Intel Core i5-13500E vs Intel Core i9-7940X Comparison

The Verdict

The benchmark data is unambiguous. The Intel Core i5-13500E wins every single head-to-head benchmark against the Intel Core i9-7940X. Across all six Cinebench tests, the i5-13500E holds a consistent edge, with deltas ranging from 5.6% to 5.8% in its favor. The i9-7940X records zero wins in this comparison.

The i5-13500E is the pick for any workload that emphasizes threaded performance, single-thread speed, or power efficiency. It achieves higher Cinebench scores across R15, R20, and R23, both in multicore and singlecore runs. Its 65 W TDP, compared to the i9-7940X's 165 W TDP, makes it dramatically easier to cool and integrate into a system. The i9-7940X, while an older high-end part, cannot match the newer chip's performance in any recorded metric. For a user selecting between these two today, the data points squarely at the i5-13500E. The i9-7940X remains a functional processor, but it is an end-of-life product with a higher power draw and lower scores across the board.

Architecture Differences

The two processors come from different architectural eras and serve different platform strategies. The Intel Core i9-7940X is built on the Skylake-X architecture, using a 14 nm process node, and belongs to the Core i9 X-Series 7th Gen family. It has 14 cores and 28 threads, with a base clock of 3.10 GHz and a boost clock of 4.40 GHz. The i5-13500E is a Raptor Lake-S part, built on a 10 nm process, and belongs to the Core 13th Gen series. It also has 14 cores but only 20 threads, with a lower base clock of 2.40 GHz but a higher boost clock of 4.60 GHz.

Cache configurations differ notably. The i9-7940X provides 64 KB of L1 per core, 1 MB of L2 per core, and 19.25 MB of shared L3 cache. The i5-13500E offers larger per-core caches: 80 KB of L1 per core, 1.25 MB of L2 per core, and 24 MB of shared L3. This larger cache hierarchy likely contributes to the i5's consistent single-thread advantage.

Memory architecture also separates the two. The i9-7940X supports DDR4 memory with a quad-channel bus and a recorded memory bandwidth of 85.3 GB/s. The i5-13500E supports both DDR4 and DDR5, but uses a dual-channel bus; no bandwidth figure is recorded for it. The i9-7940X does not support ECC memory, while the i5-13500E does. PCIe capabilities differ as well: the i9-7940X offers Gen 3 with 44 lanes (CPU only), while the i5-13500E offers Gen 5 with 16 lanes (CPU only). The i5-13500E also includes integrated graphics, the UHD Graphics 770, whereas the i9-7940X has no integrated graphics listed. The i9-7940X has an unlocked multiplier, while the i5-13500E is locked. Sockets are incompatible: Socket 2066 for the i9-7940X versus Socket 1700 for the i5-13500E.

Head-to-Head Benchmarks

The head-to-head results form a clean sweep. In Cinebench R15 multicore, the i5-13500E scores 2295 against the i9-7940X's 2161, a 5.8% advantage. In R15 singlecore, the i5 scores 323 versus 305, a 5.6% edge.

Moving to Cinebench R20, the pattern holds. The i5-13500E posts 9564 in multicore versus 9006 for the i9-7940X, again a 5.8% difference. In singlecore, the i5 scores 1349 versus 1271, a 5.8% lead.

Cinebench R23 tells the same story. The i5-13500E reaches 22772 in multicore, while the i9-7940X manages 21444, a 5.8% gap. In singlecore, the i5 scores 3214 versus 3027, another 5.8% difference. Across the entire benchmark suite, the i5-13500E is consistently about 5.8% faster in multicore tests and between 5.6% and 5.8% faster in singlecore tests. This consistency suggests a fundamental per-clock and architectural advantage rather than a workload-specific quirk.

The Geekbench results, available only for the i9-7940X, show a multicore score of 10516 and a singlecore score of 1445. These are not comparable to the i5-13500E, which has no Geekbench entries in the database. However, the Cinebench results are sufficient to establish the i5's superiority.

FAQ

Q: Which processor has more threads?

A: The Intel Core i9-7940X has 28 threads, while the Intel Core i5-13500E has 20 threads. Despite having fewer threads, the i5-13500E still wins all multicore benchmarks.

Q: Does the i5-13500E support ECC memory?

A: Yes, the Intel Core i5-13500E supports ECC memory. The Intel Core i9-7940X does not.

Q: Which processor has a higher boost clock?

A: The Intel Core i5-13500E has a boost clock of 4.60 GHz, which is higher than the i9-7940X's boost clock of 4.40 GHz.

Q: What is the TDP difference between the two?

A: The Intel Core i5-13500E has a TDP of 65 W, while the Intel Core i9-7940X has a TDP of 165 W. The i5-13500E draws significantly less power.

Q: Which processor has integrated graphics?

A: Only the Intel Core i5-13500E has integrated graphics, specifically the UHD Graphics 770. The Intel Core i9-7940X has no integrated graphics listed.

Q: Are the sockets compatible?

A: No. The Intel Core i9-7940X uses Intel Socket 2066, while the Intel Core i5-13500E uses Intel Socket 1700. They are not interchangeable.

Where Each One Wins

The Intel Core i5-13500E wins in every recorded benchmark category. It is faster in Cinebench R15, R20, and R23, both multicore and singlecore. This makes it the superior choice for rendering, video encoding, compilation, and any other workload that benefits from Cinebench-style threaded performance. Its higher boost clock and larger cache structure support faster single-threaded execution as well. The i5-13500E also carries a much lower TDP of 65 W, making it suitable for compact or power-conscious builds. It supports DDR4 and DDR5 memory, giving platform flexibility, and includes ECC support and integrated graphics, which are useful for workstation and basic display output scenarios.

The Intel Core i9-7940X wins in no benchmark category. Its only advantages lie in non-performance areas: it has more threads (28 versus 20), a higher memory bandwidth figure (85.3 GB/s), more PCIe lanes (44 Gen 3 lanes versus 16 Gen 5 lanes), a quad-channel memory bus, and an unlocked multiplier. It also has a larger die size of 484 mm². These features may matter for specific legacy platform requirements, but they do not translate into any performance win in the recorded data. The i9-7940X is an end-of-life product, released in 2017, while the i5-13500E is active and was released in 2023.

Specification Differences

The two processors differ on nearly every major specification. The i9-7940X has 14 cores and 28 threads; the i5-13500E has 14 cores and 20 threads. Base clocks are 3.10 GHz versus 2.40 GHz, but boost clocks are 4.40 GHz versus 4.60 GHz, favoring the i5-13500E. TDP is 165 W for the i9-7940X and 65 W for the i5-13500E. Sockets differ: Socket 2066 versus Socket 1700.

The architecture and process node differ as well: Skylake-X on 14 nm versus Raptor Lake on 10 nm. The die size is 484 mm² for the i9-7940X and 215 mm² for the i5-13500E. Cache configurations differ across all levels: L1 is 64 KB per core versus 80 KB per core, L2 is 1 MB per core versus 1.25 MB per core, and L3 is 19.25 MB shared versus 24 MB shared.

Memory support diverges sharply. The i9-7940X supports only DDR4 with a quad-channel bus and 85.3 GB/s bandwidth. The i5-13500E supports DDR4 and DDR5 with a dual-channel bus and no recorded bandwidth. ECC memory is absent on the i9-7940X and present on the i5-13500E. PCIe capability also differs: Gen 3 with 44 lanes on the i9-7940X versus Gen 5 with 16 lanes on the i5-13500E. Integrated graphics are absent on the i9-7940X and present as UHD Graphics 770 on the i5-13500E. The i9-7940X has an unlocked multiplier; the i5-13500E does not. Production status is end-of-life for the i9-7940X and active for the i5-13500E. The i9-7940X has a recorded launch MSRP of $1399, while the i5-13500E has no launch MSRP listed.