Intel Core Ultra 5 245 vs Intel Core Ultra 7 265T Comparison

Both the Intel Core Ultra 5 245 and the Intel Core Ultra 7 265T belong to the same Arrow Lake-S family, yet the benchmark data reveals a fascinating inversion of expectations based on their specifications. The Ultra 5 245, despite having fewer cores, consistently outperforms the Ultra 7 265T in the majority of recorded tests, while the Ultra 7 265T counters with decisive victories in specific computational workloads. This analysis breaks down the recorded database measurements to clarify where each processor excels and where it falls short.

Head-to-Head Benchmarks

The head-to-head data shows a dominant performance from the Intel Core Ultra 5 245, which claims victory in 15 of the 17 recorded benchmark comparisons. The Cinebench suite illustrates a consistent pattern: the Ultra 5 245 leads by 4.3% in both Cinebench R15, R20, and R23 multicore tests, with scores of 3318 versus 3180, 13828 versus 13254, and 32924 versus 31558 respectively. Single-core performance follows the same trend, with the Ultra 5 245 winning by 4.2% in Cinebench R15 (468 versus 449) and by 4.3% in both R20 (1952 versus 1871) and R23 (4648 versus 4455).

The Passmark suite reinforces this pattern across several integer-heavy and general workloads. The largest margin for the Ultra 5 245 comes in extended instructions, where it scores 33304 against 28609, a substantial 16.4% advantage. Prime number finding also favors the Ultra 5 245 by 13.4% (365 versus 322). Random string sorting shows a 10.7% lead for the Ultra 5 245 (49140 versus 44400), while data compression sees an 8.3% edge (400942 versus 370158). The Ultra 5 245 also wins the Passmark multithread test by 4.4% (38706 versus 37084) and the physics test by 7.4% (2569 versus 2391). Smaller wins include data encryption at 1.8% (30236 versus 29687) and single-thread performance at 1.3% (4394 versus 4338).

However, the Intel Core Ultra 7 265T secures two notable victories that highlight its different strengths. In floating-point math, the Ultra 7 265T scores 129817 against 120548, a 7.1% advantage. More impressively, in integer math, it posts 104943 versus 91187, a commanding 13.1% lead. These two wins demonstrate that the Ultra 7 265T is not simply a weaker counterpart; it possesses superior raw arithmetic throughput in specific categories despite losing the overall benchmark count.

Architecture Differences

Both processors share the same foundational architecture: Arrow Lake, built on a 3 nm process at TSMC with 17,800 million transistors on a 243 mm² die. They also share the same socket (Intel Socket 1851) and integrated graphics (Arc Xe-LPG Graphics 64EU). The core configuration, however, differs significantly. The Ultra 5 245 contains 14 cores and 14 threads, while the Ultra 7 265T scales up to 20 cores and 20 threads, a 43% increase in core count. Neither processor supports simultaneous multithreading, so thread counts equal core counts.

Clock speeds diverge sharply to compensate for the core disparity. The Ultra 5 245 has a base clock of 3.50 GHz and a boost clock of 5.10 GHz. The Ultra 7 265T operates at a much lower 1.50 GHz base clock but reaches a higher 5.30 GHz boost clock. This configuration suggests the Ultra 7 265T is designed for power efficiency at idle or low load, with the ability to burst to high frequencies when needed. The thermal design power (TDP) reflects this: the Ultra 5 245 draws 65 W, while the Ultra 7 265T is rated at only 35 W.

Cache hierarchies also differ. Both have 192 KB of L1 cache per core and 3 MB of L2 cache per core, but the shared L3 cache grows from 24 MB on the Ultra 5 245 to 30 MB on the Ultra 7 265T. Memory support is identical: DDR5, dual-channel, with a bandwidth of 102.4 GB/s. The Ultra 5 245 supports ECC memory, while the Ultra 7 265T does not. Both provide PCIe Gen 5 with 20 lanes from the CPU. The Ultra 5 245 carries part number SRVFE, while the Ultra 7 265T is SRQCS.

Where Each One Wins

The Intel Core Ultra 5 245 is the clear winner in general-purpose computing and single-threaded responsiveness. Its higher base clock (3.50 GHz versus 1.50 GHz) and consistent single-core victories across all Cinebench versions make it the stronger choice for everyday desktop tasks, application launches, and lightly threaded software. The 4.3% lead in Cinebench multicore tests also suggests it handles mainstream productivity workloads, such as office suites, web browsing, and light content creation, with greater efficiency. The 16.4% advantage in extended instructions and 13.4% lead in prime number finding indicate the Ultra 5 245 is better suited for cryptography, scientific calculations, and workloads that rely on specialized instruction sets.

The Intel Core Ultra 7 265T, despite losing the majority of benchmarks, wins decisively in integer and floating-point math. The 13.1% lead in integer math (104943 versus 91187) and 7.1% lead in floating-point math (129817 versus 120548) point to a processor that excels in heavy computational tasks such as video encoding, 3D rendering, financial modeling, and scientific simulations. The larger 30 MB L3 cache and 20-core configuration likely contribute to these wins, as the additional cores can be fed more data without hitting memory bottlenecks. The Ultra 7 265T is also the more power-efficient choice at 35 W TDP, making it attractive for compact or thermally constrained systems where lower heat output is prioritized.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 265T has 20 cores and 20 threads, while the Intel Core Ultra 5 245 has 14 cores and 14 threads.

Q: Does the Ultra 5 245 outperform the Ultra 7 265T in all Cinebench tests?

A: Yes, the Ultra 5 245 wins every Cinebench test, with a 4.3% lead in R15, R20, and R23 multicore tests, and a 4.2% to 4.3% lead in the corresponding single-core tests.

Q: What is the most significant benchmark win for the Ultra 7 265T?

A: The Ultra 7 265T wins Passmark integer math by 13.1% (104943 versus 91187), which is its largest margin of victory in any test.

Q: Which processor has a higher boost clock?

A: The Intel Core Ultra 7 265T has a boost clock of 5.30 GHz, compared to 5.10 GHz for the Ultra 5 245.

Q: Do both processors support ECC memory?

A: No, the Intel Core Ultra 5 245 supports ECC memory, but the Intel Core Ultra 7 265T does not.

Q: How much L3 cache does each processor have?

A: The Ultra 5 245 has 24 MB of shared L3 cache, while the Ultra 7 265T has 30 MB of shared L3 cache.

Specification Differences

The two processors differ in several key specification fields. The Ultra 5 245 has 14 cores and 14 threads, while the Ultra 7 265T has 20 cores and 20 threads. Base clock speeds are 3.50 GHz for the Ultra 5 245 and 1.50 GHz for the Ultra 7 265T. Boost clocks are 5.10 GHz and 5.30 GHz, respectively. TDP ratings are 65 W for the Ultra 5 245 and 35 W for the Ultra 7 265T. L3 cache is 24 MB on the Ultra 5 245 and 30 MB on the Ultra 7 265T. ECC memory support is present on the Ultra 5 245 but absent on the Ultra 7 265T. The part numbers are SRVFE for the Ultra 5 245 and SRQCS for the Ultra 7 265T. The launch MSRP for the Ultra 5 245 is $270, and for the Ultra 7 265T it is $384. All other specifications, including process node, foundry, die size, L1 and L2 cache per core, memory support, memory bus, memory bandwidth, PCIe lanes, integrated graphics, socket, and release date, are identical.