Intel Core i5-1340P vs Intel Core i9-10900 Comparison

The Intel Core i9-10900 and Intel Core i5-1340P represent two very different approaches to CPU design: a high-core-count desktop processor from the Comet Lake era versus a hybrid-architecture mobile chip from Raptor Lake. Despite the i5-1340P being three generations newer, the benchmark data tells a story of narrow margins, with the desktop part winning every single head-to-head test. The i9-10900 holds a consistent 3.2% lead across all multi-core and single-core Cinebench tests, while the i5-1340P counters with a newer process node, a higher core count, and a dramatically lower 28W TDP. This is a contest between raw sustained performance and efficiency-first design.

Where Each One Wins

The Intel Core i9-10900 wins every benchmark where both processors have comparable data. Across all six head-to-head Cinebench tests, the i9-10900 posts higher scores, with deltas consistently at 3.1% to 3.2%. In multi-core workloads, the i9-10900 scores 1,634 in Cinebench R15, 6,811 in R20, and 16,219 in R23, versus 1,584, 6,600, and 15,716 for the i5-1340P respectively. The single-core story is similar: the i9-10900 leads with 230 in R15, 961 in R20, and 2,289 in R23, while the i5-1340P trails at 223, 931, and 2,218.

The i5-1340P does not win any of the six head-to-head comparisons, but its strengths lie outside the Cinebench suite. It carries 12 cores and 16 threads versus the i9-10900's 10 cores and 20 threads, meaning the mobile chip has more physical cores but fewer threads. The 1340P is built on a 10 nm process versus 14 nm for the 10900, and it uses Raptor Lake architecture with a hybrid design, whereas the 10900 is a monolithic Comet Lake part. The i5-1340P also supports DDR5 memory in addition to DDR4, while the i9-10900 is limited to DDR4.

In terms of integrated graphics, the i5-1340P features Iris Xe Graphics 80EU, which is a newer and more capable GPU than the UHD Graphics 630 in the i9-10900. The 1340P also has PCIe Gen 4 with 20 lanes, compared to PCIe Gen 3 with 16 lanes on the 10900. These differences favor the mobile chip for tasks that depend on memory bandwidth, GPU acceleration, or newer I/O standards.

The Verdict

The data clearly favors the Intel Core i9-10900 for raw compute performance. It wins all six head-to-head Cinebench tests, with a 3.2% advantage in R15, R20, and R23 multi-core, and a 3.1% to 3.2% edge in single-core. The 10900 also boasts a higher boost clock of 5.20 GHz versus 4.60 GHz for the 1340P, and a larger 20 MB shared L3 cache versus 12 MB. Its average benchmark score of 4,614 puts it in the 58th percentile of all CPUs, matching the i5-1340P's 58th percentile but with a slightly higher absolute average.

However, the i5-1340P is not without its merits. It has a 28W TDP, less than half of the 10900's 65W TDP, making it far more suitable for thin-and-light laptops. It supports newer memory standards (DDR4 and DDR5), a newer PCIe generation (Gen 4), and features a more advanced integrated GPU. For users who need sustained multi-threaded performance in a desktop context, the i9-10900 is the clear choice based on the benchmark results. For those prioritizing portability, efficiency, and modern platform features, the i5-1340P offers a compelling package despite losing every compute benchmark.

The i9-10900 also holds a slight edge in its nearest rival comparisons. Its closest rival, the Intel Core i9-10900F, scores 4,664 with a -1.1% delta, while the i9-10900 scores 4,614. The i5-1340P's nearest rival is the Intel Core i7-10700KF at 4,547 with a 0% delta, and the i5-1340P scores 4,545. Both processors are tightly clustered with their peers, but the i9-10900 sits slightly higher in absolute terms.

Head-to-Head Benchmarks

The most decisive wins for the Intel Core i9-10900 come in the Cinebench suite, where it outperforms the i5-1340P by a consistent margin. In Cinebench R15 multi-core, the i9-10900 scores 1,634 against 1,584 for the i5-1340P, a 3.2% lead. The R15 single-core test shows a similar pattern: 230 versus 223, a 3.1% advantage. This consistency continues in R20, where the i9-10900 posts 6,811 multi-core and 961 single-core, versus 6,600 and 931 for the i5-1340P, both at 3.2% deltas.

The largest absolute gap appears in Cinebench R23 multi-core, where the i9-10900 scores 16,219 against the i5-1340P's 15,716, a difference of 503 points. The R23 single-core test shows a 71-point gap (2,289 versus 2,218). Across all six tests, the i9-10900 wins 6, and the i5-1340P wins 0. The smallest margin is in R15 single-core at 3.1%, while the largest is 3.2% in all multi-core tests and R20 single-core.

These margins are notable because they are remarkably uniform. The i9-10900 does not just edge ahead in one test; it maintains a nearly identical 3.2% advantage across different workloads and Cinebench versions. This suggests the performance gap is structural, likely tied to the higher boost clock (5.20 GHz versus 4.60 GHz) and larger L3 cache (20 MB versus 12 MB), rather than workload-specific scaling.

FAQ

Q: Which processor has a higher multi-core score in Cinebench R23?

A: The Intel Core i9-10900 scores 16,219, which is 3.2% higher than the i5-1340P's 15,716.

Q: Does the i5-1340P win any head-to-head benchmark?

A: No. In the six head-to-head Cinebench tests, the i9-10900 wins all of them, with the i5-1340P taking zero wins.

Q: What is the TDP difference between the two processors?

A: The i9-10900 has a 65W TDP, while the i5-1340P has a 28W TDP, making the mobile chip significantly more power-efficient.

Q: Which processor supports DDR5 memory?

A: The i5-1340P supports both DDR4 and DDR5, while the i9-10900 only supports DDR4.

Q: How do their average benchmark scores compare?

A: The i9-10900 has an average benchmark score of 4,614, and the i5-1340P has an average of 4,545, with both sitting in the 58th percentile of all CPUs.

Q: What is the core and thread count difference?

A: The i9-10900 has 10 cores and 20 threads, while the i5-1340P has 12 cores and 16 threads.

Architecture Differences

The two processors come from different architectural eras. The Intel Core i9-10900 is based on Comet Lake, a 14 nm desktop design from the 10th generation, released on 2020-04-29. It uses a monolithic die with 10 cores and 20 threads, and its cache hierarchy includes 64 KB of L1 per core, 256 KB of L2 per core, and a 20 MB shared L3 cache. The i9-10900 supports DDR4 memory over a dual-channel bus with a bandwidth of 46.9 GB/s, and it operates on the Intel Socket 1200 platform.

The Intel Core i5-1340P, by contrast, is a Raptor Lake-P mobile design on a 10 nm process, released on 2023-01-03. It has 12 cores and 16 threads, which implies a hybrid architecture combining performance and efficiency cores, though the FACT PACK does not specify the core arrangement. Its cache is structured differently: 80 KB of L1 per core, 2 MB of L2 per core, and 12 MB of shared L3. This larger L2 per core suggests a design optimized for faster access to frequently used data.

Memory support is a key differentiator. The i5-1340P supports both DDR4 and DDR5, while the i9-10900 is limited to DDR4. The i5-1340P also has PCIe Gen 4 with 20 lanes, versus PCIe Gen 3 with 16 lanes on the i9-10900, offering double the bandwidth for modern GPUs and NVMe drives. The integrated graphics differ as well: the i5-1340P features Iris Xe Graphics 80EU, whereas the i9-10900 has UHD Graphics 630. The i5-1340P is built on a newer 10 nm node, which contributes to its lower 28W TDP despite having more cores.

Specification Differences

The two processors differ in every major specification category except for manufacturer, memory bus type, ECC support, and unlocked multiplier status (both are locked). The i9-10900 has 10 cores and 20 threads, while the i5-1340P has 12 cores and 16 threads. The base clock for the i9-10900 is 2.80 GHz, while the i5-1340P has a base clock of 1900.00 MHz; boost clocks are 5.20 GHz and 4.60 GHz respectively.

The TDP is a significant divergence: 65W for the desktop part versus 28W for the mobile part. The socket types are incompatible: Intel Socket 1200 for the i9-10900, and Intel BGA 1744 for the i5-1340P, reflecting their desktop versus mobile positioning. The process node is 14 nm for Comet Lake and 10 nm for Raptor Lake. Cache sizes differ across all levels: L1 is 64 KB per core versus 80 KB per core, L2 is 256 KB per core versus 2 MB per core, and L3 is 20 MB shared versus 12 MB shared.

Memory support is broader on the i5-1340P (DDR4, DDR5) versus DDR4-only on the i9-10900. The memory bandwidth figure of 46.9 GB/s is only listed for the i9-10900. PCIe capabilities are Gen 3 with 16 lanes for the i9-10900, and Gen 4 with 20 lanes for the i5-1340P. The integrated graphics are UHD Graphics 630 versus Iris Xe Graphics 80EU. The i9-10900 is end-of-life with a launch MSRP of $483, while the i5-1340P is active with a launch MSRP of $353. Release dates are 2020-04-29 and 2023-01-03, respectively, and the part numbers are SRH8Z and SRMJ7.