![]() Sequential access patterns are a good measure of prefetcher performance. SiSoftware's Sandra is used to measure cache and memory latency with three different access patterns, giving us more granularity than a single test. For single-core work, we also see an improvement from Ice Lake's 26.5 GB/s of bandwidth to ~29 GB/s. Tiger Lake's doubled bandwidth also bodes well for the on-chip network's ability to feed the Xe LP graphics engine, which helps explain the big advances in our gaming results. That's also nearly twice as fast as the Ryzen 7 4800U's multi-core bandwidth. Here we can see the impact of the step up to LPDDR4x-4266, which shows up as a jump to ~57 GB/s of throughput from Ice Lake's 43 GB/s if we access the memory from all cores simultaneously, a 32% improvement. That has an impact not only on traditional compute operations, but also for graphics. Intel has made several improvements to the underlying microarchitecture of the chip, including beefing up the memory subsystem by moving from LPDDR4-3733 to LPDDR4x-4266 memory. One of Intel’s big promises during the Tiger Lake reveal was that the chip would run about as powerfully when your laptop is unplugged as when it is connected to a charger. ![]() It won’t be one of the best gaming laptops, and the heaviest games may still pose an issue, but Intel has made some great strides here, as long as you have the option to use it configured at 28W. And 28W, though, the Intel Reference Platform pulled just over 30 fps with an average of 30.4 fps.Īll of this is to say that, if you’re willing to compromise greatly on fidelity, you can run many games at 1080p on a laptop with Iris Xe graphics. But here, we ran it on its lowest settings under the “favor performance” preset.Īt 15W, the Core i7-1185G7 couldn’t pull it off (20.2 fps), and nor could the Yoga Slim 7 (21.2 fps) nor the Stealth (12.5 fps). Just for fun, we whipped out Red Dead Redemption 2, which we tend to run on medium for our enthusiast gaming desktop and laptop benchmarks. Given the circumstances, this is as close as we could get to conducting a meaningful series of tests that would be representative of final shipping products. The other downside to testing mobile chips is that because they’re designed directly into laptops, they have different configurations, chassis and even cooling systems, which means performance varies. ![]() Unfortunately, we did not have a comparable 14nm, 10th-Gen Comet Lake-U system availability for comparison, so on the Intel side, it’s 10nm vs 10nm. The Blade Stealth has a GTX 1650 Ti Max-Q, but we disabled it when we tested, relying instead on the system’s Gen11 Iris Plus graphics. We could have forced the update, but that could potentially cause stability issues, so we left those on version 1909. While Intel’s system came with Windows 10 version 2004, neither our Slim 7 nor Blade Stealth had 2004 ready for rollout. ![]() ![]() We also had the latest Razer Blade Stealth 13, with a 25W Intel Ice Lake Core i7-1065G7.įor each of those laptops, we applied all of the latest patches, fixes and updates available. On hand, we had the Lenovo Yoga Slim 7 (known as the Lenovo IdeaPad Slim 7 in North America) with a Ryzen 7 4800U, AMD’s top-end competitor in the mobile space with eight cores and 16 threads. Intel Core i7-1185G7 (15W/28W/28W with dynamic tuning)ġTB Samsung PM981a M.2 PCIe Gen 3 NVMe SSD Tiger Lake Reference Validation Platform CPU ![]()
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