 52 for the Core i7-2920XM, a 184.4% lead. In Cinebench R23 single-core, the N100 scores 910.5 versus 494, an 84.3% advantage.

Q: Does the older Core i7-2920XM beat the N100 in any benchmark?

A: Yes, in multi-threaded rendering with modern instruction sets. The Core i7-2920XM wins Cinebench R23 multicore with 3504 points, while the N100 scores 2559.5, a 27% deficit for the N100. However, the N100 wins Cinebench R15 multicore with 401.5 against 353, a 13.7% lead.

Q: How do their overall benchmark averages compare?

A: The N100 has an average benchmark score of 1007, while the Core i7-2920XM averages 995. Both sit at the 27th percentile among all CPUs in the database, meaning they are statistically peers in overall performance despite very different architectures.

Q: What are the closest rivals for each processor?

A: The N100 is within 0.2% of the Intel Core i3-7100H, Intel Core i5-10210Y, Intel Core i7-880, and AMD FX-9830P. The Core i7-2920XM is essentially tied with the Intel Core i7-2635QM, AMD Opteron 4226, Intel Core i3-8130U, and Intel Xeon W3565, all within 0.2%.

Q: Which chip has more threads and what does that mean?

A: The Core i7-2920XM has 8 threads versus 4 threads on the N100. This explains why the older chip wins in Cinebench R23 multicore, where sustained multi-threaded scaling favors the extra threads. The N100 compensates with much higher per-core efficiency.

Q: Are both processors unlocked for overclocking?

A: No. The Core i7-2920XM has an unlocked multiplier, while the N100 does not. This is relevant for enthusiasts, though the N100's low power envelope and BGA socket limit practical overclocking anyway.

The Verdict

The data paints a clear split. Choose the Intel Processor N100 if you prioritize single-thread responsiveness, modern efficiency, and lighter multi-core tasks. It wins 3 of the 4 head-to-head benchmarks, including both single-core tests by massive margins (184.4% and 84.3%) and the Cinebench R15 multicore test by 13.7%. Its 4 cores run at a base clock of 100 MHz with a 3.4 GHz boost, and its 10 nm Gracemont architecture delivers modern IPC that makes older chips feel sluggish in everyday tasks.

Choose the Intel Core i7-2920XM if your workload is heavily multi-threaded and can use 8 threads over a long duration. It wins Cinebench R23 multicore by 27%, scoring 3504 versus 2559.5. This is a genuine advantage for sustained rendering or encoding that scales beyond 4 threads. However, its single-core scores are dramatically lower (494 in R23 single-core versus 910.5), so it will feel slower in general use, browser work, and lightly threaded applications.

The average benchmark scores (1007 vs 995) suggest these are broadly equivalent chips in the database, but the character of their performance is opposite. The N100 is a modern low-power part that punches above its weight; the 2920XM is a legacy extreme edition that relies on raw thread count and an unlocked multiplier. For most users today, the N100 is the more practical choice. For specific heavily threaded legacy workloads, the 2920XM retains a niche.

Head-to-Head Benchmarks

The record shows four direct comparisons. The N100 dominates three of them. In Cinebench R15 single-core, the N100 scores 147.9 versus 52 for the 2920XM, a 184.4% win. That is not a small gap; it is nearly triple the performance. In Cinebench R23 single-core, the N100 scores 910.5 against 494, an 84.3% win. These results reflect the generational leap in per-core efficiency from Sandy Bridge to Gracemont.

In Cinebench R15 multicore, the N100 wins again with 401.5 versus 353, a 13.7% margin. This is notable because the 2920XM has 8 threads to the N100's 4. The N100's higher IPC and efficiency overcome the thread deficit in this older benchmark.

The lone win for the 2920XM comes in Cinebench R23 multicore, where it scores 3504 versus 2559.5, a 27% lead. Cinebench R23 scales aggressively with thread count and uses newer instruction sets, which favors the 8-thread part. This is a real and repeatable advantage, but it is the only test where the older chip comes out ahead.

The win count is 3 to 1 in favor of the N100. The magnitude of the N100's single-core wins (184.4% and 84.3%) far exceeds the 2920XM's multicore win (27%). If you average the deltas, the N100 is ahead on balance, and its overall average benchmark score (1007 vs 995) confirms that.

Specification Differences

The two processors differ in nearly every measurable specification. The N100 has 4 cores and 4 threads, while the 2920XM has 4 cores and 8 threads. The N100's base clock is 100 MHz with a boost of 3.4 GHz; the 2920XM runs at 2.5 GHz base and 3.5 GHz boost. The N100 has a 6 W TDP, the 2920XM a 55 W TDP. That is a 49 W difference, meaning the N100 is far more power-efficient and easier to cool.

The sockets are incompatible: the N100 uses Intel BGA 1264, the 2920XM uses Intel Socket G2 (988B). The N100 supports DDR4 and DDR5 memory in a single-channel configuration with 38.4 GB/s bandwidth. The 2920XM supports DDR3 in dual-channel with 25.6 GB/s bandwidth. The N100 has PCIe Gen 3 with 9 lanes; the 2920XM has PCIe Gen 2 with 16 lanes.

The N100's integrated graphics are UHD Graphics 730, while the 2920XM has Intel HD 3000. The N100's cache is 96 KB L1 per core, 2 MB shared L2, and 6 MB shared L3. The 2920XM has 64 KB L1 per core, 256 KB L2 per core, and 8 MB shared L3. The 2920XM has an unlocked multiplier; the N100 does not.

The 2920XM is end-of-life and was released in January 2011. The N100 is active and was released in January 2023. The launch MSRP for the N100 is $128, and for the 2920XM it is $1096. The 2920XM has 1,160 million transistors on a 216 mm² die, while the N100 does not list transistor or die size data.

Architecture Differences

The N100 uses the Gracemont architecture on Intel's 10 nm process, built for the Alder Lake-N generation. The 2920XM uses the Sandy Bridge architecture on Intel's 32 nm process, part of the Core i7 Extreme lineup. This is a two-generation process shrink (32 nm to 10 nm) and a decade of microarchitectural improvements.

The cache hierarchy differs significantly. The N100 has 96 KB L1 per core, 2 MB shared L2, and 6 MB shared L3. The 2920XM has 64 KB L1 per core, 256 KB L2 per core, and 8 MB shared L3. The N100's L3 is smaller, but its L1 is larger per core, and its L2 is shared, which suits its efficiency-oriented design. The 2920XM's per-core L2 allows better thread isolation, but its older design is less efficient per clock.

The N100 supports newer memory types (DDR4, DDR5) in single-channel, while the 2920XM is limited to dual-channel DDR3. The N100's memory bandwidth is 38.4 GB/s, which is 50% higher than the 2920XM's 25.6 GB/s despite the single-channel limitation. The N100 also supports PCIe Gen 3, while the 2920XM is limited to Gen 2.

The 2920XM has an unlocked multiplier, a hallmark of the Extreme edition lineup. This allows overclocking, which could narrow the single-core gap in theory, but the recorded benchmark scores are stock results. The N100 is not unlocked and is soldered (BGA), so overclocking is not a practical option.

The integrated graphics differ: UHD Graphics 730 on the N100 is a modern iGPU, while Intel HD 3000 on the 2920XM is from the Sandy Bridge era. Neither is a gaming GPU, but the N100's is substantially newer and more capable for video decode and light graphics tasks.

Where Each One Wins

The Intel Processor N100 wins in single-threaded and lightly threaded scenarios. Its Cinebench R23 single-core score of 910.5 is 84.3% higher than the 2920XM's 494. This translates to snappier web browsing, faster office applications, quicker compilation of small projects, and better responsiveness in daily use. It also wins Cinebench R15 multicore (401.5 vs 353), meaning it handles older multi-threaded workloads capably despite having half the threads. Its 6 W TDP makes it suitable for fanless or ultra-portable designs, and its support for DDR4/DDR5 memory with 38.4 GB/s bandwidth gives it a modern memory subsystem. The N100 is also production-active, so it is available for new designs.

The Intel Core i7-2920XM wins in sustained, heavily multi-threaded workloads that can use 8 threads. Its Cinebench R23 multicore score of 3504 is 27% higher than the N100's 2559.5. This matters for long video renders, 3D scene builds, or batch processing that scales across threads. The 2920XM also has an unlocked multiplier, which historically allowed enthusiasts to push it further, though the recorded scores are stock. Its 8 MB of L3 cache and per-core L2 design help in cache-sensitive threaded workloads. The 2920XM also has dual-channel memory, which reduces latency in memory-bound multi-threaded tasks, even though its raw bandwidth is lower at 25.6 GB/s.

For a practical recommendation: if you are building a low-power, modern, everyday system, the N100 is the clear winner. If you are maintaining or resuscitating an older laptop and need maximum multi-threaded rendering performance from a Sandy Bridge era chip, the 2920XM still has a purpose. The benchmark data supports both choices, but the N100's 3-to-1 win count and massive single-core advantages make it the better all-rounder in most scenarios.