Intel Core i3-1210U vs Intel Core i5-1230U Comparison

Both the Intel Core i3-1210U and the Intel Core i5-1230U belong to the same Alder Lake-U mobile family, yet the benchmark data reveals a fractured competitive landscape. The i3-1210U claims decisive victories in a few heavily multithreaded Cinebench tests and in PassMark single-thread throughput, while the i5-1230U counters with a broader sweep across the remaining workload categories. A buyer must reconcile these contradictory results, and the data suggests that the choice hinges on which specific applications matter most.

The Verdict

The Intel Core i3-1210U is the pick for users whose primary workloads are represented by Cinebench R15 and R23 multicore rendering, where it holds commanding leads. In Cinebench R15 multicore, the i3-1210U scores 847 against the i5-1230U's 514, a 64.8% advantage. The gap widens in Cinebench R23 multicore, with the i3-1210U at 8413 versus 4402 for the i5-1230U, a 91.1% margin. These are outlier results that suggest a significant performance advantage in specific rendering scenarios.

The Intel Core i5-1230U, by contrast, wins the majority of head-to-head tests, taking 13 of 17 comparisons. It is the more consistent all-rounder, with wins across PassMark's integer math, floating-point math, data compression, encryption, and physics tests. Its single-core Cinebench scores are also uniformly higher: 186.8 versus 119 in R15, 550 versus 498 in R20, and 1310 versus 1187 in R23. The i5-1230U is the safer recommendation for a mixed workload environment, despite its aggregate benchmark score being slightly lower at 12559 versus 12795 for the i3-1210U.

Architecture Differences

Both processors share the same fundamental design: Intel's Alder Lake architecture on a 10 nm process node, fabricated by Intel, using the Intel BGA 1781 socket. They are both mobile-market parts released on the same date, 2022-02-22. The core configuration differs substantially, with the i3-1210U featuring 6 cores and 8 threads, while the i5-1230U doubles the core count to 10 cores and 12 threads. Despite this, both have identical base clocks of 1000.00 MHz and boost clocks of 4.40 GHz, and both have a TDP of 9.

Cache allocations diverge. Each core on both chips has 80 KB of L1 and 1.25 MB of L2, but the shared L3 cache is larger on the i5-1230U at 12 MB compared to 10 MB on the i3-1210U. Integrated graphics also differ: the i3-1210U carries UHD Graphics 64EU, whereas the i5-1230U is equipped with Iris Xe 80EU. Memory support is identical — DDR4 and DDR5 in dual-channel mode — and both support PCIe Gen 4. Neither supports ECC memory, and both have locked multipliers.

Head-to-Head Benchmarks

The most striking result is in Cinebench R23 multicore, where the i3-1210U's 8413 score represents a 91.1% advantage over the i5-1230U's 4402. This is a massive delta that dwarfs all other comparisons. Cinebench R15 multicore shows a similar pattern: 847 for the i3-1210U versus 514 for the i5-1230U, a 64.8% win. These two results are the i3-1210U's strongest arguments.

The i5-1230U, however, dominates the PassMark suite. In integer math, it scores 38401 versus 34445, a 10.3% win. Floating-point math goes to the i5-1230U at 25340 versus 23815, a 6% margin. Data compression favors the i5-1230U at 114042 versus 102965, a 9.7% edge. Encryption shows an 11.5% advantage for the i5-1230U (7176 versus 6348). Even in extended instructions, the i5-1230U leads with 6282 versus 5852, a 6.8% difference.

A notable anomaly appears in PassMark single-thread tests. The i3-1210U scores 3354, beating the i5-1230U's 2712 by 23.7%. This contradicts the Cinebench single-core results, where the i5-1230U wins every round: 186.8 versus 119 in R15, 550 versus 498 in R20, and 1310 versus 1187 in R23. The divergence between the two benchmark families is stark, with the i3-1210U winning PassMark single-thread but losing all Cinebench single-core tests. The i3-1210U also wins PassMark multithread modestly at 10228 versus 10881, a 6% loss for the i3-1210U — no, the data shows the i5-1230U wins that test.

FAQ

Q: Which processor has more cores?

A: The Intel Core i5-1230U has 10 cores and 12 threads, while the Intel Core i3-1210U has 6 cores and 8 threads.

Q: Is the i3-1210U faster in any multithreaded test?

A: Yes. The i3-1210U wins Cinebench R15 multicore with 847 versus 514, and Cinebench R23 multicore with 8413 versus 4402, giving it leads of 64.8% and 91.1% respectively.

Q: Why does the i5-1230U have a lower average benchmark score?

A: The i5-1230U's average benchmark score is 12559, compared to the i3-1210U's 12795. The i5-1230U sits at the 67th percentile of all CPUs, while the i3-1210U is at the 68th percentile. The i3-1210U's nearest rival is the AMD Ryzen Threadripper 3990X with an average score of 12786 (a 0.1% difference), whereas the i5-1230U's nearest rival is the AMD EPYC 9174F at 12536 (a 0.2% difference).

Q: Which chip has better integrated graphics?

A: The Intel Core i5-1230U integrates Iris Xe 80EU, while the Intel Core i3-1210U has UHD Graphics 64EU. The i5-1230U's graphics solution has a higher EU count.

Q: Do both processors use the same socket?

A: Yes, both use the Intel BGA 1781 socket and are based on the same Alder Lake architecture and 10 nm process node.

Q: Which processor wins more head-to-head benchmarks?

A: The Intel Core i5-1230U wins 13 of the 17 head-to-head comparisons, while the Intel Core i3-1210U wins only 4.

Where Each One Wins

The Intel Core i3-1210U is the clear winner in Cinebench R15 multicore and R23 multicore, with margins of 64.8% and 91.1% respectively. It also wins PassMark single-thread and PassMark singlethread tests, both scoring 3354 against the i5-1230U's 2712, a 23.7% advantage. These wins suggest the i3-1210U excels in specific rendering tasks and in certain single-threaded PassMark operations, despite its lower core count.

The Intel Core i5-1230U wins everywhere else. It takes all Cinebench single-core tests, with margins of 36.3% in R15, 9.5% in R20, and 9.4% in R23. In Cinebench R20 multicore, it wins 3903 versus 3533, a 9.5% margin. The PassMark suite goes heavily to the i5-1230U: data compression (9.7% win), data encryption (11.5%), extended instructions (6.8%), find prime numbers (7.3%), floating-point math (6%), integer math (10.3%), multithread (6%), physics (5.7%), and random string sorting (8.1%). This broad sweep makes the i5-1230U the better choice for general productivity, scientific computing, and compression tasks.

Specification Differences

The two processors differ on four specification fronts: core count, thread count, L3 cache size, and integrated graphics. The i3-1210U has 6 cores and 8 threads, while the i5-1230U has 10 cores and 12 threads. L3 cache is 10 MB shared on the i3-1210U versus 12 MB shared on the i5-1230U. Integrated graphics are UHD Graphics 64EU on the i3-1210U and Iris Xe 80EU on the i5-1230U. All other specifications are identical: 1000.00 MHz base clock, 4.40 GHz boost clock, 9 TDP, Intel BGA 1781 socket, Alder Lake architecture, 10 nm process, DDR4/DDR5 dual-channel memory support, PCIe Gen 4, no ECC support, no unlocked multiplier, and the same 2022-02-22 release date.