Intel Core i5-14600K vs Intel Core Ultra 7 265T Comparison

Where Each One Wins

The benchmark data splits these two Intel processors into clearly different use-case profiles. The Intel Core i5-14600K wins 8 of the 17 recorded head-to-head tests, while the Intel Core Ultra 7 265T wins 9. However, the margin of victory matters more than the raw count. The i5-14600K takes decisive wins in data compression, integer math, and random string sorting, making it the stronger choice for workload types that rely on sustained multi-threaded throughput and memory bandwidth. The Ultra 7 265T counters with overwhelming wins in single-core Cinebench tests and floating-point math, establishing itself as the better option for lightly threaded tasks and scientific or simulation workloads.

Looking at the specific test categories, the i5-14600K dominates in PassMark data compression with a score of 482,020 versus 370,158 for the Ultra 7, a 30.2% advantage. It also leads integer math by 19.8% (125,737 versus 104,943) and random string sorting by 17% (51,949 versus 44,400). These are classic database, file-compression, and general productivity scenarios. The Ultra 7 265T, by contrast, wins floating-point math by 28.5% (129,817 versus 92,794) and find prime numbers by 49.7% (322 versus 162), pointing to strength in computational science and numerical analysis.

In Cinebench, the picture is more nuanced. The i5-14600K wins R15 multicore by 14.5% (3,640 versus 3,180) and R20 multicore by 3.4% (13,709 versus 13,254). But the Ultra 7 265T wins R23 multicore by 22.4% (31,558 versus 24,491), a result that suggests the longer the render workload, the more the Ultra 7 pulls ahead. Single-core Cinebench results heavily favor the Ultra 7, with a 53.7% lead in R23 single-core (4,455 versus 2,064) and a 33.9% lead in R15 single-core (449 versus 297). The R20 single-core test is the exception, where the i5-14600K edges ahead by 3.4% (1,935 versus 1,871).

For everyday responsiveness and single-threaded application performance, PassMark single-thread results show the Ultra 7 at 4,338 versus 4,270 for the i5, a modest 1.6% lead. The Ultra 7 also wins data encryption (29,687 versus 27,533, a 7.3% advantage) and extended instructions (28,609 versus 28,546, a tiny 0.2% margin). The i5-14600K wins PassMark multithread by 4.3% (38,682 versus 37,084) and physics by 3.4% (2,473 versus 2,391).

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i5-14600K has an average benchmark score of 48,618, while the Intel Core Ultra 7 265T scores 47,697. Both sit at the 90th percentile among all CPUs in the database.

Q: How do the two compare in single-threaded performance?

A: The Intel Core Ultra 7 265T wins PassMark single-thread with 4,338 versus 4,270, a 1.6% lead. In Cinebench R23 single-core, the Ultra 7 is far ahead at 4,455 versus 2,064, a 53.7% advantage. The i5-14600K does win Cinebench R20 single-core by 3.4% (1,935 versus 1,871).

Q: Which processor is better for multi-threaded rendering?

A: It depends on the workload. The i5-14600K wins Cinebench R15 multicore by 14.5% and R20 multicore by 3.4%. However, the Ultra 7 265T wins Cinebench R23 multicore by 22.4%, and the PassMark multithread test goes to the i5 by 4.3%.

Q: What are the core and thread counts?

A: The Intel Core i5-14600K has 14 cores and 20 threads. The Intel Core Ultra 7 265T has 20 cores and 20 threads. Despite having more cores, the Ultra 7 has the same thread count because it does not use hyper-threading.

Q: Do these processors support ECC memory?

A: Yes, the Intel Core i5-14600K supports ECC memory. The Intel Core Ultra 7 265T does not support ECC memory.

Q: Which processor has the higher boost clock?

A: Both processors have a boost clock of 5.30 GHz. The base clocks differ significantly, with the i5-14600K at 3.50 GHz and the Ultra 7 265T at 1.50 GHz.

Head-to-Head Benchmarks

The largest single victory in the entire comparison belongs to the Intel Core Ultra 7 265T in Cinebench R23 single-core, where it scores 4,455 against the i5-14600K's 2,064, a 53.7% margin. This is an enormous gap and indicates that the Ultra 7's architecture delivers dramatically better per-thread performance in this render workload. The Cinebench R15 single-core test shows a similar pattern, with the Ultra 7 winning 449 versus 297, a 33.9% lead.

The Intel Core i5-14600K answers with its own dominant result in PassMark data compression, scoring 482,020 versus 370,158, a 30.2% advantage. This is the largest win for the i5 and highlights its strength in memory-intensive compression tasks. The i5 also wins integer math by 19.8% (125,737 versus 104,943) and random string sorting by 17% (51,949 versus 44,400).

The Ultra 7 265T takes floating-point math decisively, 129,817 versus 92,794, a 28.5% margin. It also wins find prime numbers by 49.7% (322 versus 162), a test that stresses integer and algorithmic efficiency. Data encryption goes to the Ultra 7 by 7.3% (29,687 versus 27,533), while extended instructions are essentially tied, with the Ultra 7 ahead by just 0.2% (28,609 versus 28,546).

In the Cinebench multicore tests, results are split across generations. R15 multicore favors the i5 by 14.5% (3,640 versus 3,180), and R20 multicore favors the i5 by 3.4% (13,709 versus 13,254). But R23 multicore flips decisively to the Ultra 7, 31,558 versus 24,491, a 22.4% lead. This suggests that longer render times expose the Ultra 7's higher core count and efficiency advantages.

PassMark multithread goes to the i5 by 4.3% (38,682 versus 37,084), and physics also goes to the i5 by 3.4% (2,473 versus 2,391). Single-thread PassMark results are close, with the Ultra 7 winning 4,338 versus 4,270, a 1.6% margin that is consistent across both listed single-thread entries.

Specification Differences

The two processors differ in nearly every major specification category. The Intel Core i5-14600K uses 14 cores and 20 threads, while the Intel Core Ultra 7 265T uses 20 cores and 20 threads. Base clock speeds are 3.50 GHz for the i5 and 1.50 GHz for the Ultra 7, though both boost to 5.30 GHz. Thermal design power differs substantially: the i5 is rated at 125 W, while the Ultra 7 is rated at 35 W.

The socket and platform are different. The i5-14600K uses Intel Socket 1700, while the Ultra 7 265T uses Intel Socket 1851. Memory support also differs: the i5 supports both DDR4 and DDR5, while the Ultra 7 supports DDR5 only. The Ultra 7 has a listed memory bandwidth of 102.4 GB/s, while the i5 has no recorded memory bandwidth figure. ECC memory support is present on the i5 but absent on the Ultra 7.

PCIe lanes differ, with the i5 offering Gen 5 with 16 lanes (CPU only) and the Ultra 7 offering Gen 5 with 20 lanes (CPU only). Integrated graphics are different as well: the i5 uses UHD Graphics 770, while the Ultra 7 uses Arc Xe-LPG Graphics 64EU. The multiplier is unlocked on the i5 but locked on the Ultra 7. Launch MSRP is $319 for the i5 and $384 for the Ultra 7. Release dates are 2023-10-16 for the i5 and 2025-01-06 for the Ultra 7. Part numbers are SRN43 for the i5 and SRQCS for the Ultra 7.

Architecture Differences

The architectural gap between these two processors is generational. The Intel Core i5-14600K is built on Raptor Lake architecture (codenamed Raptor Lake-R) and represents the Core 14th Gen series. It uses a 10 nm process node fabricated by Intel. The Intel Core Ultra 7 265T is built on Arrow Lake architecture (codenamed Arrow Lake-S) and represents the Core Ultra Series 2. It uses a 3 nm process node fabricated by TSMC. The Ultra 7's transistor count is listed at 17,800 million, while the i5 has no recorded transistor count. Die sizes are 257 mm² for the i5 and 243 mm² for the Ultra 7.

Cache hierarchies differ significantly. The i5-14600K has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 24 MB of shared L3 cache. The Ultra 7 265T has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 30 MB of shared L3 cache. The larger per-core L1 and L2 caches on the Ultra 7 help explain its strong single-core performance in Cinebench tests.

The foundry and process node differences are notable: Intel fabricates the i5 on its own 10 nm process, while TSMC fabricates the Ultra 7 on a 3 nm process. This likely contributes to the Ultra 7's much lower 35 W TDP despite having more cores. The i5's 125 W TDP reflects the older, less efficient Raptor Lake design. Both processors have integrated graphics, but the Ultra 7's Arc Xe-LPG Graphics 64EU is a newer GPU architecture than the UHD Graphics 770 in the i5.

The Verdict

The data points to two distinct buyers. The Intel Core i5-14600K is the pick for users whose workloads involve data compression, integer math, string sorting, and general multithreaded productivity. Its 30.2% lead in data compression and 19.8% lead in integer math are substantial, and it also wins PassMark multithread by 4.3%. The i5 also wins Cinebench R15 and R20 multicore, making it a solid choice for shorter render tasks. It supports ECC memory and DDR4, which may matter for certain workstation or server-adjacent builds. Its launch MSRP is $319.

The Intel Core Ultra 7 265T is the pick for users who prioritize single-core performance, floating-point math, and energy efficiency. Its 53.7% lead in Cinebench R23 single-core and 33.9% lead in R15 single-core are decisive. It dominates floating-point math by 28.5% and find prime numbers by 49.7%. The Ultra 7 also wins Cinebench R23 multicore by 22.4%, suggesting that longer render workloads favor its 20-core design. Its 35 W TDP makes it far more power-efficient than the i5's 125 W rating, and it offers 20 PCIe Gen 5 lanes versus 16 on the i5. Its launch MSRP is $384.

The average benchmark scores are close, with the i5 at 48,618 and the Ultra 7 at 47,697, a difference of less than 2%. Both sit at the 90th percentile. The i5 edges out nearest rivals like the Intel Xeon Gold 5318H by 0.2% and trails the AMD EPYC 4345P by 0.3%. The Ultra 7 trails the AMD Ryzen 9 7900X3D by 0.4% and leads the AMD Ryzen 9 PRO 5945 by 0.4%. Neither processor shows a clear overall superiority in the aggregate data.

Choose the i5-14600K for compression-heavy, integer-heavy, and general multitasking workloads where the 14-core, 20-thread configuration with 125 W TDP is acceptable. Choose the Ultra 7 265T for single-threaded responsiveness, floating-point computation, and power-sensitive builds where the 20-core, 20-thread design with 35 W TDP and 3 nm TSMC process delivers better efficiency and stronger long-form render performance. The locked multiplier on the Ultra 7 and unlocked multiplier on the i5 may also factor into overclocking preferences, though the data shows the i5 already wins several multicore tests at stock settings.