Intel Core i9-12900TE vs Intel Xeon E-2378G Comparison

The Verdict

The benchmark data presents a clear hierarchy between these two Intel processors. The Intel Xeon E-2378G wins all six head-to-head Cinebench tests, taking both multi-core and single-core categories. The margins are consistent, ranging from 2.8% to 3%, which indicates a systematic performance advantage rather than a workload-specific quirk. The Xeon E-2378G records a Cinebench R23 multi-core score of 17974 against 17461 for the Core i9-12900TE, a 2.9% lead. In single-core R23, the Xeon posts 2537 versus 2465, also a 2.9% margin.

The data suggests the Xeon E-2378G is the pick for anyone prioritizing raw Cinebench throughput, especially in single-threaded tasks where its 5.10 GHz boost clock outpaces the Core i9-12900TE's 4.80 GHz. The Core i9-12900TE counters with a far larger core count (16 versus 8) and thread count (24 versus 16), plus a larger L3 cache (30 MB versus 16 MB), yet it still trails in every recorded benchmark. The recorded data implies that the Xeon's higher clock speeds and older but efficient Rocket Lake architecture deliver more work per cycle in these tests than the Alder Lake hybrid design does at its much lower power envelope.

For buyers deciding between the two, the Xeon E-2378G is the performance leader across all measured tests, while the Core i9-12900TE offers a lower 35 W TDP and an unlocked multiplier for those who prioritize efficiency and tuning headroom. The Xeon also supports ECC memory, a feature absent from the Core i9-12900TE. The Core i9-12900TE may appeal to desktop users wanting DDR5 support and PCIe Gen 5 connectivity, but the benchmark results show no performance payoff in Cinebench for those features. The verdict from the data is straightforward: the Xeon E-2378G wins on measured performance, while the Core i9-12900TE wins on platform flexibility and power efficiency.

Architecture Differences

The two processors come from different architectural lineages within Intel's lineup. The Xeon E-2378G uses Rocket Lake-E, built on a 14 nm process with a die size of 276 mm². The Core i9-12900TE uses Alder Lake-S, built on a 10 nm process with a smaller die size of 215 mm². Despite the newer and denser process node, the Alder Lake part does not translate that advantage into higher Cinebench scores in this comparison.

Core configuration differs substantially. The Xeon E-2378G has 8 cores and 16 threads, all running at a base clock of 2.80 GHz and boosting to 5.10 GHz. The Core i9-12900TE has 16 cores and 24 threads, but its base clock is recorded as 1100.00, which appears to reflect a very low base frequency for efficiency, with a boost clock of 4.80 GHz. The Xeon's higher boost clock aligns with its single-core wins across all three Cinebench versions.

Cache hierarchies diverge significantly. The Xeon E-2378G provides 80 KB of L1 per core, 512 KB of L2 per core, and 16 MB of shared L3. The Core i9-12900TE offers 80 KB of L1 per core, 1.25 MB of L2 per core, and 30 MB of shared L3. The Alder Lake part has more than twice the L3 cache and more than double the L2 per core, yet it still loses in multi-core Cinebench tests. This suggests the workload is more sensitive to clock speed and per-core efficiency than to raw cache capacity.

Memory support differs as well. The Xeon E-2378G supports DDR4 only, with dual-channel memory and a recorded bandwidth of 51.2 GB/s. The Core i9-12900TE supports both DDR4 and DDR5 over a dual-channel bus, though no bandwidth figure is recorded in the database. ECC memory is supported on the Xeon but not on the Core i9. PCIe connectivity also differs: the Xeon provides Gen 4 with 20 lanes, while the Core i9 provides Gen 5 with 20 lanes.

Integrated graphics vary between the two. The Xeon E-2378G carries UHD Graphics P750, while the Core i9-12900TE carries UHD Graphics 770. The market segments differ too: the Xeon targets Server/Workstation, while the Core i9 targets Desktop. The Core i9-12900TE has an unlocked multiplier, whereas the Xeon E-2378G is locked. The Core i9-12900TE also launched later, on 2022-01-03, compared to the Xeon's 2021-09-07 release date. Both parts carry the same launch MSRP of $494.

FAQ

Q: Which processor has the higher single-core performance?

A: The Intel Xeon E-2378G wins every single-core Cinebench test. In Cinebench R23 single-core it scores 2537 versus 2465 for the Core i9-12900TE, a 2.9% advantage. The Xeon also leads in R20 single-core (1065 versus 1035) and R15 single-core (255 versus 248).

Q: Does the Core i9-12900TE's higher core count help it win any benchmark?

A: No. Despite having 16 cores and 24 threads versus the Xeon's 8 cores and 16 threads, the Core i9-12900TE loses all three multi-core Cinebench tests. In R23 multi-core, it scores 17461 against the Xeon's 17974, a 2.9% deficit.

Q: What are the power consumption differences?

A: The Core i9-12900TE has a TDP of 35 W, while the Xeon E-2378G has a TDP of 80 W. The Core i9-12900TE draws less than half the rated power, yet still trails in all recorded benchmarks.

Q: Which processor supports ECC memory?

A: The Intel Xeon E-2378G supports ECC memory. The Core i9-12900TE does not list ECC memory support in the database.

Q: Do both processors use the same socket?

A: No. The Xeon E-2378G uses Intel Socket 1200, while the Core i9-12900TE uses Intel Socket 1700. They are not interchangeable.

Q: What is the launch MSRP of each processor?

A: Both processors have the same launch MSRP of $494. The Xeon E-2378G was released on 2021-09-07, and the Core i9-12900TE was released on 2022-01-03.

Specification Differences

The recorded data shows these differences between the two processors:

• Cores: 8 (Xeon E-2378G) versus 16 (Core i9-12900TE)
• Threads: 16 versus 24
• Base clock: 2.80 GHz versus 1100.00 (as recorded)
• Boost clock: 5.10 GHz versus 4.80 GHz
• TDP: 80 W versus 35 W
• Socket: Intel Socket 1200 versus Intel Socket 1700
• Architecture: Rocket Lake versus Alder Lake
• Process node: 14 nm versus 10 nm
• Die size: 276 mm² versus 215 mm²
• L2 cache per core: 512 KB versus 1.25 MB
• L3 cache shared: 16 MB versus 30 MB
• Memory support: DDR4 only versus DDR4 and DDR5
• Memory bandwidth: 51.2 GB/s versus not recorded
• ECC memory: supported versus not supported
• PCIe: Gen 4, 20 lanes versus Gen 5, 20 lanes
• Integrated graphics: UHD Graphics P750 versus UHD Graphics 770
• Market segment: Server/Workstation versus Desktop
• Multiplier unlocked: no versus yes
• Release date: 2021-09-07 versus 2022-01-03
• Part number: SRKN1 versus not recorded

The two processors share the same L1 cache size (80 KB per core), dual-channel memory bus, Intel as the foundry, and the same launch MSRP of $494. Both are marked as Active in production status and both sit at the 60th percentile versus all CPUs.

Head-to-Head Benchmarks

The head-to-head data covers six Cinebench tests, and the Xeon E-2378G wins every single one. The narrowest margin is in Cinebench R15 multi-core, where the Xeon scores 1811 against 1759 for the Core i9-12900TE, a 3% difference. The R15 single-core test shows a 2.8% lead (255 versus 248). All other tests show a 2.9% delta.

Cinebench R20 multi-core: the Xeon E-2378G scores 7549, the Core i9-12900TE scores 7333, a 2.9% advantage. Cinebench R20 single-core: 1065 versus 1035, again a 2.9% lead. Cinebench R23 multi-core: 17974 versus 17461, a 2.9% margin. Cinebench R23 single-core: 2537 versus 2465, a 2.9% margin.

The consistency of these deltas is notable. Across five of the six tests, the gap sits at exactly 2.9% or 3%, which points to a stable performance differential driven by clock speed and architectural efficiency rather than workload variability. The Xeon's boost clock of 5.10 GHz versus the Core i9's 4.80 GHz likely explains the single-core edge. In multi-core tests, the Xeon's 8 cores at high clocks manage to outpace the Core i9's 16 cores, which may be constrained by its low base clock and 35 W TDP.

The average benchmark scores in the database reinforce this picture. The Xeon E-2378G has an average benchmark score of 5199, while the Core i9-12900TE averages 5050. The Xeon sits 0.2% below the Intel Core i5-13400T in its nearest rival list, while the Core i9-12900TE sits exactly level with the Intel Core i9-9820X. The Xeon's nearest rivals cluster around 5210 to 5253, while the Core i9-12900TE's rivals range from 5043 to 5072, placing the two processors in different performance tiers despite the same MSRP.

Where Each One Wins

The Xeon E-2378G wins in all measured performance categories. It takes the multi-core crown in Cinebench R15, R20, and R23, with leads of 3%, 2.9%, and 2.9% respectively. It also wins all three single-core tests, with margins between 2.8% and 2.9%. For any workload that resembles Cinebench, which stresses both multi-threaded rendering and single-threaded responsiveness, the Xeon E-2378G is the stronger choice according to the recorded data.

The Core i9-12900TE does not win any benchmark in the head-to-head comparison, but it holds advantages in other recorded dimensions. Its 35 W TDP makes it a lower-power part than the Xeon's 80 W, which could matter in thermally constrained systems. Its unlocked multiplier offers tuning flexibility that the locked Xeon lacks. It supports both DDR4 and DDR5 memory, while the Xeon is limited to DDR4. It provides PCIe Gen 5 connectivity versus the Xeon's Gen 4. Its larger L3 cache (30 MB versus 16 MB) and larger L2 per core (1.25 MB versus 512 KB) could benefit workloads not captured by the Cinebench suite, though the database does not include such tests.

The use-case split from the data is clear. For users prioritizing maximum Cinebench scores, whether single-threaded or multi-threaded, the Xeon E-2378G is the answer. For users prioritizing lower power draw, newer memory standards, PCIe Gen 5, and overclocking capability, the Core i9-12900TE offers those features, but at the cost of lower measured performance in every recorded benchmark. Server and workstation buyers who need ECC memory will find it only on the Xeon, while desktop enthusiasts who want an unlocked multiplier will find that only on the Core i9. The data does not show any performance scenario where the Core i9-12900TE overtakes the Xeon E-2378G in Cinebench, so the choice ultimately depends on platform features and power constraints rather than benchmark scores.