Intel Core 5 221TE vs Intel Core Ultra 9 285T Comparison

Architecture Differences

The Intel Core 5 221TE and Intel Core Ultra 9 285T represent two distinct design approaches from Intel. The Core 5 221TE uses the Bartlett Lake codename on the Intel Socket 1700 platform, built on Intel's 10 nm process with a die size of 215 mm². The Core Ultra 9 285T belongs to the Core Ultra Series 2, uses the Arrow Lake architecture with the Arrow Lake-S codename on Intel Socket 1851, and is manufactured on TSMC's 3 nm process with a die size of 243 mm² and 17,800 million transistors.

The core configurations differ substantially. The Core 5 221TE offers 10 cores and 16 threads, indicating a hybrid arrangement with performance and efficiency cores. The Core Ultra 9 285T provides 24 cores and 24 threads, suggesting a design where efficiency cores do not contribute additional threads. Base clocks are 1.80 GHz for the Core 5 and 1.40 GHz for the Ultra 9, but boost clocks favor the Ultra 9 at 5.40 GHz versus 5.00 GHz. Thermal design power is lower on the Ultra 9 at 35 W compared to 45 W for the Core 5.

Cache hierarchies show the Ultra 9's advantage. The Core 5 has 80 KB L1 per core, 1.25 MB L2 per core, and 24 MB shared L3. The Ultra 9 doubles L1 to 192 KB per core, increases L2 to 3 MB per core, and provides 36 MB shared L3. Memory support also diverges: the Core 5 supports DDR4 and DDR5 with dual-channel bus and 76.8 GB/s bandwidth, while the Ultra 9 supports only DDR5 with dual-channel bus and 102.4 GB/s bandwidth. Both support ECC memory.

PCIe connectivity differs in lane count, with the Core 5 offering Gen 5 with 16 CPU lanes and the Ultra 9 offering Gen 5 with 20 CPU lanes. Integrated graphics are UHD Graphics 730 for the Core 5 and Arc Xe-LPG Graphics 64EU for the Ultra 9. The Core 5 uses part number SRVQS, while the Ultra 9 uses SRQD3. Neither processor has an unlocked multiplier. Release dates are close, with the Ultra 9 on January 6, 2025, and the Core 5 on January 12, 2025. The launch MSRP for the Core 5 is $232, and the launch MSRP for the Ultra 9 is $549.

Where Each One Wins

The benchmark data shows a complete sweep by the Intel Core Ultra 9 285T across all 17 head-to-head tests. The Core 5 221TE records zero wins. This outcome is consistent with the processors' positioning: the Ultra 9 is a high-core-count desktop part with 24 cores, while the Core 5 is a lower-core-count part with 10 cores.

For single-threaded workloads, the Ultra 9 wins by a wide margin. The Cinebench R23 single-core score is 4739 versus 1596, a 66.3% gap. PassMark single-thread score is 4576 versus 1734, a 62.1% gap. This advantage comes from the higher boost clock of 5.40 GHz and the newer Arrow Lake architecture on the 3 nm node.

For multi-threaded workloads, the Ultra 9's core count advantage dominates. Cinebench R23 multi-core is 33573 versus 11305, also a 66.3% gap. PassMark multi-thread is 39931 versus 13301, a 66.7% gap. The 24-core configuration provides roughly 2.4 times the core count of the 10-core part, which translates directly into multi-threaded performance.

Specialized workloads show the largest deltas. PassMark find prime numbers records 345 versus 59, an 82.9% gap, the largest in the dataset. Floating-point math shows 137923 versus 31661, a 77% gap. Data encryption shows 32061 versus 8963, a 72% gap. These indicate the Ultra 9's advantage extends beyond raw core count into instruction efficiency and arithmetic throughput.

The Core 5 221TE does offer certain platform advantages. It supports DDR4 memory in addition to DDR5, which may allow for lower-cost system builds. Its 45 W TDP is higher than the Ultra 9's 35 W, but the Core 5 uses the Intel Socket 1700 platform, which has broader motherboard availability. For users with existing LGA1700 infrastructure, the Core 5 could be a drop-in consideration, though the benchmark data does not quantify platform costs.

Head-to-Head Benchmarks

All 17 recorded head-to-head benchmarks favor the Intel Core Ultra 9 285T. The Cinebench suite shows consistent deltas around 66%. R15 multi-core is 3384 versus 1139, a 66.3% delta. R15 single-core is 477 versus 160, a 66.5% delta. R20 multi-core is 14100 versus 4748, a 66.3% delta. R20 single-core is 1990 versus 670, a 66.3% delta. R23 multi-core is 33573 versus 11305, a 66.3% delta. R23 single-core is 4739 versus 1596, a 66.3% delta.

The PassMark suite shows more variance in deltas. Data compression is 384140 versus 156682, a 59.2% delta. Data encryption is 32061 versus 8963, a 72% delta. Extended instructions are 27477 versus 9655, a 64.9% delta. Find prime numbers is 345 versus 59, an 82.9% delta. Floating-point math is 137923 versus 31661, a 77% delta. Integer math is 132433 versus 42303, a 68.1% delta. Multi-thread is 39931 versus 13301, a 66.7% delta. Physics is 2842 versus 977, a 65.6% delta. Random string sorting is 47695 versus 16929, a 64.5% delta. Single-thread is 4576 versus 1734, a 62.1% delta.

The largest relative advantage appears in prime number finding, where the Ultra 9 outperforms by 82.9%. This test often stresses integer division and branch prediction, indicating the Arrow Lake architecture excels in that domain. Floating-point math shows a 77% gap, confirming strong SIMD and FPU throughput. Data encryption at 72% reflects AES-NI and related instruction efficiency.

The smallest deltas are still substantial. Data compression at 59.2% and single-thread at 62.1% are the closest margins, but neither approaches a competitive threshold. The average benchmark score for the Ultra 9 is 51310, placing it at the 91st percentile of all CPUs. The Core 5 averages 17860, placing it at the 71st percentile. The average score delta is 33450 in absolute terms.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 9 285T has 24 cores and 24 threads. The Intel Core 5 221TE has 10 cores and 16 threads.

Q: What is the single-core performance difference?

A: In Cinebench R23 single-core, the Ultra 9 scores 4739 versus 1596 for the Core 5, a 66.3% advantage. PassMark single-thread shows 4576 versus 1734, a 62.1% advantage.

Q: Does the Core 5 221TE support DDR4 memory?

A: Yes, the Core 5 supports both DDR4 and DDR5 with dual-channel memory bus and 76.8 GB/s bandwidth. The Ultra 9 supports only DDR5 with 102.4 GB/s bandwidth.

Q: What is the TDP difference?

A: The Core 5 221TE has a 45 W TDP, while the Ultra 9 285T has a 35 W TDP. Despite the higher core count, the Ultra 9 consumes less thermal design power.

Q: Which processor has a higher boost clock?

A: The Ultra 9 285T boosts to 5.40 GHz, while the Core 5 221TE boosts to 5.00 GHz. The base clocks are 1.40 GHz for the Ultra 9 and 1.80 GHz for the Core 5.

Q: How do the average benchmark scores compare?

A: The Ultra 9 has an average benchmark score of 51310, placing at the 91st percentile. The Core 5 has an average score of 17860, placing at the 71st percentile.

The Verdict

The recorded data leaves no ambiguity: the Intel Core Ultra 9 285T outperforms the Intel Core 5 221TE in every measured benchmark. The 17-to-0 win count, combined with the average score of 51310 versus 17860, establishes the Ultra 9 as the dominant processor in this comparison.

Users who require maximum multi-threaded throughput should select the Ultra 9. Its 24 cores deliver 33573 in Cinebench R23 multi-core, which is 66.3% ahead of the Core 5's 11305. The Ultra 9 also leads in single-threaded performance, with a 5.40 GHz boost clock enabling 4739 in Cinebench R23 single-core. The 3 nm process node and TSMC fabrication contribute to a 35 W TDP that is lower than the Core 5's 45 W, making the Ultra 9 a compelling choice for thermally constrained desktop systems.

The Core 5 221TE retains relevance for specific platform requirements. Its support for DDR4 and DDR5 memory on the Intel Socket 1700 platform, combined with a $232 launch MSRP, positions it as the more accessible option for existing LGA1700 users. The 10-core configuration with 16 threads still provides adequate performance for general desktop tasks, as evidenced by its 71st percentile ranking. However, the data shows no benchmark scenario where the Core 5 wins against the Ultra 9.

The nearest rivals for each processor confirm their market positions. The Core 5 sits near the AMD Ryzen 5 3600XT with a 0.2% average score delta, and the Intel Core 5 120U with a 0.2% delta. The Ultra 9 sits near the Intel Core i9-14900T with a 0.6% delta, and the Intel Core i9-13900F with a 0.8% delta. These groupings indicate the Core 5 competes in the mid-range segment, while the Ultra 9 competes at the high end.

For workloads involving prime number calculations, floating-point math, or data encryption, the Ultra 9's advantage is particularly pronounced, with deltas ranging from 72% to 82.9%. For data compression and single-threaded tasks, the advantage narrows to around 59% to 62%, but still represents a decisive margin. The database records no scenario where the Core 5 closes the gap to within a competitive range. The verdict from the measurements is clear: the Ultra 9 is the superior processor for all tested workloads, and the Core 5 serves as a lower-cost alternative with legacy memory support.