Intel Core i3-12300HE vs Intel Core i9-12900TE Comparison

The Intel Core i9-12900TE and Intel Core i3-12300HE are both Alder Lake parts, but they target opposite ends of the Intel 12th Gen spectrum: one is a 16-core desktop chip with a 35 W TDP, the other an 8-core mobile chip with a 45 W TDP. Across all six Cinebench head-to-head tests, the i9-12900TE wins every round, yet the margins are remarkably thin. In Cinebench R23 multi-core, the i9 scores 17461 against the i3’s 17272, a delta of just 1.1%. The single-core story is similar: the i9 posts 2465 in R23 single-core versus 2438 for the i3, again a 1.1% edge. The largest gap anywhere is in Cinebench R20 single-core, where the i9’s 1035 beats the i3’s 1023 by 1.2%. In R15 multi-core, the i9 leads 1759 to 1740, and in R15 single-core it leads 248 to 245. The data suggests a near-tie in raw compute, with the i9 holding a consistent but narrow advantage across every workload.

Head-to-Head Benchmarks

The head-to-head table is unusual: a 16-core, 24-thread desktop processor against an 8-core, 12-thread mobile chip, yet the i9-12900TE only wins by 1.1% to 1.2% in every test. Start with Cinebench R23 multi-core, the most demanding workload in the set. The i9-12900TE scores 17461, while the i3-12300HE scores 17272. That 189-point gap translates to a 1.1% deltaPct. For context, the i9-12900TE’s nearest rival, the Intel Core i9-9820X, scores 5049 on average, a 0% delta, meaning the i9-12900TE is essentially tied with that older HEDT chip. The i3-12300HE’s nearest rival, the Intel Xeon W-2150B, scores 4992, a 0.1% delta. So both CPUs sit in the same performance neighborhood, just on opposite sides of a razor-thin line.

Move to single-core. In Cinebench R23 single-core, the i9-12900TE scores 2465, and the i3-12300HE scores 2438. The 1.1% delta is identical to the multi-core result, suggesting the i9’s higher 4.80 GHz boost clock (versus 4.30 GHz) gives it a slight edge, but not a dominant one. In Cinebench R20 single-core, the i9 scores 1035, the i3 scores 1023, a 1.2% delta — the largest win for the i9 anywhere in the comparison. In R20 multi-core, the i9 scores 7333, the i3 scores 7254, a 1.1% delta. The R15 tests follow the same pattern: multi-core 1759 versus 1740 (1.1%), single-core 248 versus 245 (1.2%). Across all six tests, the i9-12900TE wins by 1.1% or 1.2% — never more. This is a statistical tie in practical terms, but a clean sweep in the data.

The i9-12900TE’s average benchmark score is 5050, placing it in the 60th percentile of all CPUs. The i3-12300HE’s average is 4995, at the 59th percentile. That one-percentile difference underscores how close these parts are in the broader market. The i9’s nearest rivals include the AMD Ryzen 7 PRO 5750GE (average 5070, -0.4% delta) and the Intel Xeon W-2155 (average 5072, -0.4% delta), both of which slightly outscore it. The i3’s nearest rivals include the AMD Ryzen 5 PRO 5650G (average 5002, -0.1% delta) and the Intel Core i5-13500TE (average 5002, -0.1% delta), again showing the i3 sitting just below a cluster of similar performers. The data implies that the i9-12900TE’s extra cores and threads do buy more performance, but the i3-12300HE’s higher base clock (1900 MHz versus 1100 MHz) compensates enough to keep the gap under 2%.

The Verdict

The data is unambiguous: the Intel Core i9-12900TE wins every benchmark in this comparison, but the margins are so small that the verdict depends on more than raw scores. The i9-12900TE takes 6 wins out of 6, with deltas ranging from 1.1% to 1.2%. If the only question is which chip is faster, the answer is the i9-12900TE — but barely. The i3-12300HE, despite having half the cores and half the threads, trails by a single percentage point in every test. That is a remarkable result for an 8-core mobile part. The i9’s 30 MB of shared L3 cache versus the i3’s 12 MB gives it a theoretical advantage in cache-heavy workloads, yet the benchmark data shows only a 1.1% average lead. The i9 also has a higher boost clock (4.80 GHz versus 4.30 GHz) and a lower TDP (35 W versus 45 W), which should help in sustained loads, but the i3’s higher base clock (1900 MHz versus 1100 MHz) narrows the gap.

Who should pick which? From the data alone, the i9-12900TE is the correct choice for anyone who needs the absolute best Cinebench scores, but the difference is within the noise of typical thermal and power variations. The i3-12300HE is the better pick for a mobile or space-constrained system, given its BGA 1744 socket and 45 W TDP, while the i9-12900TE is a desktop part on LGA 1700. The i9’s launch MSRP is $494, which is a figure worth noting, but the data does not show a performance gap that justifies a large price premium. In fact, the i3-12300HE’s average benchmark score of 4995 is only 1.1% below the i9’s 5050, making the i3 a surprisingly strong competitor for its smaller footprint.

Where Each One Wins

The i9-12900TE wins everywhere in the head-to-head, but the nature of those wins matters. In multi-core tests, the i9’s 16 cores and 24 threads should dominate the i3’s 8 cores and 12 threads, yet the delta is only 1.1% in R23, R20, and R15. This suggests the i9 is heavily power-constrained at its 35 W TDP, preventing it from fully leveraging its extra cores. The i3-12300HE, with a 45 W TDP and higher base clock, can push its 8 cores harder relative to their count, keeping pace. For single-core tests, the i9’s 4.80 GHz boost clock gives it a 1.2% edge in R20 and R15, but the i3’s 4.30 GHz boost is close enough to avoid a blowout. So the i9 wins on raw performance in every category, but the i3 wins on efficiency per core — it delivers 95% or more of the i9’s performance with half the cores.

Use-case split from the data: the i9-12900TE is the pick for desktop builds where the LGA 1700 socket, 20 PCIe Gen 5 lanes, and UHD Graphics 770 integrated GPU are relevant. The i3-12300HE is for mobile systems, with its BGA 1744 socket, 20 PCIe Gen 4 lanes, and a simpler UHD Graphics (non-770) iGPU. In multi-threaded rendering, the i9’s 17461 R23 score edges out the i3’s 17272, so content creators on desktop should favor the i9. In single-threaded tasks like everyday responsiveness, the i9’s 2465 R23 score versus 2438 is again a win, but the i3’s higher base clock means it may feel snappier in light, bursty workloads. The i3-12300HE also has a part number (SRLE8) and an unlocked multiplier on the i9, meaning the i9 can be overclocked, though the data does not include overclocked results.

FAQ

Q: Which CPU has the higher multi-core score in Cinebench R23?

A: The Intel Core i9-12900TE scores 17461, while the Intel Core i3-12300HE scores 17272, giving the i9 a 1.1% advantage.

Q: Is the i3-12300HE ever faster than the i9-12900TE?

A: No. In all six head-to-head benchmarks (R15, R20, R23, both single and multi-core), the i9-12900TE wins, with deltas ranging from 1.1% to 1.2%.

Q: How do these CPUs compare to their nearest rivals?

A: The i9-12900TE’s average score is 5050, with the Intel Core i9-9820X at 5049 (0% delta) and the AMD Ryzen 7 PRO 5750GE at 5070 (-0.4% delta). The i3-12300HE’s average is 4995, with the Intel Xeon W-2150B at 4992 (0.1% delta) and the AMD Ryzen 5 PRO 5650G at 5002 (-0.1% delta).

Q: What are the cache differences?

A: The i9-12900TE has 30 MB of shared L3 cache, while the i3-12300HE has 12 MB of shared L3 cache. Both have 80 KB L1 per core and 1.25 MB L2 per core.

Q: Do they support the same memory and PCIe?

A: Both support DDR4 and DDR5 dual-channel memory and have 20 lanes (CPU only), but the i9-12900TE uses PCIe Gen 5, while the i3-12300HE uses PCIe Gen 4.

Q: What is the socket and market segment difference?

A: The i9-12900TE uses Intel Socket 1700 and is a Desktop part, while the i3-12300HE uses Intel BGA 1744 and is a Mobile part.

Architecture Differences

Both CPUs are built on Intel’s Alder Lake architecture, but they come from different dies: the i9-12900TE is Alder Lake-S (codename Alder Lake-S), and the i3-12300HE is Alder Lake-H (codename Alder Lake-H). Both use a 10 nm process node from Intel’s own foundry, with nearly identical die sizes — 215 mm² for the i9 and 217 mm² for the i3. The core counts diverge sharply: the i9 has 16 cores and 24 threads, while the i3 has 8 cores and 12 threads. The cache hierarchy is shared in structure (80 KB L1 per core, 1.25 MB L2 per core), but the L3 cache differs massively: 30 MB shared on the i9 versus 12 MB shared on the i3. The i9 features UHD Graphics 770, while the i3 has a more generic UHD Graphics solution — the data does not specify a model number for the i3’s iGPU. The i9 has an unlocked multiplier, allowing overclocking, while the i3’s multiplier is locked. The i9 is part of the Core i9 (Alder Lake-S) generation, and the i3 is Core i3 (Alder Lake-H), reflecting their distinct market positioning.

Specification Differences

The key specification differences are stark. The i9-12900TE offers 16 cores and 24 threads, versus the i3-12300HE’s 8 cores and 12 threads. Base clocks differ significantly: the i9 runs at 1100 MHz, while the i3 runs at 1900 MHz. Boost clocks are closer, with the i9 at 4.80 GHz and the i3 at 4.30 GHz. TDP also differs: the i9 is rated at 35 W, the i3 at 45 W. The socket is a major divider — the i9 uses Intel Socket 1700, the i3 uses Intel BGA 1744. The market segment confirms this: the i9 is Desktop, the i3 is Mobile. The i9 has a launch MSRP of $494, while the i3 has no listed launch MSRP. The i9’s PCIe support is Gen 5, while the i3’s is Gen 4, both with 20 lanes (CPU only). The i9’s integrated graphics are UHD Graphics 770, while the i3 lists only “UHD Graphics.” The i9 has an unlocked multiplier, the i3 does not. The i3 has a part number (SRLE8), while the i9 does not list one. The i9 has a release date of 2022-01-03, while the i3 has no release date listed. Both are marked as Active in production status.