Intel Core i9-9900T vs Intel Xeon W-1290TE Comparison

The Intel Xeon W-1290TE and the Intel Core i9-9900T are both 35W processors, but they target fundamentally different segments of the market. The Xeon is a server/workstation part on Intel’s Socket 1200 platform, while the i9 is an end-of-life desktop chip on Socket 1151. Despite their similar power envelopes, the benchmark data shows a consistent, if narrow, performance advantage for the Xeon across every tested workload.

Head-to-Head Benchmarks

The Xeon W-1290TE sweeps all six head-to-head benchmark comparisons, but the margins are remarkably uniform. In Cinebench R15, the Xeon scores 1230 multi-core against the i9-9900T’s 1117, a 10.1% advantage. The single-core gap is nearly identical: 173 versus 157, a 10.2% lead for the Xeon. This pattern repeats in Cinebench R20, where the Xeon posts 5129 multi-core and 724 single-core, while the i9-9900T manages 4658 and 657, respectively — again a 10.1% and 10.2% delta.

Moving to the more demanding Cinebench R23 workload, the Xeon’s multi-core score of 12213 outpaces the i9-9900T’s 11091 by 10.1%. The single-core result is 1724 versus 1565, a 10.2% gap. These consistent deltas suggest the Xeon’s advantage is structural rather than workload-specific. The Xeon holds a 10.1-10.2% lead in every single test, whether the workload is heavily threaded or purely single-threaded.

Interestingly, the i9-9900T has one benchmark the Xeon lacks in the head-to-head table: Geekbench. The i9-9900T scores 7298 multi-core and 1452 single-core in that suite. However, since the Xeon was not tested in Geekbench, those numbers cannot be directly compared here. The overall average benchmark score tells a similar story: the Xeon averages 3532, while the i9-9900T averages 3499, a difference of roughly 1%. This places the Xeon in the same performance tier as the Intel Core i3-12300 and Core i5-10600K, both of which score 3532 and 3533 respectively, while the i9-9900T sits near the Intel Xeon E-2176G at 3502.

What the data does not show is any scenario where the i9-9900T wins. The Xeon takes all six head-to-head matchups, and its wins are consistent across Cinebench versions. The margin is meaningful but not transformative; a 10% uplift in rendering workloads is noticeable in production environments, but it does not represent a generational leap over the desktop part.

FAQ

Q: Which processor is faster in multi-core Cinebench R23?

A: The Intel Xeon W-1290TE scores 12213, which is 10.1% higher than the Intel Core i9-9900T’s 11091.

Q: Does the Xeon W-1290TE have a single-core advantage?

A: Yes. In Cinebench R23 single-core, the Xeon scores 1724 versus the i9-9900T’s 1565, a 10.2% lead. The same 10.2% delta appears in Cinebench R15 and R20 single-core tests.

Q: Are both processors locked or unlocked?

A: Both the Xeon W-1290TE and the Core i9-9900T have their multipliers locked, so neither supports unlocked overclocking.

Q: Do these CPUs support ECC memory?

A: Only the Xeon W-1290TE supports ECC memory. The Core i9-9900T does not list ECC support in its specifications.

Q: What is the memory bandwidth difference between the two?

A: The Xeon W-1290TE has a memory bandwidth of 46.9 GB/s, while the Core i9-9900T has 42.7 GB/s. Both use dual-channel DDR4 memory.

Q: Which processor has a higher boost clock?

A: The Xeon W-1290TE boosts to 4.50 GHz, while the Core i9-9900T boosts to 4.40 GHz.

Architecture Differences

Both processors are built on Intel’s 14 nm process node, but they come from different architectural generations. The Xeon W-1290TE is part of the Comet Lake family, released in May 2020, while the Core i9-9900T is a Coffee Lake-R part from April 2019. The Xeon carries the Comet Lake codename, and its generation is listed as "Xeon (Comet Lake)." The i9-9900T belongs to the Coffee Lake Refresh generation.

The core counts diverge significantly. The Xeon W-1290TE has 10 cores and 20 threads, whereas the Core i9-9900T has 8 cores and 16 threads. This two-core, four-thread advantage explains much of the multi-core performance gap. Cache allocation follows the same pattern: the Xeon has 20 MB of shared L3 cache, while the i9-9900T has 16 MB. Both share the same per-core L1 (64 KB) and L2 (256 KB) cache sizes.

Die size also differs. The Xeon’s die measures 206 mm², while the i9-9900T’s is 180.3 mm². The larger die on the Xeon accommodates the additional cores and cache. Both chips use the same PCIe configuration: Gen 3 with 16 lanes from the CPU. Integrated graphics are present on both, but they differ — the Xeon uses Intel UHD Graphics P630, while the i9-9900T uses UHD Graphics 630. The Xeon’s memory bandwidth is higher at 46.9 GB/s versus 42.7 GB/s, and ECC memory support is exclusive to the Xeon.

The socket situation is a critical architectural difference. The Xeon W-1290TE uses Intel Socket 1200, while the Core i9-9900T uses Intel Socket 1151. These are not interchangeable, meaning a motherboard designed for one will not accept the other. The Xeon is also classified as a Server/Workstation part and remains in active production, whereas the i9-9900T is a Desktop part that has reached end-of-life status.

Specification Differences

The most obvious specification gap is core count: the Xeon W-1290TE offers 10 cores and 20 threads, compared to the i9-9900T’s 8 cores and 16 threads. Base clocks differ as well, with the i9-9900T starting at 2.10 GHz versus the Xeon’s 1.80 GHz. The boost clocks are closer, but the Xeon still edges ahead at 4.50 GHz versus 4.40 GHz.

Cache is another differentiator. The Xeon has 20 MB of L3 cache, while the i9-9900T has 16 MB. Memory bandwidth is higher on the Xeon at 46.9 GB/s, compared to 42.7 GB/s for the i9-9900T. ECC memory support is present only on the Xeon. The integrated graphics differ: Intel UHD Graphics P630 on the Xeon versus UHD Graphics 630 on the i9-9900T.

Socket compatibility is a major split. The Xeon uses Intel Socket 1200, while the i9-9900T uses Intel Socket 1151. The Xeon’s die size is 206 mm², versus 180.3 mm² for the i9-9900T. The production status also differs: the Xeon is Active, while the i9-9900T is End-of-life. The market segment is different too — Server/Workstation for the Xeon, Desktop for the i9-9900T. The launch MSRP for the Xeon is $552, and for the i9-9900T it is $423. Both processors have locked multipliers, and neither supports unlocked overclocking.

The Verdict

The benchmark data is unambiguous: the Intel Xeon W-1290TE outperforms the Intel Core i9-9900T in every head-to-head comparison. The Xeon’s 10-core, 20-thread configuration delivers a 10.1% advantage in multi-core Cinebench R23 (12213 versus 11091) and a matching 10.2% lead in single-core performance (1724 versus 1565). This consistency across workloads makes the Xeon the stronger choice for any application that can leverage the extra cores and threads.

However, the choice is not purely about raw performance. The Xeon W-1290TE is a server/workstation part, which means it demands a Socket 1200 motherboard and supports ECC memory. It also costs more at launch — $552 versus $423 for the i9-9900T. The i9-9900T, while slower, is a desktop part on the older Socket 1151 platform and has reached end-of-life status. For users building a new system today, the Xeon’s active production status and platform support make it the more future-proof option.

The data suggests that users who need ECC memory, require a workstation-class platform, or want the extra two cores should choose the Xeon W-1290TE. Its 20 MB of L3 cache and 46.9 GB/s memory bandwidth further tip the scales in its favor for memory-sensitive workloads. The i9-9900T, meanwhile, remains a capable desktop processor, but its 8-core configuration, lower cache, and end-of-life status mean it trails the Xeon in every measurable benchmark. Given the 10% performance delta across the board, the Xeon W-1290TE is the superior processor by the numbers. The i9-9900T only makes sense for users already invested in the Socket 1151 platform who cannot justify a platform change.