The ASRock X470 Taichi Ultimate Motherboard Review: Aquantia 10GbE on Ryzen

Board Features

The X470 Taichi Ultimate is the new flagship board from ASRock with premium features such as a 10 Gigabit Aquantia AQC107 LAN port, an integrated Intel-based 802.11ac Wi-Fi module and a Texas Instruments NE5532 headphone amplifier for the front panel complimenting the Realtek ALC 1220 7.1 channel HD audio codec. While the Taichi Ultimate incorporates two M.2 slots, only the top and primary slot has NVMe PCIe 3.0 x4 support, while the secondary slot only supports PCIe 2.0 x4. A total of three full-length PCIe slots are featured with the top two operating at PCIe 3.0 x16 or x8/x8, featuring steel armor reinforcements on the slots, and the bottom slot operates at PCIe 2.0 x4 which shares bandwidth with the secondary M.2 slot so when an SSD is installed in that M.2 slot, the full-length slot is disabled.

For an expensive $300 AM4 motherboard aiming to satisfy enthusiasts and hardcore gamers, something that's a little disappointing is the board only hosts a total of five 4-pin fan headers (including CPU). While it's impossible to fit everything onto a PCB, ASRock could have supplied an external fan hub, but enthusiast system builders will most likely use fan splitters anyway. Even in regards to onboard graphics capabilities, the X470 Taichi Ultimate has a single HDMI 1.4b port which screams mediocre, even if users looking at this board most probably wouldn't be using an APU.

Test Bed

As per our testing policy, we take a high-end CPU suitable for the motherboard that was released during the socket’s initial launch, and equip the system with a suitable amount of memory running at the processor maximum supported frequency. This is also typically run at JEDEC subtimings where possible. It is noted that some users are not keen on this policy, stating that sometimes the maximum supported frequency is quite low, or faster memory is available at a similar price, or that the JEDEC speeds can be prohibitive for performance. While these comments make sense, ultimately very few users apply memory profiles (either XMP or other) as they require interaction with the BIOS, and most users will fall back on JEDEC supported speeds - this includes home users as well as industry who might want to shave off a cent or two from the cost or stay within the margins set by the manufacturer. Where possible, we will extend out testing to include faster memory modules either at the same time as the review or a later date.

Readers of our motherboard review section will have noted the trend in modern motherboards to implement a form of MultiCore Enhancement / Acceleration / Turbo (read our report here) on their motherboards. This does several things, including better benchmark results at stock settings (not entirely needed if overclocking is an end-user goal) at the expense of heat and temperature. It also gives, in essence, an automatic overclock which may be against what the user wants. Our testing methodology is ‘out-of-the-box’, with the latest public BIOS installed and XMP enabled, and thus subject to the whims of this feature. It is ultimately up to the motherboard manufacturer to take this risk – and manufacturers taking risks in the setup is something they do on every product (think C-state settings, USB priority, DPC Latency / monitoring priority, overriding memory sub-timings at JEDEC). Processor speed change is part of that risk, and ultimately if no overclocking is planned, some motherboards will affect how fast that shiny new processor goes and can be an important factor in the system build.

Many thanks to...

Thank you to ASUS for providing us with GTX 980 Strix GPUs. At the time of release, the STRIX brand from ASUS was aimed at silent running, or to use the marketing term: '0dB Silent Gaming'. This enables the card to disable the fans when the GPU is dealing with low loads well within temperature specifications. These cards equip the GTX 980 silicon with ASUS' Direct CU II cooler and 10-phase digital VRMs, aimed at high-efficiency conversion. Along with the card, ASUS bundles GPU Tweak software for overclocking and streaming assistance.

The GTX 980 uses NVIDIA's GM204 silicon die, built upon their Maxwell architecture. This die is 5.2 billion transistors for a die size of 298 mm2, built on TMSC's 28nm process. A GTX 980 uses the full GM204 core, with 2048 CUDA Cores and 64 ROPs with a 256-bit memory bus to GDDR5. The official power rating for the GTX 980 is 165W.

The ASUS GTX 980 Strix 4GB (or the full name of STRIX-GTX980-DC2OC-4GD5) runs a reasonable overclock over a reference GTX 980 card, with frequencies in the range of 1178-1279 MHz. The memory runs at stock, in this case 7010 MHz. Video outputs include three DisplayPort connectors, one HDMI 2.0 connector and a DVI-I.

Further Reading: AnandTech's NVIDIA GTX 980 Review

Thank you to Crucial for providing us with MX200/MX300 SSDs. Crucial stepped up to the plate as our benchmark list grows larger with newer benchmarks and titles, and the 1TB units are strong performers. The MX200s are based on Marvell's 88SS9189 controller and using Micron's 16nm 128Gbit MLC flash, these are 7mm high, 2.5-inch drives rated for 100K random read IOPs and 555/500 MB/s sequential read and write speeds. The 1TB models we are using here support TCG Opal 2.0 and IEEE-1667 (eDrive) encryption and have a 320TB rated endurance with a three-year warranty.

Further Reading: AnandTech's Crucial MX200 (250 GB, 500 GB & 1TB) Review

Thank you to Corsair for providing us with Vengeance LPX DDR4 Memory

Corsair kindly sent a set of their Vengeance LPX low profile, high-performance memory. The heatsink is made of pure aluminum to help remove heat from the sticks and has an eight-layer PCB. The heatsink is a low profile design to help fit in spaces where there may not be room for a tall heat spreader; think a SFF case or using a large heatsink.