Intel Core Ultra 7 265F vs Intel Core Ultra 7 356H Comparison

Where Each One Wins

The benchmark data splits cleanly along form factor lines. The Intel Core Ultra 7 265F, a desktop part on Socket 1851, wins every single head-to-head comparison in the database. Across 17 recorded benchmarks, from Cinebench rendering tests to PassMark workload simulations, the 265F takes all 17. The Intel Core Ultra 7 356H, a mobile processor on BGA 2540, does not record a single victory in any measured test.

The 265F dominates in multi-threaded workloads. In Cinebench R23 multi-core, it scores 41980 against the 356H's 18395, a 128.2% delta. The desktop chip also leads in single-core performance. Cinebench R23 single-core shows 5926 versus 2040, a 190.5% gap. That pattern repeats across PassMark tests: integer math (138078 vs 83111, 66.1%), floating point math (173855 vs 103128, 68.6%), and data compression (507018 vs 336177, 50.8%).

The 356H does not fall behind by small margins. Its closest result is PassMark physics, where it scores 2895 against the 265F's 3172, a 9.6% deficit. Every other benchmark shows a double-digit gap, and several exceed 50%. The mobile chip's best relative showing comes in single-threaded PassMark, where 4072 trails 4750 by 16.7%. That is still a clear loss, but it demonstrates the 356H's architecture holds up better in lighter workloads than in sustained multi-core tasks.

The 265F's percentile ranking reinforces the split. It sits at the 93rd percentile of all CPUs in the database. The 356H ranks at the 87th percentile. Both are strong parts, but the desktop chip sits in a higher performance tier overall.

The Verdict

The data supports one clear conclusion: the Intel Core Ultra 7 265F is the faster processor in every measured category. Any workload that scales with core count, clock speed, or cache capacity will favor the desktop chip. The 265F delivers 20 cores and 20 threads against the 356H's 16 cores and 16 threads. Its boost clock reaches 5.30 GHz versus 4.70 GHz. Its L3 cache totals 30 MB shared against 18 MB shared. These are not subtle differences.

The 356H is not without purpose. It is a mobile chip with a 25 W TDP, designed for systems where power draw and thermals matter more than raw throughput. The 265F carries a 65 W TDP and requires a desktop motherboard with Socket 1851. The mobile part also integrates Intel Xe3 Graphics, while the desktop chip has no integrated graphics at all. For a laptop or compact mobile workstation, the 356H is the only realistic choice between the two. For any desktop build where performance is the priority, the 265F wins outright.

The average benchmark score tells the same story. The 265F averages 64438 across all tests. The 356H averages 41215. That is a 56.3% advantage for the desktop chip, consistent with the head-to-head deltas. The nearest rivals in the database confirm both parts are competitive within their segments. The 265F sits within 0.6% of the Intel Core i9-13900KS and 0.4% of the AMD EPYC 7343. The 356H matches the AMD Ryzen AI 5 PRO 440 exactly at 0% delta and trails the AMD Ryzen 9 5900X by just 0.4%.

Head-to-Head Benchmarks

The largest single victory for the 265F comes in Cinebench R23 single-core. The desktop chip scores 5926 against the mobile chip's 2040, a 190.5% advantage. This result is striking because single-core performance typically depends less on core counts and more on architecture, clock speed, and cache latency. The 265F's 5.30 GHz boost clock and 30 MB L3 cache give it a decisive edge over the 356H's 4.70 GHz and 18 MB L3.

Cinebench R23 multi-core shows a 128.2% delta, with 41980 against 18395. The 265F's four extra cores and twenty threads, combined with its higher boost clock, produce a massive throughput advantage. The 356H's 16 cores at 1.90 GHz base simply cannot keep pace.

In Cinebench R20, the deltas are identical at 45.1% for both single-core and multi-core. The 265F posts 2488 and 17631, while the 356H posts 1715 and 12153. Cinebench R15 shows a different pattern: 97% in single-core (597 vs 303) but only 38.5% in multi-core (4231 vs 3055). The R15 multi-core test appears to scale less aggressively with core count, narrowing the gap relative to R20 and R23.

PassMark results show consistent but varied deltas. The smallest is physics at 9.6% (3172 vs 2895). The largest is floating point math at 68.6% (173855 vs 103128). Integer math trails at 66.1% (138078 vs 83111). Data compression shows 50.8% (507018 vs 336177), and data encryption shows 49.8% (39468 vs 26345). Extended instructions deliver a 40.6% delta (39235 vs 27898). Random string sorting sits at 52.3% (62439 vs 40990). Prime number finding shows 27.2% (416 vs 327). PassMark multi-thread delivers 45.4% (49410 vs 33978). Single-thread PassMark shows 16.7% (4750 vs 4072).

The pattern across all PassMark tests is the same: the 265F wins, but the margin varies by workload. Physics and single-thread tests show the smallest gaps, suggesting the 356H's architecture is relatively competitive in latency-sensitive or lightly threaded tasks. Math-heavy and data-intensive tests show the largest gaps, where core count and cache size dominate.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 7 265F has 20 cores and 20 threads. The Intel Core Ultra 7 356H has 16 cores and 16 threads.

Q: How much faster is the 265F in multi-core rendering?

A: In Cinebench R23 multi-core, the 265F scores 41980 against the 356H's 18395, a 128.2% advantage. In Cinebench R20 multi-core, the 265F leads 17631 to 12153, a 45.1% delta.

Q: Does the 356H win any benchmark?

A: No. The 265F wins all 17 recorded head-to-head benchmarks. The 356H's closest result is PassMark physics, where it trails by 9.6%.

Q: What are the power requirements for each chip?

A: The 265F has a 65 W TDP and uses Intel Socket 1851. The 356H has a 25 W TDP and uses Intel BGA 2540.

Q: Do either of these processors include integrated graphics?

A: The 356H includes Intel Xe3 Graphics. The 265F has no integrated graphics (listed as N/A).

Q: How do these chips compare to their nearest rivals?

A: The 265F is 0.3% behind the Intel Core Ultra 7 265, 0.4% ahead of the AMD EPYC 7343, 0.6% behind the AMD EPYC 4464P, and 0.6% ahead of the Intel Core i9-13900KS. The 356H matches the AMD Ryzen AI 5 PRO 440 at 0%, trails the Intel Core Ultra 7 366H by 0.1%, trails the AMD Ryzen 9 5900X by 0.4%, and leads the Intel Core Ultra X7 358H by 0.6%.

Architecture Differences

The two processors come from different Intel architectures and foundries. The 265F is built on Arrow Lake, specifically Arrow Lake-S, and belongs to the Core Ultra Series 2. Its process node is 3 nm, fabricated by TSMC. The 356H uses Panther Lake, specifically Panther Lake-H, and belongs to the Core Ultra Series 3. Its process node is also 3 nm, but it is fabricated by Intel. Both chips use the same L1 cache configuration at 192 KB per core, and neither supports ECC memory.

The L2 cache differs. The 265F has 3 MB per core, while the 356H has 2.5 MB per core. The L3 cache also differs significantly: the 265F has 30 MB shared, the 356H has 18 MB shared. Transistor count and die size are recorded for the 265F at 17,800 million transistors and 243 mm². The database lists no transistor count or die size for the 356H.

Memory support differs in scope. The 265F supports DDR5 only, with dual-channel memory and a recorded bandwidth of 102.4 GB/s. The 356H supports both DDR5 and LPDDR5X, also dual-channel, with a higher recorded bandwidth of 115.2 GB/s. Despite having less cache and fewer cores, the mobile chip's memory controller handles a wider range of memory types and delivers more bandwidth.

PCIe connectivity also differs. The 265F provides Gen 5 with 20 lanes (CPU only). The 356H provides Gen 5 with 12 lanes (CPU only). The desktop chip offers more expansion lanes for GPUs, NVMe drives, and other peripherals. The integrated graphics situation is a major architectural split: the 356H includes Intel Xe3 Graphics, while the 265F has none. This makes the 356H a complete platform for mobile systems without a discrete GPU, while the 265F requires a separate graphics card.

Specification Differences

The core and thread counts differ: 20/20 for the 265F versus 16/16 for the 356H. Base clocks are 2.40 GHz for the 265F and 1.90 GHz for the 356H. Boost clocks are 5.30 GHz and 4.70 GHz respectively. The TDP ratings diverge sharply: 65 W for the desktop chip, 25 W for the mobile chip.

Sockets are incompatible: Intel Socket 1851 for the 265F, Intel BGA 2540 for the 356H. The desktop part is a socketed, replaceable CPU. The mobile part is ball-grid array, typically soldered to the motherboard. Neither chip has an unlocked multiplier.

The 265F launched with a launch MSRP of $379. The 356H has no recorded launch MSRP in the database. Release dates differ: the 265F was released on 2025-01-06, while the 356H carries a release date of 2026-01-04. Both are listed as Active in production status.

The part numbers differ: SRQCV for the 265F, SA4RGQ9EU for the 356H. The 265F targets the desktop market segment, while the 356H targets mobile. The 265F measures in at the 93rd percentile of all CPUs, the 356H at the 87th. The average benchmark scores are 64438 and 41215 respectively. Every recorded specification where the two differ favors the desktop part except memory bandwidth, where the mobile chip's 115.2 GB/s exceeds the desktop chip's 102.4 GB/s, and memory type support, where the 356H accepts both DDR5 and LPDDR5X.