Intel Core i5-14600K vs Intel Core Ultra 5 245 Comparison

The Intel Core Ultra 5 245 and Intel Core i5-14600K are both 14-core desktop processors, but they deliver sharply contrasting performance profiles. The data shows the Ultra 5 245 wins 13 of the 17 head-to-head benchmark comparisons, yet the i5-14600K claims victory in several specific workloads. This analysis breaks down the benchmark results, identifies where each processor excels, and examines the architectural decisions that separate the two.

Head-to-Head Benchmarks

The most dramatic split between these two CPUs appears in single-threaded and multi-threaded Cinebench tests. In Cinebench R23 single-core, the Core Ultra 5 245 scores 4648 against the i5-14600K’s 2064, a massive 125.2% advantage. Similarly, in Cinebench R15 single-core, the Ultra 5 245 leads with 468 points versus 297, a 57.6% delta. This is not a marginal improvement; the Arrow Lake-based chip nearly doubles the older Raptor Lake part in one rendering test.

Multi-threaded Cinebench results tell a more nuanced story. The Ultra 5 245 wins Cinebench R23 multi-core with 32924 points against 24491 for the i5-14600K, a 34.4% lead. However, in Cinebench R15 multi-core, the i5-14600K fights back with 3640 points versus 3318, an 8.8% win for the older chip. The R20 multi-core test is essentially a tie, with the Ultra 5 245 edging ahead 13828 to 13709, a 0.9% margin. This inconsistency suggests the newer architecture scales better in longer, more demanding renders but loses out in the shorter R15 workload.

PassMark results further highlight the divergent strengths. The i5-14600K dominates integer math, scoring 125737 against 91187 for the Ultra 5 245, a 27.5% advantage. It also leads in data compression with 482020 points versus 400942, a 16.8% gap, and random string sorting at 51949 versus 49140, a 5.4% win. These are classic throughput-heavy tasks where the i5’s 20 threads provide a clear edge.

Conversely, the Ultra 5 245 wins decisively in floating-point math, scoring 120548 versus 92794, a 29.9% improvement. It also excels at prime number finding, scoring 365 versus 162, a 125.3% jump, and extended instructions, 33304 versus 28546, a 16.7% lead. Data encryption also favors the Ultra 5 245, 30236 to 27533, a 9.8% margin. The newer chip’s single-thread score of 4394 beats the i5-14600K’s 4270 by 2.9%, and the multithread score is nearly identical at 38706 versus 38682, a 0.1% difference.

The average benchmark score tells a similar story: the Ultra 5 245 averages 48995, while the i5-14600K averages 48618, a 0.8% gap in favor of the newer processor. Both sit at the 90th percentile of all CPUs, and the nearest rivals list confirms they are closely matched. The Ultra 5 245 is 0.4% behind the AMD Ryzen 7 PRO 5755G and 0.5% behind the Ryzen 9 7900, while the i5-14600K is 0.2% behind the Intel Xeon Gold 5318H and 0.3% ahead of the AMD EPYC 4345P.

Where Each One Wins

The Intel Core Ultra 5 245 is the clear winner for single-threaded and floating-point intensive applications. Its 125.2% lead in Cinebench R23 single-core and 29.9% lead in floating-point math make it the better choice for lightly-threaded workloads, scientific simulations, and financial modeling. The 125.3% advantage in prime number finding also suggests superior branch prediction and arithmetic logic unit efficiency. For users running Cinebench R20 multi-core, the 0.9% win indicates the Ultra 5 245 handles moderately parallel rendering tasks at least as well as the older chip, despite having fewer threads.

The Intel Core i5-14600K wins where raw thread count matters most. Its 27.5% lead in integer math and 16.8% lead in data compression point to advantages in database operations, file archiving, and code compilation. The 5.4% win in random string sorting reinforces this pattern, making the i5-14600K the stronger option for text processing and sorting algorithms. The Cinebench R15 multi-core win, while smaller at 8.8%, indicates the i5-14600K can outperform the Ultra 5 245 in shorter bursts of parallel work.

For general-purpose computing, the PassMark multithread scores are nearly identical, with the Ultra 5 245 leading by just 0.1%. This means most mixed workloads will see no practical difference in performance. The deciding factor will be the specific mix of integer versus floating-point operations in a given application. The Ultra 5 245 also wins in physics simulation by 3.9%, which may appeal to users running physics-based rendering engines.

FAQ

Q: Which processor has a higher single-thread performance?

A: The Intel Core Ultra 5 245 wins every single-thread benchmark in the data. It scores 4648 in Cinebench R23 single-core versus 2064 for the i5-14600K, a 125.2% advantage, and leads PassMark single-thread at 4394 versus 4270, a 2.9% margin.

Q: Does the i5-14600K win any multi-threaded benchmarks?

A: Yes. The i5-14600K wins Cinebench R15 multi-core with 3640 points against 3318, an 8.8% lead. It also wins PassMark data compression (482020 versus 400942), integer math (125737 versus 91187), and random string sorting (51949 versus 49140).

Q: How do the two processors compare in average benchmark scores?

A: The Core Ultra 5 245 has an average benchmark score of 48995, while the i5-14600K averages 48618. This puts the Ultra 5 245 0.8% ahead. Both CPUs are at the 90th percentile of all CPUs.

Q: What is the thread count difference between the two?

A: The Core Ultra 5 245 has 14 cores and 14 threads. The Core i5-14600K has 14 cores and 20 threads. Both have the same 3.50 GHz base clock, but the i5-14600K boosts to 5.30 GHz versus 5.10 GHz for the Ultra 5 245.

Q: Which processor is better for data encryption tasks?

A: The Core Ultra 5 245 wins data encryption with a score of 30236, which is 9.8% higher than the i5-14600K’s 27533.

Q: Are the two processors similar in multi-threaded PassMark performance?

A: Yes, they are nearly identical. The Ultra 5 245 scores 38706 and the i5-14600K scores 38682, a difference of just 0.1% in favor of the Ultra 5 245.

Specification Differences

The two processors differ in several key specifications. The Core Ultra 5 245 uses 14 threads, while the Core i5-14600K has 20 threads. The boost clock also differs, with the i5-14600K reaching 5.30 GHz versus 5.10 GHz for the Ultra 5 245. The thermal design power (TDP) is significantly lower on the Ultra 5 245 at 65 watts, compared to 125 watts for the i5-14600K.

The socket is different: the Ultra 5 245 uses Intel Socket 1851, while the i5-14600K uses Intel Socket 1700. Memory support varies, with the Ultra 5 245 supporting only DDR5, while the i5-14600K supports both DDR4 and DDR5. The memory bandwidth is listed as 102.4 GB/s for the Ultra 5 245, with no figure given for the i5-14600K. PCIe lanes also differ: the Ultra 5 245 has 20 Gen 5 lanes, while the i5-14600K has 16 Gen 5 lanes.

The integrated graphics differ, with the Ultra 5 245 featuring Arc Xe-LPG Graphics 64EU, while the i5-14600K has UHD Graphics 770. The Ultra 5 245 has a locked multiplier, while the i5-14600K is multiplier unlocked. The release dates are different, with the Ultra 5 245 launching on 2025-01-06 and the i5-14600K on 2023-10-16. The launch MSRP is $270 for the Ultra 5 245 and $319 for the i5-14600K.

The cache configuration also differs. The Ultra 5 245 has 192 KB of L1 cache per core and 3 MB of L2 cache per core, while the i5-14600K has 80 KB of L1 and 2 MB of L2 per core. Both have 24 MB of shared L3 cache.

Architecture Differences

The Core Ultra 5 245 is built on Arrow Lake architecture with the codename Arrow Lake-S, fabricated on a 3 nm process by TSMC. The i5-14600K uses Raptor Lake architecture with the codename Raptor Lake-R, built on a 10 nm process by Intel. The Ultra 5 245 has 17,800 million transistors on a 243 mm² die, while the i5-14600K’s transistor count is not listed and its die size is 257 mm².

The Ultra 5 245 is part of the Core Ultra Series 2, while the i5-14600K is from the Core 14th Gen series. The generation labels reflect this: the Ultra 5 is listed as "Ultra 5 (Arrow Lake)" and the i5-14600K as "Core i5 (Raptor Lake Refresh)". Both are active production desktop parts from Intel.

The process node difference is significant: 3 nm versus 10 nm. This explains the lower TDP of 65 watts for the Ultra 5 245 despite similar core counts. The foundry also differs, with TSMC producing the Ultra 5 245 and Intel producing the i5-14600K.

Both support ECC memory and are dual-channel. The Ultra 5 245’s memory bandwidth is specified at 102.4 GB/s, while no figure is provided for the i5-14600K. The PCIe implementation is Gen 5 for both, but the Ultra 5 245 offers 20 lanes versus 16 lanes on the i5-14600K.

The Ultra 5 245’s Arc Xe-LPG Graphics 64EU is a more modern integrated GPU compared to the i5-14600K’s UHD Graphics 770. The Ultra 5 245 is also a locked processor, meaning it lacks overclocking capability, while the i5-14600K’s unlocked multiplier allows for user overclocking. The part numbers are SRVFE for the Ultra 5 245 and SRN43 for the i5-14600K.