Intel Core Ultra 5 225T vs Intel Core Ultra 5 245K Comparison

Head-to-Head Benchmarks

The Intel Core Ultra 5 245K dominates the head-to-head comparison, winning 16 of the 17 recorded benchmark tests. The Intel Core Ultra 5 225T wins only once, but that single victory is a notable outlier in single-core rendering workloads.

The 245K's largest margin comes in PassMark data compression, where it scores 458817 against the 225T's 233998, a 49% advantage. Random string sorting shows a similar gap at 47.8% (55098 vs 28774). Extended instructions favor the 245K by 46.6% (37617 vs 20083), while data encryption shows a 45.1% lead (33286 vs 18289). These workloads all scale heavily with core count and memory bandwidth, which explains the wide separation.

Cinebench multi-core results tell the same story. In Cinebench R15 multi-core, the 245K scores 3850 versus 2214, a 42.5% lead. Cinebench R20 multi-core shows a 40% gap (15368 vs 9227), and Cinebench R23 multi-core narrows to 12.3% (25066 vs 21971). The R23 result is the closest multi-threaded contest in the suite, suggesting that the 225T's efficiency-oriented design holds up better under sustained rendering loads than in shorter burst tests.

PassMark multithread confirms the pattern with a 41.1% delta (43047 vs 25358). Integer math favors the 245K by 39.6% (98524 vs 59543), floating point math by 36.7% (130678 vs 82751), and physics by 33.4% (3081 vs 2053). Prime number finding shows a 31.4% gap (414 vs 284).

Single-thread results are much closer. PassMark single-thread scores 4714 for the 245K versus 4348 for the 225T, a 7.8% difference. Cinebench R15 single-core is nearly tied at 322 versus 312, just 3.1% apart. Cinebench R20 single-core, however, shows a surprising 40% gap (2169 vs 1302), contradicting the other single-thread tests.

The single exception to the 245K's sweep is Cinebench R23 single-core, where the 225T scores 3101 versus 2132, a 45.5% advantage. This result is inconsistent with the other single-core tests in the database and appears as an isolated data point rather than part of a broader trend. The 225T also holds a higher R23 single-core score than its own R20 single-core score would imply, which reinforces the outlier nature of this measurement.

Average benchmark scores place the 245K at 54053, which ranks at the 91st percentile among all CPUs. The 225T averages 30468, ranking at the 82nd percentile. The 245K's nearest rivals include the Intel Xeon 6505P (0.7% ahead), Intel Core i7-14700F (0.8% ahead), and Intel Xeon Phi 7290 (1.1% ahead), with the AMD Ryzen 9 9900X3D 1.3% ahead. The 225T sits within 0.3% of the AMD Ryzen 5 7640HS and AMD Ryzen 7 7736U, and 0.2% behind the Intel Core i9-11980HK, while trailing the Intel Core i5-13600H by 0.3%.

The Verdict

The data indicates a clear performance hierarchy. The Intel Core Ultra 5 245K is the stronger processor in nearly every measured workload, with advantages ranging from 3.1% in Cinebench R15 single-core to 49% in data compression. Its 14 cores and 14 threads provide a substantial multi-threaded foundation that the 10-core, 10-thread 225T cannot match.

The 225T's only benchmark victory, the Cinebench R23 single-core result, is an anomaly within the broader test suite. Every other single-thread test favors the 245K, and the 225T's other Cinebench single-core scores are consistent with a much smaller gap. Buyers optimizing for single-core performance should rely on the PassMark single-thread and Cinebench R15 results, which are more internally consistent.

The percentile rankings reinforce this conclusion. The 245K's 91st percentile placement versus the 225T's 82nd percentile represents a meaningful separation in overall CPU capability. The 245K's nearest rivals include desktop and server processors with higher average scores, while the 225T competes in the range of mid-range mobile and desktop chips.

The 245K also offers a higher boost clock at 5.20 GHz versus 4.90 GHz, and a higher base clock at 4.20 GHz versus 2.50 GHz. These clock advantages, combined with the additional cores, explain the benchmark gaps. The 245K carries a launch MSRP of $319, while the 225T has no recorded launch MSRP in the database.

Architecture Differences

Both processors share the Arrow Lake architecture and the Arrow Lake-S codename, built on the same 3 nm process node from TSMC. Both use the Intel Socket 1851 and belong to the Core Ultra Series 2 generation. Transistor count is identical at 17,800 million, and die size matches at 243 mm².

The core configurations differ significantly. The 225T uses 10 cores and 10 threads, while the 245K uses 14 cores and 14 threads. Neither processor supports simultaneous multithreading, so thread counts equal core counts for both.

Cache hierarchies are similar in structure but differ in L3 capacity. Both chips provide 192 KB of L1 per core and 3 MB of L2 per core. The 225T shares 20 MB of L3, while the 245K shares 24 MB. The larger L3 on the 245K provides additional headroom for data-intensive workloads.

Memory support is identical in type and bus configuration: both support DDR5 through a dual-channel interface with 102.4 GB/s of memory bandwidth. PCIe capabilities match as well, with Gen 5 and 20 CPU lanes on both parts.

The integrated graphics differ in execution unit count. The 225T includes Arc Xe-LPG Graphics with 16 EU, while the 245K includes Arc Xe-LPG Graphics with 64 EU. This fourfold difference in EU count gives the 245K substantially more graphics throughput, though neither part is positioned as a primary gaming GPU.

ECC memory support also differs. The 245K supports ECC memory, while the 225T does not. This makes the 245K more suitable for error-sensitive compute environments.

The 245K has an unlocked multiplier, enabling overclocking, while the 225T's multiplier is locked. The 245K also has a recorded part number (SRQCT), while the 225T's part number is listed as unknown.

Specification Differences

The two processors differ in the following recorded specifications:

• Cores: 10 on the 225T, 14 on the 245K
• Threads: 10 on the 225T, 14 on the 245K
• Base clock: 2.50 GHz on the 225T, 4.20 GHz on the 245K
• Boost clock: 4.90 GHz on the 225T, 5.20 GHz on the 245K
• TDP: 65 on the 225T, 125 on the 245K
• L3 cache: 20 MB shared on the 225T, 24 MB shared on the 245K
• Integrated graphics: Arc Xe-LPG Graphics 16EU on the 225T, Arc Xe-LPG Graphics 64EU on the 245K
• ECC memory: false on the 225T, true on the 245K
• Multiplier unlocked: false on the 225T, true on the 245K
• Release date: 2024-12-31 on the 225T, 2024-10-23 on the 245K
• Launch MSRP: null on the 225T, $319 on the 245K
• Part number: unknown on the 225T, SRQCT on the 245K

Identical specifications include the 3 nm process node, TSMC foundry, 17,800 million transistors, 243 mm² die size, 192 KB L1 per core, 3 MB L2 per core, DDR5 memory support, dual-channel memory bus, 102.4 GB/s memory bandwidth, Gen 5 PCIe with 20 CPU lanes, Intel Socket 1851, and Arrow Lake architecture.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 245K has 14 cores and 14 threads, while the Intel Core Ultra 5 225T has 10 cores and 10 threads.

Q: What is the average benchmark score difference between the two?

A: The 245K averages 54053, ranking at the 91st percentile. The 225T averages 30468, ranking at the 82nd percentile.

Q: Did the 225T win any benchmarks at all?

A: Yes, the 225T won Cinebench R23 single-core with a score of 3101 versus 2132, a 45.5% advantage. This is its only win across the 17 recorded head-to-head tests.

Q: Do both processors support the same memory type?

A: Both support DDR5 through a dual-channel interface with 102.4 GB/s bandwidth. The 245K additionally supports ECC memory, while the 225T does not.

Q: Are both processors built on the same manufacturing process?

A: Yes, both use a 3 nm process from TSMC with 17,800 million transistors and a 243 mm² die size.

Q: Which processor has the higher boost clock?

A: The 245K boosts to 5.20 GHz, while the 225T boosts to 4.90 GHz. The 245K also has a higher base clock at 4.20 GHz versus 2.50 GHz.

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

A: The 225T has a TDP of 65, while the 245K has a TDP of 125.

Where Each One Wins

The Intel Core Ultra 5 245K wins in all multi-threaded workloads. Its 14 cores deliver a 42.5% lead in Cinebench R15 multi-core, a 40% lead in Cinebench R20 multi-core, and a 12.3% lead in Cinebench R23 multi-core. PassMark multithread shows a 41.1% gap, and all math-intensive PassMark tests favor the 245K by between 31.4% and 39.6%. Data compression, encryption, extended instructions, and random string sorting all show the 245K ahead by margins from 45.1% to 49%. This processor is the choice for rendering, compilation, data processing, and any workload that scales across cores.

The 245K also wins in most single-thread tests. PassMark single-thread shows a 7.8% lead, and Cinebench R15 single-core shows a 3.1% lead. The 245K's higher boost clock of 5.20 GHz supports these results. Its unlocked multiplier and 125 TDP allow for further performance tuning, and its ECC memory support suits workstation-class reliability requirements.

The Intel Core Ultra 5 225T wins in one specific scenario: Cinebench R23 single-core, where it scores 3101 against 2132. This result stands apart from every other measurement in the database, and the 225T's lower TDP of 65 suggests it may sustain high single-core clocks under thermal constraints. However, the 225T loses the other single-core tests, so this win does not establish a consistent single-core advantage.

The 225T's strengths are efficiency-oriented. Its 65 TDP is nearly half the 245K's 125 TDP, and its lower base clock of 2.50 GHz reduces idle power. Its 16EU integrated graphics consume less die area and power than the 245K's 64EU implementation. Systems constrained by thermal or power limits would favor the 225T, while systems seeking maximum throughput would favor the 245K.

The 245K's integrated graphics with 64 EU provide four times the execution units of the 225T's 16 EU, making the 245K more capable for light graphics tasks without a discrete GPU. Both chips share the same memory bandwidth, so memory-bound workloads will not differentiate the two based on memory throughput alone.

For users prioritizing raw compute, the 245K is the clear choice. For users prioritizing power efficiency and lower thermal output, the 225T offers a compelling alternative, though with significantly reduced multi-threaded performance. The 225T's 82nd percentile ranking still places it above most CPUs, but the 245K's 91st percentile reflects its position among the faster desktop processors in the database.