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TSMC is no savior for Qualcomm either: Snapdragon 8+ Gen 1 in the OnePlus 10T put to the test

The OnePlus 10T deploys the Snapdragon 8+ Gen 1, which is slightly faster and more power-efficient than the Snapdragon 8 Gen 1 of the OnePlus 10 Pro.
The OnePlus 10T deploys the Snapdragon 8+ Gen 1, which is slightly faster and more power-efficient than the Snapdragon 8 Gen 1 of the OnePlus 10 Pro.
More efficiency and less heat development. Users expected these attributes from the switch from Samsung to TSMC as the SoC manufacturer of the Qualcomm chipset. However, our review of the OnePlus 10T indicates that the Plus version of the Snapdragon 8 Gen 1 is no game changer.

It's no secret that the high performance of Qualcomm's Snapdragon 8 Gen 1 is accompanied by high waste heat. This can be seen from the very strong heat development in certain reviews (Oppo Find X5, Xiaomi 12Motorola Edge 30 Pro), particularly in benchmark tests where both the CPU and GPU units of the SOC are placed under heavy stress. Ultimately, this waste heat problem leads to strong drops in performance, leading to pronounced instability in the 3DMark stress tests.

The OnePlus 10T overheats during benchmark tests
The OnePlus 10T overheats during benchmark tests

This phenomenon may have been partly due to dynamics in Samsung's production process, but our review of the OnePlus 10T reveals that the Snapdragon 8+ Gen 1 has not fundamentally solved the problem of heat development. The hope in TSMC and its 4nm process has somewhat fizzled out, at least in the OnePlus 10T. Although the OnePlus phone has a new Cryo Velocity Vapor cooling system and a more efficient SoC in the form of the Snapdragon 8+ Gen 1, we measured a higher surface temperature of almost 47 °C than in the 10 Pro. This level of waste heat also becomes a problem in terms of system stability because voltage- and overheating protection measures often kick in.

Power Consumption: Geekbench (150 cd/m²)

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OnePlus 10T Adreno 730, SD 8+ Gen 1, 256 GB UFS 3.1 Flash: Ø3.88 (0.779-7.97)
OnePlus 10 Pro Adreno 730, SD 8 Gen 1, 256 GB UFS 3.1 Flash: Ø6.31 (1.89-11.3)
Xiaomi 12 Pro Adreno 730, SD 8 Gen 1, 256 GB UFS 3.1 Flash: Ø6.81 (1.309-12.9)

In terms of efficiency, however, our measurements show that the OnePlus 10T consumes less power than smartphones with the Snapdragon 8 Gen 1. Especially under load, the peak power consumption of less than 6 watts is significantly lower than that of a 10 Pro, which consumes more than 11 watts. However, the improved efficiency only seems to apply to the the Cryo CPU unit, as indicated by a comparison of GeekBench and GFXBench (at a brightness of 150 cd/m²) values.

Power Consumption: GFX Bench (150 cd/m²)

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OnePlus 10T Adreno 730, SD 8+ Gen 1, 256 GB UFS 3.1 Flash: Ø9.67 (7.25-10.7)
OnePlus 10 Pro Adreno 730, SD 8 Gen 1, 256 GB UFS 3.1 Flash: Ø6.72 (5.35-8.45)
Motorola Edge 30 Pro Adreno 730, SD 8 Gen 1, 256 GB UFS 3.1 Flash: Ø11.5 (10.4-12.5)
Xiaomi 12 Pro Adreno 730, SD 8 Gen 1, 256 GB UFS 3.1 Flash: Ø7.78 (6.94-8.13)

All measurements, gaming tests and benchmark results can be found in our detailed review of the OnePlus 10T.

Source(s)

Review of the OnePlus 10T

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2022 08 > TSMC is no savior for Qualcomm either: Snapdragon 8+ Gen 1 in the OnePlus 10T put to the test
Marcus Herbrich, 2022-08-21 (Update: 2022-08-21)