Intel Core 5 221TE vs Intel Core Ultra 3 205 Comparison

# Intel Core 5 221TE vs Intel Core Ultra 3 205

The recorded data presents an unusually one-sided comparison. Across all 17 head-to-head benchmark tests, the Intel Core Ultra 3 205 takes every single win, with no test favoring the Intel Core 5 221TE. The average benchmark score gap is substantial: the Core Ultra 3 205 averages 31473 points versus 17860 for the Core 5 221TE, and the Ultra part sits at the 82nd percentile of all CPUs while the 221TE sits at the 71st. This is not a close contest by any measured metric, but the margin varies dramatically depending on the workload type, which reveals distinct architectural strengths.

Where Each One Wins

The Intel Core Ultra 3 205 wins everywhere in the database, but the degree of dominance tells a more interesting story. In purely single-threaded workloads, the Ultra 3 205 is devastatingly ahead. The PassMark single-thread test shows 4575 for the Ultra 3 205 versus 1734 for the Core 5 221TE, a delta of 62.1 percent. Cinebench R23 single-core follows the same pattern: 2803 versus 1596, again a 43.1 percent gap. This suggests the Ultra 3 205 has a fundamental per-core performance advantage that no workload can hide.

The Core 5 221TE's best relative showing comes in integer math, where it scores 42303 against 54755 for the Ultra 3 205. That 22.7 percent deficit is the smallest gap in the entire head-to-head set. The 221TE also stays relatively closer in data compression (39.9 percent behind) and random string sorting (45.5 percent behind) than in the more heavily parallel or floating-point tests. These workloads appear to partially offset the Ultra 3 205's architectural edge, though never enough to flip a result.

On the other side, the Ultra 3 205 is at its most overwhelming in prime number finding, scoring 268 versus just 59, a 78 percent margin. Floating-point math shows a 57.9 percent gap, extended instructions 57.2 percent, and data encryption 52.3 percent. The pattern is clear: the Ultra 3 205 excels in workloads that stress instruction throughput, floating-point execution, and cryptographic operations, while the 221TE narrows the gap in integer-heavy and compression tasks.

Architecture Differences

The two processors come from entirely different design lineages. The Core 5 221TE is built on Intel's 10 nm process at Intel's own foundry, uses the Bartlett Lake codename, and fits the Intel Socket 1700 platform. The Core Ultra 3 205 belongs to the Core Ultra Series 2 with the Arrow Lake architecture, codename Arrow Lake-S, fabricated on a 3 nm process by TSMC, and uses the newer Intel Socket 1851. The die sizes are comparable at 215 mm² for the 221TE and 243 mm² for the Ultra 3 205, but the transistor counts differ enormously: the Ultra 3 205 packs 17,800 million transistors, while the database lists no transistor figure for the 221TE.

Core and thread configurations also diverge sharply. The 221TE offers 10 cores and 16 threads, benefiting from Hyper-Threading-style multi-threading. The Ultra 3 205 has fewer cores at 8, but also just 8 threads, meaning it lacks simultaneous multi-threading entirely. Despite having two fewer cores and half the thread count, the Ultra 3 205 still wins every multi-threaded benchmark, which points to a massive per-core throughput advantage.

Cache hierarchies reflect the different design philosophies. The 221TE provides 80 KB of L1 per core, 1.25 MB of L2 per core, and 24 MB of shared L3. The Ultra 3 205 counters with 192 KB of L1 per core, 3 MB of L2 per core, but only 15 MB of shared L3. The Ultra 3 205 therefore uses smaller total L3 but much larger per-core L1 and L2 allocations, which helps explain its single-threaded dominance.

Memory support differs as well. The 221TE supports both DDR4 and DDR5 with dual-channel memory and 76.8 GB/s bandwidth, and it includes ECC memory support. The Ultra 3 205 supports DDR5 only, also dual-channel, but with a higher 102.4 GB/s bandwidth and no ECC. PCIe connectivity favors the Ultra 3 205 with Gen 5 and 20 CPU lanes versus Gen 5 and 16 lanes for the 221TE. Integrated graphics differ: the 221TE uses UHD Graphics 730, while the Ultra 3 205 uses Arc Xe-LPG Graphics 16EU.

Head-to-Head Benchmarks

The Cinebench suite shows a consistent 43.1 percent deficit for the Core 5 221TE across R15, R20, and R23 in both multi-core and single-core tests. In R15 multi-core, the 221TE scores 1139 against 2001 for the Ultra 3 205. R20 multi-core shows 4748 versus 8339. R23 multi-core shows 11305 versus 19856. Single-core runs follow the identical pattern: R15 at 160 versus 282, R20 at 670 versus 1177, and R23 at 1596 versus 2803. The uniformity of that 43.1 percent delta across all six Cinebench tests suggests the gap is structural rather than workload-specific.

PassMark tests reveal a wider spread. The smallest margin is integer math at 22.7 percent, with 42303 for the 221TE and 54755 for the Ultra 3 205. Data compression shows 156682 versus 260651, a 39.9 percent gap. Random string sorting shows 16929 versus 31083, a 45.5 percent gap. The passmark multithread score is 13301 versus 26167, a 49.2 percent deficit. Physics testing shows 977 versus 2016, a 51.5 percent gap. Data encryption shows 8963 versus 18772, a 52.3 percent gap.

The extreme cases deserve attention. Extended instructions score 9655 for the 221TE and 22578 for the Ultra 3 205, a 57.2 percent gap. Floating-point math shows 31661 versus 75136, a 57.9 percent gap. Prime number finding is the most lopsided: 59 versus 268, a 78 percent gap. The single-thread PassMark tests show 1734 versus 4575, a 62.1 percent gap, which is the second-largest margin in the set.

FAQ

Q: Does the Intel Core 5 221TE win any benchmark at all?

A: No. The database records 17 head-to-head tests, and the Intel Core Ultra 3 205 wins all 17. The Core 5 221TE has zero wins.

Q: Which CPU has more cores and threads?

A: The Core 5 221TE has 10 cores and 16 threads. The Core Ultra 3 205 has 8 cores and 8 threads. Despite fewer cores and exactly half the threads, the Ultra 3 205 wins every multi-threaded benchmark.

Q: How much faster is the Ultra 3 205 in single-threaded performance?

A: In PassMark single-thread testing, the Ultra 3 205 scores 4575 against 1734 for the 221TE, a 62.1 percent advantage. Cinebench R23 single-core shows 2803 versus 1596, a 43.1 percent advantage.

Q: What is the closest benchmark result between the two?

A: PassMark integer math shows the smallest gap at 22.7 percent, with the 221TE scoring 42303 and the Ultra 3 205 scoring 54755.

Q: Which processor supports ECC memory?

A: The Core 5 221TE supports ECC memory. The Core Ultra 3 205 does not support ECC.

Q: Do both processors use the same socket?

A: No. The Core 5 221TE uses Intel Socket 1700, while the Core Ultra 3 205 uses Intel Socket 1851. They are not socket-compatible.

Specification Differences

The two processors differ across nearly every specification field. Core count: 10 versus 8. Thread count: 16 versus 8. Base clock: 1.80 GHz for the 221TE versus 3.80 GHz for the Ultra 3 205. Boost clock: 5.00 GHz versus 4.90 GHz. TDP: 45 watts versus 57 watts. Process node: 10 nm versus 3 nm. Foundry: Intel versus TSMC. Codename: Bartlett Lake versus Arrow Lake-S. Die size: 215 mm² versus 243 mm². Transistor count: not listed for the 221TE versus 17,800 million for the Ultra 3 205.

Cache sizes differ at every level. L1: 80 KB per core versus 192 KB per core. L2: 1.25 MB per core versus 3 MB per core. L3: 24 MB shared versus 15 MB shared. Memory support: DDR4 and DDR5 versus DDR5 only. Memory bandwidth: 76.8 GB/s versus 102.4 GB/s. ECC: supported versus not supported. PCIe lanes: 16 versus 20, both Gen 5. Integrated graphics: UHD Graphics 730 versus Arc Xe-LPG Graphics 16EU. Launch MSRP: $232 for the 221TE, $140 for the Ultra 3 205. Release dates: January 2025 for the 221TE and July 2025 for the Ultra 3 205. Both are active desktop parts with locked multipliers.

The Verdict

The data makes the choice straightforward for most workloads. The Intel Core Ultra 3 205 outperforms the Core 5 221TE in every recorded benchmark, with an average score of 31473 versus 17860, and it sits at the 82nd percentile compared to the 71st. The Ultra 3 205 delivers between 22.7 percent and 78 percent higher scores depending on the test, making it the stronger option for single-threaded applications, floating-point math, encryption, compression, and multi-threaded rendering alike.

The Core 5 221TE retains relevance only in narrow contexts. Its ECC memory support is a feature the Ultra 3 205 lacks. Its compatibility with both DDR4 and DDR5 gives platform flexibility. Its lower 45 watt TDP suggests lower power draw, and its smaller 22.7 percent deficit in integer math shows it can keep within reach in that specific workload. But the benchmark data does not show a single scenario where the 221TE comes out ahead.

For buyers who need ECC support or DDR4 compatibility, the Core 5 221TE is the only option between these two. For every other measured workload, the Core Ultra 3 205 is the faster processor by a wide margin, and its higher 57 watt TDP appears to translate directly into superior throughput across the board.