Battery Life

Built on what Intel now calls Intel 7, the new Alder Lake processors do not get a completely new foundry node to reduce power consumption. The idea of having P-Cores and E-Cores though is an interesting one for the laptop space, as in theory the E-Cores could lower power consumption quite a bit. However, that discussion will need to likely wait for the thin and light notebooks to arrive with U-Series and P-Series processors as a H-Series device with a massive RTX 3080L Ti GPU, DDR5-4800, multiple PCIe 4.0 SSDs, and a 360 Hz display are not going to be a showcase for power efficiency of a processor.

As always, our battery life tests have the display set to 200 nits brightness and the system set in its most efficient mode.

Web Battery

Battery Life 2016 - Web

Our first test shows that the Raider GE76, despite a 99.9 Wh battery, performs very poorly if used as a portable computer. Thankfully it is not really intended to be used this way, as it is big and heavy to carry around, but the regression over the outgoing Tiger Lake model is clear. What is also very clear is how much better AMD is able to power-gate its large discrete GPU compared to NVIDIA, as the AMD gaming system dominates in the battery life tests.

Battery Life 2016 - Web - Normalized

The normalized results remove the battery size from the equation and drops the new Raider GE76 to the bottom of the results. There are several variables, so it is difficult to pinpoint exactly what is causing the power consumption regression, but likely DDR5-4800 is a part of it.

PCMark Modern Office Battery

PCMark 10 Modern Office Battery

The PCMark test will run a series of workloads in a ten-minute window, and if a device finishes the work quicker, it is able to idle for a larger percentage of the ten minutes, which probably assists the new Alder Lake system here as it is overall a more performant device compared to the outgoing Tiger Lake laptop.

Movie Playback

Battery Life Movie Playback

The battery life regression is even more pronounced in the battery life playback time. Clearly there is a significant amount of passive power draw in this system.

Battery Life Tesseract

Looking at the Tesseract score, which divide the movie playback time by the length of the movie The Avengers shows that you would run out of juice halfway through your third viewing.

Battery Life Summary

In a word the battery life could be summed up as "unimpressive". The Raider GE76 is not an ideal test bed to determine CPU efficiency under load since the underlying power draw is significant. To see how Alder Lake compares we will have to wait for more power efficient platforms to get more meaningful results.

Storage Performance

Unlike with the desktop counterpart for Alder Lake, the laptop variants are limited to “just” PCIe 4.0 storage. The Raider GE76 offers support for two of them, and the system shipped with two Samsung PM9A1 PCIe 4.0 drives at 1 TB each.

PCMark 10 System Drive Benchmark Average Access Time

PCMark 10 System Drive Benchmark Bandwidth

PCMark 10 System Drive Benchmark Score

The drive performance is class leading, with the highest results we have ever achieved in the PCMark Full System Drive test.

Gaming Performance Initial Thoughts
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  • blanarahul - Tuesday, January 25, 2022 - link

    That has always been the case with Intel CPUs for the past 4-5 years. Desktop Alder Lake touches 240 watts to beat AMD and laptop Alder Lake crosses 110 watts in a portable chassis to beat AMD.

    I am looking forward to how the 6800H performs.
    Reply
  • Yojimbo - Tuesday, January 25, 2022 - link

    You're looking at the wrong laptop as a basis for this discussion. Reply
  • FMinus - Tuesday, January 25, 2022 - link

    Looking at how this loses to 4800U from 2020 at 30W in CB20, this does not bode well for Intel in anything but 100W+ scenarios. 6000 U series will walk over anything Intel puts out. A shame really. The efficiency cores seem to be a waste of die space, what I suspected. Reply
  • IntelUser2000 - Wednesday, January 26, 2022 - link

    Actually you are mistaken. The E cores are what allows them to achieve this performance level. Without it it'll be worse.

    So the problem is the P cores are too inefficient.
    Reply
  • Spunjji - Thursday, January 27, 2022 - link

    The E cores aren't actually very efficient in terms of power - just die area. Their main purpose is marketing: they let Intel advertise a "14 core" CPU and scrape out wins in multi-threaded productivity benchmarks (when power isn't constrained). Reply
  • demian_thorne - Tuesday, January 25, 2022 - link

    I hope the “right” laptop does not cause 3rd degree burns :) Reply
  • Spunjji - Thursday, January 27, 2022 - link

    You say they're looking at the wrong laptop, but it's the laptop Intel provided, so it's worth asking yourself why Intel would provide this specific laptop. Much like the Ice Lake and Tiger Lake launches, Intel is front-loading reviews with high benchmark scores from an over-cooled platform that the vast majority of end users will not see reflected in actual products. Reply
  • drothgery - Tuesday, January 25, 2022 - link

    It's not great, but anything using an H-series CPU is going to spend a lot more time plugged in than on battery, and it's better than Tiger Lake H or Comet Lake H, so it's not like they're getting worse there. Reply
  • yeeeeman - Tuesday, January 25, 2022 - link

    this is a performance oriented laptop. I think having the OPTION to get the highest performance with close to unlimited power is good. If you keep it on balanced power profile it will consume 70W and lose about 10% of performance, so still a LOT faster than any other laptop. Reply
  • Kamen Rider Blade - Tuesday, January 25, 2022 - link

    Then go get a desktop AlderLake PC. You'll get even more Performance! Reply

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