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

The Intel Core 5 221E and Intel Core Ultra 9 285T represent two distinct approaches within Intel’s desktop lineup, separated by architecture, process node, and intended workload focus. The recorded data shows a complete sweep in favor of the Core Ultra 9 285T across all 17 head-to-head benchmark comparisons, with the Core 5 221E recording zero wins. The average benchmark score for the Core Ultra 9 285T is 51,310, placing it in the 91st percentile of all CPUs, while the Core 5 221E averages 40,144, sitting in the 87th percentile. The performance gap is consistent, though its magnitude varies significantly by workload type, ranging from a narrow 9.4% lead in single-threaded tests to a substantial 49.9% advantage in prime number calculations.

The Verdict

The benchmark database presents a clear hierarchy: the Intel Core Ultra 9 285T outperforms the Intel Core 5 221E in every recorded test. For users prioritizing maximum throughput in multi-threaded applications, the Core Ultra 9 285T delivers Cinebench R23 multi-core scores of 33,573 compared to 25,933 for the Core 5 221E, a 22.8% advantage. The Core Ultra 9 285T also leads in data encryption by 40.1%, floating-point math by 42.7%, and extended instructions by 33.7%, making it the superior choice for scientific computing, encryption workloads, and complex mathematical operations.

The Core 5 221E, while trailing in all metrics, still occupies the 87th percentile of all CPUs with an average score of 40,144. Its nearest rival, the AMD Ryzen 7 7700, scores 40,081, a mere 0.2% difference, and the AMD Ryzen AI 9 365 scores 40,048, also 0.2% higher. This places the Core 5 221E in a tightly contested mid-range segment where its 14 cores and 20 threads provide competent multi-threaded performance. The Core Ultra 9 285T, by contrast, sits alongside the Intel Core i9-14900T with a 0.6% delta, and the Intel Core i9-13900F with a -0.8% delta, indicating it competes at a higher performance tier.

Systems requiring the lowest thermal footprint will find the Core Ultra 9 285T compelling despite its higher core count, as its 35W TDP is substantially lower than the 65W TDP of the Core 5 221E. The data shows the Core Ultra 9 285T achieves its performance leadership while drawing less power, which suggests greater efficiency per watt. For users on a constrained platform budget, the Core 5 221E offers a functional baseline, but the benchmark results indicate no workload category where it surpasses the Core Ultra 9 285T.

Architecture Differences

The two processors diverge fundamentally in their underlying design. The Intel Core 5 221E uses the Bartlett Lake codename on a 10 nm process node built by Intel, featuring a die size of 257 mm². The Intel Core Ultra 9 285T adopts the Arrow Lake architecture on a 3 nm process node fabricated by TSMC, with a die size of 243 mm² and 17,800 million transistors. The smaller process node and die size for the Core Ultra 9 285T correlate with its lower 35W TDP and higher performance ceiling.

Core configuration differs markedly. The Core 5 221E provides 14 cores and 20 threads, indicating a hybrid arrangement with performance and efficiency cores. The Core Ultra 9 285T provides 24 cores and 24 threads, which implies a design without hyper-threading on all cores, prioritizing physical core count over logical thread count. Cache hierarchies reflect this disparity: the Core 5 221E offers 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 24 MB of shared L3 cache. The Core Ultra 9 285T offers 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 36 MB of shared L3 cache, providing larger per-core resources and 50% more shared L3 capacity.

Memory support also separates the two. The Core 5 221E supports both DDR4 and DDR5 memory across a dual-channel bus with 89.6 GB/s bandwidth. The Core Ultra 9 285T supports only DDR5, also dual-channel, but with higher bandwidth at 102.4 GB/s. Both processors support ECC memory, which suits workstation and server-adjacent deployments. PCIe connectivity differs as well: the Core 5 221E provides Gen 5 with 16 lanes from the CPU, while the Core Ultra 9 285T provides Gen 5 with 20 lanes, offering additional expansion headroom.

Integrated graphics differentiate the pair. The Core 5 221E includes UHD Graphics 730, while the Core Ultra 9 285T includes Arc Xe-LPG Graphics 64EU, a more capable graphics engine. The Core Ultra 9 285T uses Socket 1851, whereas the Core 5 221E uses Socket 1700, meaning platform compatibility is not interchangeable. Both processors have locked multipliers, preventing user overclocking.

Head-to-Head Benchmarks

The Cinebench suite shows uniform leads for the Core Ultra 9 285T. In Cinebench R15 multi-core, the Core Ultra 9 285T scores 3,384 against 2,613, a 22.8% advantage. Single-core R15 shows 477 versus 368, a 22.9% lead. Cinebench R20 multi-core repeats the pattern: 14,100 versus 10,891, also 22.8% ahead. Single-core R20 delivers 1,990 versus 1,537, another 22.8% margin. Cinebench R23 multi-core yields 33,573 versus 25,933, again 22.8%, while single-core R23 shows 4,739 versus 3,661, a 22.7% lead. The consistency of approximately 22.8% across all Cinebench iterations indicates a scalable architectural advantage rather than a workload-specific quirk.

PassMark results reveal variable gaps. Data compression favors the Core Ultra 9 285T at 384,140 versus 324,285, a 15.6% lead. Data encryption shows a larger 40.1% difference: 32,061 versus 19,205. Extended instructions widen further to 33.7%: 27,477 versus 18,216. Find prime numbers demonstrates the largest disparity at 49.9%, with scores of 345 versus 173. Floating-point math follows at 42.7%, scoring 137,923 versus 79,028. Integer math shows the smallest multi-threaded gap at 11%, with 132,433 versus 117,813. PassMark multi-thread scores 39,931 versus 30,510, a 23.6% lead. Physics tests score 2,842 versus 2,230, a 21.5% margin. Random string sorting shows 47,695 versus 37,686, a 21% difference.

Single-threaded PassMark results narrow the gap considerably. The Core Ultra 9 285T scores 4,576 in both single_thread and singlethread tests, while the Core 5 221E scores 4,147, a 9.4% advantage. This indicates that while the Core Ultra 9 285T dominates in multi-threaded and specialized workloads, its per-core single-thread advantage is more modest, suggesting closer performance in lightly threaded applications.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 9 285T averages 51,310, while the Intel Core 5 221E averages 40,144, a difference of 11,166 points in favor of the Core Ultra 9 285T.

Q: How do the two processors compare in single-threaded performance?

A: In Cinebench R23 single-core, the Core Ultra 9 285T scores 4,739 versus 3,661, a 22.7% lead. In PassMark single-thread, the lead narrows to 9.4%, with scores of 4,576 versus 4,147.

Q: What is the TDP difference between these processors?

A: The Intel Core Ultra 9 285T has a TDP of 35W, while the Intel Core 5 221E has a TDP of 65W, making the Core Ultra 9 285T the lower-power option despite its higher core count.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core 5 221E and the Intel Core Ultra 9 285T support ECC memory.

Q: Which processor uses a smaller process node?

A: The Intel Core Ultra 9 285T uses a 3 nm process node fabricated by TSMC, while the Intel Core 5 221E uses a 10 nm process node from Intel.

Q: What are the socket requirements for each processor?

A: The Intel Core 5 221E uses Intel Socket 1700, while the Intel Core Ultra 9 285T uses Intel Socket 1851.

Where Each One Wins

The Intel Core Ultra 9 285T wins in all 17 recorded benchmark comparisons, so the use-case split is defined by the magnitude of its advantages rather than any reversal. For workloads involving prime number calculations, floating-point math, or data encryption, the Core Ultra 9 285T provides advantages exceeding 40%, making it the clear choice for cryptography, financial modeling, and scientific simulations. Extended instructions and physics tests also show strong leads above 21%, reinforcing its suitability for engineering software and physics engines.

For integer math, the Core Ultra 9 285T leads by only 11%, the smallest multi-threaded margin. This suggests that general integer-heavy workloads, such as database operations or compilation tasks, see a more moderate benefit from the Core Ultra 9 285T. Single-threaded applications show a 9.4% gap, meaning legacy software or lightly threaded games will run on either processor with similar responsiveness.

The Core 5 221E, despite losing every comparison, retains relevance through its lower TDP of 65W versus 35W for the Core Ultra 9 285T, which means it consumes more power while delivering less performance. The Core 5 221E supports DDR4 memory, which may allow reuse of existing memory modules on Socket 1700 platforms, whereas the Core Ultra 9 285T requires DDR5 on Socket 1851. The Core 5 221E also provides a launch MSRP of $232. The Core Ultra 9 285T provides a launch MSRP of $549. For users with older DDR4 systems, the Core 5 221E offers an upgrade path without a full memory replacement, though the benchmark data indicates a significant performance trade-off.

Specification Differences

The core count differs: the Core 5 221E has 14 cores and 20 threads, while the Core Ultra 9 285T has 24 cores and 24 threads. Base clock speeds are 2.70 GHz for the Core 5 221E versus 1.40 GHz for the Core Ultra 9 285T, but boost clocks favor the Core Ultra 9 285T at 5.40 GHz versus 5.20 GHz. TDP ratings differ substantially: 65W versus 35W.

Socket compatibility diverges, with Socket 1700 for the Core 5 221E and Socket 1851 for the Core Ultra 9 285T. Process nodes differ at 10 nm versus 3 nm, with different foundries: Intel versus TSMC. Die sizes are 257 mm² versus 243 mm², and the Core Ultra 9 285T lists 17,800 million transistors while the Core 5 221E has no transistor count recorded.

Cache capacities differ across all levels: L1 cache is 80 KB per core versus 192 KB per core, L2 cache is 2 MB per core versus 3 MB per core, and L3 cache is 24 MB shared versus 36 MB shared. Memory support includes DDR4 and DDR5 for the Core 5 221E versus only DDR5 for the Core Ultra 9 285T, with memory bandwidth of 89.6 GB/s versus 102.4 GB/s. PCIe lanes differ at Gen 5 with 16 lanes versus Gen 5 with 20 lanes. Integrated graphics are UHD Graphics 730 versus Arc Xe-LPG Graphics 64EU. Release dates are January 12, 2025 for the Core 5 221E and January 6, 2025 for the Core Ultra 9 285T. Part numbers are SRQDVQ659 and SRQD3, respectively.