Intel Core 5 315 vs Intel Core Ultra 7 265K Comparison

Head-to-Head Benchmarks

The benchmark comparison between the Intel Core 5 315 and the Intel Core Ultra 7 265K shows a decisive sweep: the Core Ultra 7 265K wins all 17 recorded head-to-head tests, with the Core 5 315 recording zero wins. The magnitude of the advantage varies considerably by workload, ranging from a modest single-digit gap in one test to margins approaching 80% in others.

The largest single disparity appears in PassMark data compression, where the Core Ultra 7 265K scores 665554 against 146143 for the Core 5 315, a delta of 78%. Random string sorting shows the same 78% gap, with scores of 79752 and 17551 respectively. Integer math follows closely at 77.9% (143242 versus 31690), while floating-point math shows a 77.6% difference (189629 versus 42441). Data encryption trails at 77% (48246 versus 11119), and the find prime numbers test records a 77.2% gap (491 versus 112).

Cinebench multicore results are consistent across all three versions. In Cinebench R15 multicore, the Core Ultra 7 265K scores 5020 against 1308 for the Core 5 315, a 73.9% delta. Cinebench R20 multicore shows the same 73.9% gap (20918 versus 5452), and Cinebench R23 multicore narrows slightly to 63.8% (35850 versus 12981). PassMark multithread also lands at 73.9% (58594 versus 15272), while PassMark physics shows a 68.8% delta (3731 versus 1163).

Single-threaded results present a different picture. The Cinebench R23 single-core test shows the Core Ultra 7 265K ahead by only 9.3% (2020 versus 1832), the smallest margin in the entire comparison. PassMark single-thread and single-threaded tests both record an 18.4% delta (4928 versus 4021). Cinebench R15 and R20 single-core show larger gaps of 74% (708 versus 184, and 2953 versus 769 respectively).

The average benchmark score reflects this overall dominance. The Core Ultra 7 265K averages 70879 across all recorded tests, placing it in the 94th percentile of all CPUs in the database. The Core 5 315 averages 18188, which corresponds to the 72nd percentile. The Core Ultra 7 265K sits among rivals such as the Intel Xeon 6511P (71051, delta 0.2% behind), the Intel Xeon Platinum 8270 (71370, delta 0.7% behind), the Intel Core i7-14700KF (70163, delta 1% ahead), and the AMD Ryzen 7 9700F (69996, delta 1.3% ahead). The Core 5 315 sits near the AMD EPYC 9274F (18189, delta 0%), the Intel Core i7-9700 (18180, delta 0%), the Intel Core i7-1365U (18177, delta 0.1% behind), and the AMD Ryzen 7 5700U (18176, delta 0.1% behind).

The Verdict

The data positions these two processors at opposite ends of the performance spectrum. The Intel Core Ultra 7 265K, with an average benchmark score of 70879 and a 94th percentile ranking, is clearly a high-throughput desktop part. Its closest rivals in the database are server-class Xeon processors and high-end Core i7 and Ryzen 7 desktop chips, all within a 1.3% band of its average score. Any application that scales with core count, from rendering to data compression, will see the Core Ultra 7 265K finish ahead by margins of 64% to 78% in the recorded tests.

The Intel Core 5 315, by contrast, averages 18188 and ranks in the 72nd percentile. Its nearest rivals include the AMD EPYC 9274F, the Intel Core i7-9700, the Intel Core i7-1365U, and the AMD Ryzen 7 5700U, all within a 0.1% band. This places it in a completely different performance class, closer to older desktop and mid-range mobile parts than to the Core Ultra 7 265K.

The single-core comparison is the only area where the Core 5 315 approaches competitiveness. In Cinebench R23 single-core, the Core Ultra 7 265K leads by just 9.3%, and in PassMark single-thread tests the gap is 18.4%. These are meaningful differences, but they are far smaller than the multicore margins. For workloads that are purely single-threaded, the Core 5 315 does not fall as far behind, though it still loses every recorded test.

The verdict from the data is straightforward. The Core Ultra 7 265K is the processor for compute-heavy, multithreaded workloads. The Core 5 315, with its 6 cores and 6 threads, is a low-power mobile part that delivers roughly a quarter to a third of the multicore performance of the Core Ultra 7 265K, depending on the test. The Core 5 315 also records lower single-thread scores, but the gap there is less severe. The 94th percentile ranking of the Core Ultra 7 265K versus the 72nd percentile of the Core 5 315 summarizes the overall positioning.

FAQ

Q: Which processor wins in every recorded head-to-head benchmark?

A: The Intel Core Ultra 7 265K wins all 17 head-to-head tests. The Intel Core 5 315 records zero wins in the comparison.

Q: What is the smallest performance gap between the two processors?

A: The smallest gap is in Cinebench R23 single-core, where the Core Ultra 7 265K scores 2020 against 1832 for the Core 5 315, a delta of 9.3%.

Q: What is the largest performance gap between the two processors?

A: The largest gaps are in PassMark data compression and PassMark random string sorting, both showing a 78% delta. The Core Ultra 7 265K scores 665554 and 79752 respectively, while the Core 5 315 scores 146143 and 17551.

Q: How do the two processors rank among all CPUs in the database?

A: The Core Ultra 7 265K sits in the 94th percentile, while the Core 5 315 sits in the 72nd percentile.

Q: What are the average benchmark scores for each processor?

A: The Core Ultra 7 265K averages 70879, and the Core 5 315 averages 18188.

Q: How do the single-thread scores compare?

A: In PassMark single-thread, the Core Ultra 7 265K scores 4928 versus 4021 for the Core 5 315, an 18.4% delta. In Cinebench R23 single-core, the scores are 2020 versus 1832, a 9.3% delta.

Specification Differences

The two processors differ across nearly every recorded specification field. The Core Ultra 7 265K has 20 cores and 20 threads, while the Core 5 315 has 6 cores and 6 threads. Base clock rates differ substantially: the Core Ultra 7 265K runs at 3.90 GHz, the Core 5 315 at 1.50 GHz. Boost clocks also differ, with the Core Ultra 7 265K reaching 5.50 GHz and the Core 5 315 reaching 4.40 GHz.

Thermal design power shows a wide split: the Core Ultra 7 265K is rated at 125 W, the Core 5 315 at 15 W. The socket types are different as well: the Core Ultra 7 265K uses Intel Socket 1851, while the Core 5 315 uses Intel BGA 1516. The Core Ultra 7 265K is a desktop part with an unlocked multiplier, while the Core 5 315 is a mobile part with a locked multiplier.

Memory specifications differ on several axes. The Core Ultra 7 265K supports DDR5 with a dual-channel memory bus and 102.4 GB/s bandwidth. The Core 5 315 supports DDR5 and LPDDR5X with a single-channel bus and 59.7 GB/s bandwidth. ECC memory is supported on the Core Ultra 7 265K but not on the Core 5 315.

PCIe connectivity differs as well. The Core Ultra 7 265K provides Gen 5 with 20 lanes (CPU only), while the Core 5 315 provides Gen 4 with 6 lanes (CPU only). Integrated graphics also differ: the Core Ultra 7 265K uses Arc Xe-LPG Graphics with 64 EU, while the Core 5 315 uses Intel Xe3 Graphics with 2 Xe.

The Core Ultra 7 265K has a transistor count of 17,800 million and a die size of 243 mm². The Core 5 315 has no recorded transistor count or die size in the database. The Core Ultra 7 265K was released on 2024-10-23, while the Core 5 315 has a release date of 2026-04-15. The launch MSRP for the Core Ultra 7 265K is $394, and the launch MSRP for the Core 5 315 is $340.

Architecture Differences

The two processors come from different architectural lineages. The Core Ultra 7 265K is part of the Core Ultra Series 2, built on the Arrow Lake architecture with the codename Arrow Lake-S. The Core 5 315 belongs to the Core 5 generation (Wildcat Lake), with the codename Wildcat Lake and no specific architecture field recorded.

Both are manufactured on a 3 nm process node, but the foundries differ. The Core Ultra 7 265K is produced by TSMC, while the Core 5 315 is produced by Intel.

Cache hierarchies show fundamental differences. The Core Ultra 7 265K has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 30 MB of shared L3 cache. The Core 5 315 has 192 KB of total L1 cache, 2.5 MB of L2 cache, and 6 MB of shared L3 cache. The per-core versus total designation matters: the Core Ultra 7 265K scales its cache with 20 cores, while the Core 5 315 has fixed total amounts.

The Core Ultra 7 265K uses the Arrow Lake architecture, which represents a desktop-oriented design with a high core count, dual-channel memory, and Gen 5 PCIe. The Core 5 315 uses Wildcat Lake, a mobile-oriented design with fewer cores, single-channel memory, and Gen 4 PCIe. The integrated graphics differ accordingly, with the Core Ultra 7 265K carrying a 64 EU Arc Xe-LPG solution and the Core 5 315 carrying a 2 Xe Xe3 solution.

The production status for both is Active, but the market segments differ: the Core Ultra 7 265K is a Desktop part, and the Core 5 315 is a Mobile part. The part numbers also differ, with the Core Ultra 7 265K listed as SRQCW and the Core 5 315 as SAEFC.