Even in single-thread workloads, AMD generally comes out on top, which means that the Premiere editing experience is better on the Ryzen 9 4900HS, for example.In Civilization VI, the 4900HS again provides 37% more performance than the 3750H within the same 35W power envelope. And the other is, why do we see lower performance in some data heavy workloads like Matlab, Excel and Photoshop. Today we have the first retail Ryzen 4000 laptop on the market to evaluate, so the focus will be on the benchmarks, so we can see for the first time how Zen 2 brought across to mobile stacks up against Intel’s tried and true line-up.And then finally we have our most performance-intensive iGPU test in Gears 5 running at Medium settings. On paper, both CPUs have similar raw GPU performance, but with all the advantages AMD talked about like increased memory bandwidth, this new Zen 2 APU is able to pull ahead.We have two working theories as to why we see data heavy workloads perform this way. Interesting to note, but we’d expect most H-series laptops to also include a discrete GPU, like our test system. All of these APUs come with a 45W TDP, and are complemented by a low power 35W variant for laptops that also adhere to the rest of AMD’s HS-series design guidelines.While we don’t think many people will actually be using the integrated GPU in these H-series processors given the vast majority of H-series laptops also include discrete graphics, it’s worth a brief look at how the iGPU fares in a small selection of low intensity games, just to see what improvements AMD has made to the Vega GPU.Battery life will also be on people’s minds, but it’s not something we set out to test as we didn't have enough data for various laptops to make it a fair comparison.Just to be clear, Ryzen 4000 parts do not use AMD’s Zen 3 architecture. The new processors will arrive as the U-series for low-power and ultraportables and the H-series for high performance laptops. Previously this feature was restricted to just Intel QuickSync, which was one reason to buy an Intel laptop over AMD. We’ve seen a few times now that pure single-thread workloads are a weakness of the 4800H that only clocks up to 4.2 GHz.We’ve also run every laptop at stock settings and unless otherwise specified. This workload is a mixture of multi-threaded and single-threaded sections, and takes quite a while to complete. We also see the previous-gen AMD part get a bit humiliated, the 4900HS is so much faster than the Ryzen 7 3750H in the same power envelope it’s not funny.AMD’s Ryzen 4000 H-series consists of three distinct SKUs: the Ryzen 5 4600H delivers 6 cores and 12 threads for the mainstream, the Ryzen 7 4800H bumps that up to 8 cores and 16 threads, alongside a higher-clocked 8-core variant in the Ryzen 9 4900H. In essence, the 4900HS is set to provide similar performance to the 4800H at a lower level of power consumption, at least in theory.And then finally we have a look between the Ryzen 7 4800H and Ryzen 9 4900HS, a battle of 45W versus 35W. But we still think there’s a few performance questions left on the table. The 4900HS is a monstrous 179% faster than the 3750H in this workload, which is just unfathomable for a single generation performance leap.Then we get to our 2 pass encode which produces superior image quality and doesn’t support hardware acceleration. Of course, those that want outright performance will need to opt for Intel while Ryzen systems lack powerful discrete graphics.A new productivity test that we are introducing is code compiling, in this case compiling GCC. It'll be up to OEMs to make this happen.MATLAB performance is even between the Ryzen 7 4800H and Core i7-10875H using R2020a and the built-in benchmark, while coming in nearly 10% ahead of the 9750H. Related Products. It’s worth mentioning that every other task in Premiere outside of QuickSync encoding is faster on Ryzen 4000, including editing and applying intensive effects like the Warp Stabilizer.The other is the memory system. AMD’s low power Ryzen 9 4800HS outperforms Intel’s Core i9-9980H chip in many multi-threaded tasks but does give up ground in PCMark 10’s digital content creation benchmark. That’s a substantial win for Intel.On the other hand, our Core i9-9880H system doesn’t support QuickSync acceleration as the iGPU is fully disabled to support G-Sync through the Nvidia GPU. And then finally we have a look between the Ryzen 7 4800H and Ryzen 9 4900HS, a battle of 45W versus 35W. However, the 4800H is still by far the best choice for multithreaded workloads, providing 20 to 40 percent more performance. The Ryzen 9 comes with a fully unlocked Vega GPU with 8 compute units and a 1750 MHz max frequency.
With a higher TDP and longer boost, the 4800H is ~2% faster in multi-thread, but 2% slower in single-core. However, performance does fall behind in data heavy benchmarks like Excel, Photoshop and Matlab.One area where Zen 2 receives a particularly large upgrade is in how it handles AVX-256 instructions.