Intel Core i9-12900T vs Intel Core Ultra 5 225F Comparison

The Intel Core Ultra 5 225F and Intel Core i9-12900T are both desktop processors that land at the 85th percentile among all CPUs, yet they achieve that status through completely different means. The Ultra 5 225F is a modern 10-core Arrow Lake chip built on a 3 nm process, while the i9-12900T is a 16-core Alder Lake part from an older generation. Benchmark results show a clear split: the Ultra 5 225F wins 11 of 17 head-to-head tests, but the i9-12900T dominates in specific multi-threaded and single-core workloads. The data suggests these are not direct competitors for the same buyer, but rather two distinct tools for different jobs.

The Verdict — who should pick which, strictly from the data

The Ultra 5 225F is the pick for users who need balanced modern performance with a strong lean toward throughput in varied workloads. Its 11 head-to-head wins over the i9-12900T include decisive victories in encryption (9.1% ahead), extended instructions (39.8% ahead), and floating-point math (22.2% ahead). The 225F also wins the overall PassMark multithread test by 4.7%, scoring 31004 versus 29601, and the single-thread test by 15.4%, scoring 4397 versus 3810. This makes it the better all-rounder for everyday computing, content creation, and tasks that mix integer and floating-point operations.

The i9-12900T is the pick for users who prioritize raw multi-core rendering power or specific integer-heavy workloads. Its Cinebench R23 multi-core score of 24528 crushes the 225F’s 16467, a 32.9% advantage. It also wins integer math by a massive 38.6% (108211 versus 66417) and data compression by 9.9% (345021 versus 310843). If your primary application is video rendering, 3D modeling, or any workload that scales with thread count, the i9-12900T is clearly the stronger choice despite its age.

For single-core performance, the data is contradictory. The i9-12900T wins Cinebench R15 single-core by 17.5% and R23 single-core by 45.3%, but the Ultra 5 225F wins PassMark single-thread by 15.4%. This discrepancy suggests the two CPUs have very different performance characteristics depending on the benchmark’s instruction mix. Buyers should match the CPU to their specific application suite rather than relying on a single synthetic score.

Architecture Differences — node, cores, cache, features that differ

The two processors come from different manufacturing generations and design philosophies. The Ultra 5 225F uses the Arrow Lake architecture on a 3 nm process from TSMC, while the i9-12900T uses Alder Lake on Intel’s 10 nm process. This node difference explains why the 225F achieves competitive performance with fewer cores and lower power consumption. The 225F has 10 cores and 10 threads, all of which are performance cores, whereas the i9-12900T has 16 cores and 24 threads, indicating a hybrid design with both performance and efficiency cores.

Cache configurations differ significantly. The Ultra 5 225F has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 20 MB of shared L3 cache. The i9-12900T has 80 KB of L1 per core, 1.25 MB of L2 per core, and 30 MB of shared L3 cache. The 225F’s larger per-core L1 and L2 caches likely contribute to its strong single-thread PassMark score, while the i9-12900T’s larger L3 cache helps with multi-threaded data sharing.

Memory support also differs. The 225F supports only DDR5 memory with a bandwidth of 102.4 GB/s, while the i9-12900T supports both DDR4 and DDR5, though its bandwidth figure is not listed. The 225F has no integrated graphics, requiring a discrete GPU, whereas the i9-12900T includes UHD Graphics 770. Socket compatibility is another major difference: the 225F uses Intel Socket 1851, while the i9-12900T uses Intel Socket 1700. The i9-12900T has an unlocked multiplier, while the 225F does not.

Where Each One Wins — use-case split based on benchmark wins

The Ultra 5 225F wins in several specialized compute categories that suggest strong floating-point and extension-heavy performance. Its 39.8% lead in PassMark extended instructions is the largest non-prime-number victory. It also leads in floating-point math by 22.2% and physics by 34.2% (2430 versus 1811). The 225F’s 203.4% lead in find prime numbers (352 versus 116) is the single largest delta in either direction, indicating a massive advantage in repetitive integer iteration. This CPU is suited for scientific computing, physics simulations, and any application that uses SIMD extensions heavily.

The i9-12900T wins in areas that benefit from its 24 threads and larger L3 cache. Its Cinebench R23 multi-core win of 32.9% is the most significant for rendering workloads. The 38.6% lead in integer math and 9.9% lead in data compression point to strengths in database operations, file archiving, and general office productivity. The i9-12900T also wins random string sorting by 6.2%, which is relevant for text processing and sorting algorithms.

The single-core picture is nuanced. The i9-12900T wins both Cinebench single-core tests by wide margins (17.5% in R15, 45.3% in R23), but the Ultra 5 225F wins PassMark single-thread by 15.4%. This suggests the i9-12900T excels at legacy single-threaded workloads that rely on high clock speeds, while the 225F’s newer architecture handles modern single-threaded tasks more efficiently. Users running older software should lean toward the i9-12900T, while those using current-generation applications may prefer the 225F.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: Which CPU has better multi-core performance?

A: It depends on the benchmark. The i9-12900T wins Cinebench R23 multi-core by 32.9% (24528 versus 16467), but the Ultra 5 225F wins Cinebench R15 multi-core by 7.6% (2660 versus 2472) and Cinebench R20 multi-core by 7.4% (11059 versus 10301). The i9-12900T also wins PassMark integer math by 38.6%, while the 225F wins PassMark multithread by 4.7% (31004 versus 29601).

Q: Which CPU is better for single-threaded tasks?

A: The data is split. The i9-12900T wins Cinebench R15 single-core by 17.5% and R23 single-core by 45.3%, but the Ultra 5 225F wins PassMark single-thread by 15.4% (4397 versus 3810). The i9-12900T appears better for legacy single-threaded workloads, while the 225F is stronger in modern single-threaded benchmarks.

Q: Do both CPUs support DDR5 memory?

A: Yes, both support DDR5. The Ultra 5 225F supports only DDR5, while the i9-12900T supports both DDR4 and DDR5. The 225F has a listed memory bandwidth of 102.4 GB/s, while the i9-12900T’s bandwidth is not specified.

Q: Which CPU has integrated graphics?

A: Only the i9-12900T has integrated graphics, specifically UHD Graphics 770. The Ultra 5 225F has no integrated graphics, so it requires a discrete GPU for display output.

Q: What is the core and thread count difference?

A: The Ultra 5 225F has 10 cores and 10 threads, while the i9-12900T has 16 cores and 24 threads. The i9-12900T’s 24 threads come from a hybrid architecture with both performance and efficiency cores.

Q: Which CPU has a higher base clock?

A: The Ultra 5 225F has a base clock of 3.30 GHz, while the i9-12900T has a base clock of 1400.00 MHz (1.4 GHz). Both have the same boost clock of 4.90 GHz.

Head-to-Head Benchmarks — walk through the biggest wins each way with exact numbers

The most lopsided victory belongs to the Ultra 5 225F in PassMark find prime numbers, where it scores 352 versus the i9-12900T’s 116, a 203.4% advantage. This is an extreme outlier that suggests the 225F’s architecture is dramatically more efficient at this specific integer iteration workload. The next largest win for the 225F is extended instructions at 39.8% (28027 versus 20054), followed by physics at 34.2% (2430 versus 1811) and floating-point math at 22.2% (92554 versus 75741). These wins indicate the 225F has a much stronger floating-point unit and SIMD implementation.

The i9-12900T’s biggest win is Cinebench R23 single-core, where it scores 3462 versus 1893, a 45.3% advantage. This is followed by its 32.9% win in Cinebench R23 multi-core (24528 versus 16467) and a 38.6% win in integer math (108211 versus 66417). The i9-12900T also wins data compression by 9.9% (345021 versus 310843) and random string sorting by 6.2% (39771 versus 37325). The Cinebench R23 single-core result is particularly striking because it contradicts the PassMark single-thread result, where the 225F wins by 15.4%.

In the Cinebench series, the results are mixed across versions. The 225F wins R15 multi-core by 7.6% and R20 multi-core by 7.4%, but loses R23 multi-core by 32.9%. This inconsistency suggests that R23 places a heavier load on thread scaling, where the i9-12900T’s 24 threads come into play. The 225F wins R20 single-core by 7.4% (1561 versus 1454), but loses R15 and R23 single-core by 17.5% and 45.3% respectively. The R23 single-core gap is enormous and indicates the i9-12900T has a significant clock-for-clock advantage in that specific test.

Specification Differences — only the fields where the two differ

The processors differ in nearly every core specification field. The Ultra 5 225F has 10 cores and 10 threads, while the i9-12900T has 16 cores and 24 threads. Base clocks differ substantially: 3.30 GHz for the 225F versus 1400.00 MHz for the i9-12900T, though both share a 4.90 GHz boost clock. The TDP is 65 watts for the 225F and 35 watts for the i9-12900T, meaning the i9-12900T is rated for lower power consumption despite having more cores.

Socket compatibility is different: Intel Socket 1851 for the 225F versus Intel Socket 1700 for the i9-12900T. The architecture and process node also differ: Arrow Lake on 3 nm TSMC for the 225F versus Alder Lake on 10 nm Intel for the i9-12900T. The 225F has a die size of 243 mm² and 17,800 million transistors, while the i9-12900T has a 215 mm² die with no transistor count listed.

Cache hierarchies are distinct. The 225F has 192 KB of L1 per core, 3 MB of L2 per core, and 20 MB of shared L3. The i9-12900T has 80 KB of L1 per core, 1.25 MB of L2 per core, and 30 MB of shared L3. Memory support differs: the 225F supports only DDR5 with 102.4 GB/s bandwidth, while the i9-12900T supports both DDR4 and DDR5 with no listed bandwidth. The i9-12900T includes UHD Graphics 770, whereas the 225F has no integrated graphics. The i9-12900T has an unlocked multiplier, while the 225F is locked. Launch MSRP is $231 for the 225F and $489 for the i9-12900T.