Intel Core i9-13900T vs Intel Core Ultra 7 265HX Comparison

The Verdict

The benchmark data presents a clear overall winner in the Intel Core Ultra 7 265HX, which claims 14 of the 17 head-to-head tests against the Intel Core i9-13900T. The Core Ultra 7 265HX posts an average benchmark score of 63173, placing it in the 93rd percentile of all CPUs, while the Core i9-13900T averages 61723 and sits in the 92nd percentile. The ultra-portable mobile chip wins virtually every Cinebench test and dominates in encryption, extended instructions, prime number finding, floating point math, physics, and multithreaded workloads.

However, the Core i9-13900T is not without its merits. It wins in data compression by 4.9%, integer math by 19.3%, and random string sorting by 1.4%. Those three wins point to a specific niche: workloads that rely on high integer throughput and data manipulation. The Core i9-13900T also offers ECC memory support, which the Core Ultra 7 265HX lacks, making it the choice for systems where data integrity is paramount.

For most users, the Core Ultra 7 265HX is the superior processor. It delivers higher single-thread performance, better multithreaded scores, and substantially stronger floating point and encryption capabilities. The Core i9-13900T appeals to a narrower audience: those who need ECC memory, value integer math performance, and operate within the desktop platform constraints of Socket 1700. The data also notes the Core i9-13900T carries a launch MSRP of $549.

Architecture Differences

The two processors come from different generations and foundries. The Intel Core Ultra 7 265HX belongs to the Core Ultra Series 2, using the Arrow Lake architecture on a 3 nm process manufactured by TSMC. It contains 17,800 million transistors on a 243 mm² die. The Intel Core i9-13900T is a 13th Gen part based on Raptor Lake, built on Intel's 10 nm process with a 257 mm² die size. The Core Ultra 7 265HX is a mobile part on Intel BGA 2114, while the Core i9-13900T is a desktop processor on Intel Socket 1700.

Core counts differ substantially. The Core Ultra 7 265HX has 20 cores and 20 threads, meaning no hyperthreading. The Core i9-13900T has 24 cores and 32 threads, relying on a hybrid layout with performance and efficiency cores plus hyperthreading. Cache hierarchies also differ: the Core Ultra 7 265HX has 192 KB of L1 per core and 3 MB of L2 per core, with 30 MB of shared L3. The Core i9-13900T has 80 KB of L1 per core, 2 MB of L2 per core, and a larger 36 MB of shared L3.

Clock speeds are notable. The Core Ultra 7 265HX runs at a base clock of 2.60 GHz and boosts to 5.30 GHz. The Core i9-13900T has a base clock of 1100.00 (the recorded value) and the same 5.30 GHz boost. The Core Ultra 7 265HX has a 55 W TDP, while the Core i9-13900T is rated at 35 W. The Core Ultra 7 265HX supports DDR5 memory only, has dual-channel memory, and offers 102.4 GB/s of memory bandwidth. The Core i9-13900T supports both DDR4 and DDR5 with dual-channel memory, but its memory bandwidth is not recorded. The Core Ultra 7 265HX has an unlocked multiplier, while the Core i9-13900T does not. The integrated graphics differ too: Arc Xe-LPG Graphics 64EU on the Core Ultra 7 265HX versus UHD Graphics 770 on the Core i9-13900T. Both use PCIe Gen 5 with 20 CPU lanes.

Where Each One Wins

The Core Ultra 7 265HX wins across nearly every benchmark category. In Cinebench, it takes all six tests, with margins of 11.3% or 11.4% across R15, R20, and R23 in both single and multi-core. This indicates a consistent architectural advantage in rendering and CPU-bound workloads. In PassMark, the Core Ultra 7 265HX wins data encryption by 14.7%, extended instructions by 37.1%, find prime numbers by 132%, floating point math by 48.6%, multithread by 11.5%, physics by 19.3%, and single thread by 7.7%. These results show a processor that excels in scientific computing, encryption, and any workload that benefits from strong floating point execution.

The Core i9-13900T wins three PassMark tests: data compression by 4.9%, integer math by 19.3%, and random string sorting by 1.4%. These wins suggest the 32-thread configuration and larger L3 cache help in integer-heavy data manipulation tasks. The 36 MB shared L3 cache likely contributes to the sorting and compression advantages, as larger datasets can remain resident in cache. The Core i9-13900T also supports ECC memory, a feature absent from the Core Ultra 7 265HX, making it suitable for error-sensitive server or workstation applications.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core Ultra 7 265HX has an average benchmark score of 63173, compared to 61723 for the Intel Core i9-13900T. The Core Ultra 7 265HX scores 0.2% higher than its nearest rival, the AMD Ryzen AI 7 450G, while the Core i9-13900T scores 0.1% lower than its nearest rival, the Intel Core i9-13900K.

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

A: The Core Ultra 7 265HX wins in every single-threaded test. It leads by 11.4% in Cinebench R15 single-core, 11.3% in R20 single-core, 11.3% in R23 single-core, and 7.7% in PassMark single thread, with scores of 4500 versus 4177.

Q: Does the Core i9-13900T have any significant advantages?

A: Yes, it wins in PassMark data compression by 4.9%, integer math by 19.3%, and random string sorting by 1.4%. It also supports ECC memory, which the Core Ultra 7 265HX does not.

Q: What are the core and thread counts?

A: The Core Ultra 7 265HX has 20 cores and 20 threads. The Core i9-13900T has 24 cores and 32 threads, giving it a thread advantage due to hyperthreading.

Q: Which processor has a larger L3 cache?

A: The Core i9-13900T has 36 MB of shared L3 cache, while the Core Ultra 7 265HX has 30 MB of shared L3 cache.

Q: Are both processors currently active in production?

A: Yes, both the Intel Core Ultra 7 265HX and the Intel Core i9-13900T are listed as active production parts.

Head-to-Head Benchmarks

The Cinebench results are uniformly in favor of the Core Ultra 7 265HX. In Cinebench R15 multicore, it scores 4096 against 3680, a lead of 11.3%. The single-core R15 result shows 578 versus 519, an 11.4% advantage. Cinebench R20 multicore gives 17069 versus 15337, again 11.3% ahead. The R20 single-core score is 2409 against 2165, also 11.3%. Cinebench R23 multicore shows 40642 versus 36517, with a delta of 11.3%. The R23 single-core result is 5737 versus 5155, an 11.3% margin. These consistent margins suggest a per-clock efficiency advantage in the Arrow Lake architecture rather than a core-count effect, since the Core i9-13900T actually has more cores and threads.

PassMark results show a more varied picture. The largest win for the Core Ultra 7 265HX is in find prime numbers, where it scores 406 against 175, a staggering 132% advantage. Floating point math follows with 161605 versus 108779, a 48.6% lead. Extended instructions show 40741 versus 29719, a 37.1% gap. Physics scores 2978 against 2497, a 19.3% win. Data encryption shows 39472 versus 34415, a 14.7% edge. Multithread scores 47985 versus 43036, an 11.5% advantage. Single thread scores 4500 versus 4177, a 7.7% lead.

The Core i9-13900T wins integer math decisively with 157324 versus 126954, a 19.3% advantage. This is its largest victory and suggests that the 32 threads provide genuine throughput benefits in integer operations. Data compression shows 538254 versus 511817, a 4.9% win. Random string sorting is close: 63358 versus 62458, a 1.4% margin. These wins, while fewer in number, demonstrate that the Raptor Lake part retains strength in specific workloads.

Specification Differences

The two processors differ in nearly every major specification category. The Core Ultra 7 265HX uses the Arrow Lake architecture on a 3 nm TSMC process, while the Core i9-13900T uses Raptor Lake on Intel's 10 nm process. The Core Ultra 7 265HX has 20 cores and 20 threads; the Core i9-13900T has 24 cores and 32 threads. Base clocks differ significantly: 2.60 GHz for the Core Ultra 7 265HX versus 1100.00 for the Core i9-13900T, though both boost to 5.30 GHz.

TDP ratings show a 55 W specification for the Core Ultra 7 265HX and 35 W for the Core i9-13900T. The socket types are incompatible: Intel BGA 2114 for the mobile part, Intel Socket 1700 for the desktop part. Cache configurations differ in size and organization. The Core Ultra 7 265HX has 192 KB of L1 per core and 3 MB of L2 per core, with 30 MB of shared L3. The Core i9-13900T has 80 KB of L1 per core and 2 MB of L2 per core, with 36 MB of shared L3.

Memory support diverges: the Core Ultra 7 265HX supports only DDR5, while the Core i9-13900T supports both DDR4 and DDR5. The Core Ultra 7 265HX has a recorded memory bandwidth of 102.4 GB/s; the Core i9-13900T has no recorded bandwidth value. ECC memory is supported only on the Core i9-13900T. Integrated graphics differ, with Arc Xe-LPG Graphics 64EU on the Core Ultra 7 265HX and UHD Graphics 770 on the Core i9-13900T. The Core Ultra 7 265HX has an unlocked multiplier; the Core i9-13900T does not. The market segments differ as well: mobile for the Core Ultra 7 265HX, desktop for the Core i9-13900T. Release dates are also distinct, with the Core i9-13900T released earlier in January 2023 and the Core Ultra 7 265HX released in January 2025.