Intel Core 5 221TE vs Intel Core Ultra 7 265KF Comparison

The Verdict

The benchmark data delivers a decisive outcome: the Intel Core Ultra 7 265KF wins all 17 recorded head-to-head comparisons against the Intel Core 5 221TE. The Core Ultra 7 265KF sits at the 94th percentile of all CPUs in the database, while the Core 5 221TE ranks at the 71st percentile. The average benchmark score for the Core Ultra 7 265KF is 71,910, compared to 17,860 for the Core 5 221TE, a gap of roughly 4x in aggregate performance.

The Core 5 221TE belongs in systems where its 45 W TDP, integrated UHD Graphics 730, and ECC memory support matter more than raw throughput. The Core Ultra 7 265KF, with its 125 W TDP, 20 cores, and unlocked multiplier, is the clear choice for workloads that scale with thread count and single-core speed. The data shows no benchmark category where the Core 5 221TE leads, so any selection between these two hinges on platform requirements, power constraints, and feature needs rather than performance expectations.

FAQ

Q: Which CPU has the higher single-core performance?

A: The Intel Core Ultra 7 265KF leads in every single-core test. Cinebench R23 single-core scores 7,021 for the Core Ultra 7 265KF versus 1,596 for the Core 5 221TE, a delta of -77.3%. PassMark single-thread scores 4,928 versus 1,734, a delta of -64.8%.

Q: How do the two compare in multi-core workloads?

A: The Core Ultra 7 265KF dominates multi-core tests. Cinebench R23 multi-core scores 49,736 versus 11,305, a -77.3% delta. PassMark multi-thread scores 58,518 versus 13,301, also a -77.3% delta. The Core Ultra 7 265KF delivers roughly 4.4x the multi-threaded score in Cinebench R23.

Q: Do both CPUs support the same memory types?

A: No. The Core 5 221TE supports DDR4 and DDR5, while the Core Ultra 7 265KF supports DDR5 only. Memory bandwidth also differs: 76.8 GB/s for the Core 5 221TE versus 102.4 GB/s for the Core Ultra 7 265KF.

Q: Which CPU includes integrated graphics?

A: The Core 5 221TE includes UHD Graphics 730. The Core Ultra 7 265KF has no integrated graphics, listed as N/A. A discrete GPU is mandatory for the Core Ultra 7 265KF.

Q: What is the difference in power draw?

A: The Core 5 221TE has a 45 W TDP, while the Core Ultra 7 265KF has a 125 W TDP. The Core 5 221TE draws substantially less power, which suits compact or thermally constrained builds.

Q: Are both CPUs unlocked for overclocking?

A: No. The Core Ultra 7 265KF has an unlocked multiplier. The Core 5 221TE does not.

Architecture Differences

The two processors come from different Intel generations and manufacturing approaches. The Core 5 221TE uses the Bartlett Lake codename and is built on a 10 nm process at Intel's own foundry. The Core Ultra 7 265KF uses the Arrow Lake-S codename, belongs to the Core Ultra Series 2 family, and is fabricated on a 3 nm process by TSMC. The Core Ultra 7 265KF integrates 17,800 million transistors on a 243 mm² die, while the Core 5 221TE has a 215 mm² die with no transistor count listed in the database.

Core topology differs significantly. The Core 5 221TE provides 10 cores and 16 threads, indicating the use of hyper-threading on some cores. The Core Ultra 7 265KF provides 20 cores and 20 threads, meaning no hyper-threading. Cache hierarchies also diverge: the Core 5 221TE has 80 KB of L1 per core, 1.25 MB of L2 per core, and 24 MB of shared L3. The Core Ultra 7 265KF has 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3. Every cache level is larger on the Core Ultra 7 265KF.

Platform support marks a clear generational split. The Core 5 221TE uses Intel Socket 1700, supports both DDR4 and DDR5, includes UHD Graphics 730, and offers ECC memory support. The Core Ultra 7 265KF uses Intel Socket 1851, supports only DDR5, has no integrated graphics, and lacks ECC memory support. PCIe connectivity also differs: the Core 5 221TE provides Gen 5 with 16 CPU lanes, while the Core Ultra 7 265KF provides Gen 5 with 20 CPU lanes.

The Core 5 221TE launched on 2025-01-12 with a launch MSRP of $232. The Core Ultra 7 265KF launched earlier on 2024-10-23 with a launch MSRP of $379. Both are active production parts in the desktop market segment.

Specification Differences

Clock speeds favor the Core Ultra 7 265KF. The Core 5 221TE has a 1.80 GHz base clock and a 5.00 GHz boost clock. The Core Ultra 7 265KF has a 3.90 GHz base clock and a 5.50 GHz boost clock. The Core Ultra 7 265KF runs 2.10 GHz higher at base and 0.50 GHz higher at boost.

Core and thread counts differ as noted: 10 cores/16 threads versus 20 cores/20 threads. TDP is 45 W versus 125 W. Socket types are incompatible: Socket 1700 versus Socket 1851. Memory support narrows on the newer part, with DDR5 only versus DDR4/DDR5. Memory bandwidth rises from 76.8 GB/s to 102.4 GB/s. ECC memory is supported on the Core 5 221TE but not on the Core Ultra 7 265KF. Integrated graphics are present only on the Core 5 221TE. The multiplier is unlocked only on the Core Ultra 7 265KF.

Process node and foundry differ: 10 nm Intel versus 3 nm TSMC. Die size is 215 mm² versus 243 mm². Part numbers are SRVQS for the Core 5 221TE and SRQCU for the Core Ultra 7 265KF.

Head-to-Head Benchmarks

The Core Ultra 7 265KF wins every recorded comparison. The largest margin appears in PassMark find prime numbers, where the Core Ultra 7 265KF scores 486 versus 59, a delta of -87.9%. The smallest margin is in PassMark single-thread, where scores are 4,928 versus 1,734, a delta of -64.8%.

Cinebench results show consistent spacing. In Cinebench R15 multi-core, the Core Ultra 7 265KF scores 5,013 versus 1,139, a -77.3% delta. Single-core R15 scores 707 versus 160, also -77.4%. R20 multi-core scores 20,889 versus 4,748, a -77.3% delta. R20 single-core scores 2,948 versus 670, a -77.3% delta. R23 multi-core scores 49,736 versus 11,305, a -77.3% delta. R23 single-core scores 7,021 versus 1,596, a -77.3% delta. The consistency of the -77.3% delta across R15, R20, and R23 multi-core indicates a proportional scaling advantage rather than a workload-specific quirk.

PassMark tests reveal varying margins. Data compression scores 666,589 versus 156,682, a -76.5% delta. Data encryption scores 48,198 versus 8,963, a -81.4% delta. Extended instructions score 54,513 versus 9,655, a -82.3% delta. Floating point math scores 189,431 versus 31,661, a -83.3% delta. Integer math scores 143,351 versus 42,303, a -70.5% delta. Physics scores 3,633 versus 977, a -73.1% delta. Random string sorting scores 79,735 versus 16,929, a -78.8% delta. Multi-thread scores 58,518 versus 13,301, a -77.3% delta.

The Core Ultra 7 265KF also records Geekbench results in its own benchmark list, with multi-core at 22,913 and single-core at 2,759. The Core 5 221TE has no Geekbench entries in the database, so no direct head-to-head is available for that suite.

Where Each One Wins

The Core Ultra 7 265KF wins in every performance category measured. Multi-threaded rendering, encryption, compression, physics simulation, and integer math all favor the 20-core part by wide margins. The smallest relative advantage is in single-threaded PassMark at -64.8%, still a commanding lead. Users running Cinebench-class rendering workloads, data compression pipelines, or encryption-heavy processes should expect roughly 3 to 5 times the throughput from the Core Ultra 7 265KF.

The Core 5 221TE does not win any benchmark, but its specification sheet defines its role. The 45 W TDP makes it suitable for power-limited desktop builds. The integrated UHD Graphics 730 removes the need for a discrete GPU in basic display scenarios. DDR4 support allows reuse of existing memory, and ECC memory support suits error-sensitive environments. The Core Ultra 7 265KF cannot serve any of those roles because it lacks integrated graphics, lacks ECC support, and requires DDR5.

The data indicates two distinct market positions. The Core Ultra 7 265KF is a high-throughput processor for multi-threaded desktop workloads, sitting at the 94th percentile with an average score of 71,910. The Core 5 221TE is a lower-power desktop part at the 71st percentile with an average score of 17,860, offering platform flexibility through DDR4, ECC, and integrated graphics. The nearest rivals in the database reinforce this split: the Core Ultra 7 265KF competes with AMD Ryzen 7 8840HX (delta 0.2%) and Xeon-class parts such as the Intel Xeon 6517P (delta -0.6%), while the Core 5 221TE sits near the AMD Ryzen 5 3600XT (delta -0.2%) and Intel Core 5 120U (delta -0.2%).