![]() We end up with 15 percent better performance here than the Core i9-10980HK, but roughly the same performance as Intel's Core i7-1185G7 which uses Tiger Lake cores. The CPU is 5 percent faster than the 5800H here, and it just so happens the boost clock is 5 percent higher. In Cinebench R20's single threaded test, the Ryzen 9 5900HX surprisingly scales roughly in line with the multi-thread numbers. The best score we've achieved from an Intel processor is either the Core i7-10875H running at 110W, or the Core i9-10980HK at 75W, both of which score in the 4000 points range. What this allows Ryzen to do, is extend its lead over Intel's current best H-series processor, the Core i9-10980HK, to the point where we are now seeing a 40 percent performance advantage to AMD.Įven when we power uncap these processors, the Ryzen 9 5900HX at 45W is still the fastest chip we've tested, sitting neck and neck with the Ryzen 9 5980HS also at 45W which makes sense as they're very similar. With a score of nearly 5000 points, this CPU is six percent faster than the Ryzen 7 5800H, and 15 percent ahead of the 4800H. In Cinebench R20's multithreaded test, the Ryzen 9 5900HX is currently the fastest mobile processor that we've tested at 45W. ![]() XMG also allows you to uncap the laptop to run at 54W indefinitely, if you so choose. In this system we see a sustained 54W boost period for several minutes – that's typical of most Ryzen laptops we've reviewed so far. Similarly, boost behaviour is unmodified, as is the case with all systems tested. This means the 5900HX is set to its default 45W long term power limit. While the laptop is much the same on the outside, and the overall chassis, in addition to the 5900HX we have 16GB of dual-channel DDR4-3200 memory, a 1080p 240Hz display, but most importantly a GeForce RTX 3070 laptop GPU running at 115W, a GPU we'll be testing soon in a variety of games.įor testing, we're running the Ryzen 9 5900HX power normalized, which allows us to compare this CPU to others found in totally different laptops in the most fair way we can currently achieve. The test system we're using for benchmarking the R9 5900HX is the XMG Apex 17, an upcoming gaming laptop based on a Clevo chassis that's almost identical to the Apex 17 we used previously to test both the Ryzen 7 5800H and RTX 3060 laptop GPU, making this a higher-end configuration of the same system. ![]() The GPU can now top out at 2.1 GHz as well, versus 2.0 GHz with the less expensive parts.ĪMD also allows overclocking with this CPU, hence the "HX" designation although it will be up to laptop makers to expose this functionality through their own utilities. Where the 5900HX differs compared to the 5800H is purely in clock speed: the base clock is increased by 100 MHz, indicating we should get slightly better sustained all-core frequencies at the same power level while the boost clock has risen from 4.4 to 4.6 GHz. The 5900HX features upgraded Zen 3 CPU cores, which means a single-CCX design, double the 元 cache and higher IPC, among other improvements. The R9 5900HX has a similar layout to other Ryzen 7 and Ryzen 9 APUs this generation: we're getting 8 CPU cores and 16 threads, 16MB of 元 cache, plus 8 Vega GPU compute units unlocked, all within a 45W default TDP. While not the outright fastest processor in the lineup – that award goes to the top-binned Ryzen 9 5980HX – the 5900HX should be a better performer than the other Zen 3 APUs we've reviewed so far, namely the 5800H and 5980HS. The new Ryzen 9 5900HX is bound to be widely used across high-end gaming laptops.
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