Uber-fast NVMe storage for 20 cents per gigabyte? That's what the Adatas XPG SX8200 Pro delivers. Of course, NAND prices have fallen recently, but so far, it has only been reflected in performance-driven (long-term) budget stations. The SX8200 Pro is an NVMe drive competing with top quality Samsung 970 Pro in performance, but is significantly cheaper.
Design and Specifications
Adata SX8200 Pro is a 2280 (22 mm wide, 80 mm long) form factor M.2 station with 3D (layered) TLC (Triple-Level Cell / 3-bit) NAND marshalled by a Silicon Motion SM-2262EN controller. It's a full four-lane PCIe 3.0 implementation, not two lanes like many other award-winning NVMe SSDs like Kingston's A1
There is a DRAM cache on board (an unspecified amount, probably 512 MB), secondary cache of about 1.2 percent of capacity, and a tertiary buffer that can expand up to 15 percent of capacity.
About the only outstanding physical property is the logo is heat exchanger, which the company contains in the package. It's undisturbed, but thermal glue is already applied, so it's an easy way to make.
SX8220 Pro is available in three sizes: 256GB (currently about $ 75 on Amazon), 512GB (currently approx. $ 120 on Amazon ), and 1TB we tested, currently about $ 215 on Amazon. Wow. Note that I only tested the 1TB version, the smaller capacity models will have less cache and fewer numbers. Talking about which …
I took Adata's assertion that the SX8200 Pro would perform on one, along with or better than the top rated Samsung 970 Pro with several very large salt grains. Well, my hair red and call me Harpo-Adata did not stumble. It competes extremely well with the 970 Pro until you write a very large amount of data. Even when it runs out of secondary or tertiary cache, it writes on a crisp 1GBps. I have seen NVMe SSD drops as low as 450Mbps apart from the cache.
You will see the 1TB SX8200 Pro in light blue bars compared to the aforementioned 1TB 970 Pro and Intel 960GB 905P, an incredibly long life and fast but extremely expensive competitor. CrystalDiskMark 6 rated the SX8200 Pro as performed approximately in line with both.
Probably surprised the SX8200 Pro 905P's amazing Search time in AS SSD.
The SX8200 Pro did better than fancy in our 48GB true world news stories. Quite a bit better.
the SX8200 Pro eventually ends in writing, but not until it's relatively late in the process. 15 percent (1TB amount of dynamic cache) is 150GB, which is larger than most full 4K movies. The screen below shows that it goes slowly from 1.8GB to 1GB in a 500GB copy.
I have documented the decline in writing speed, but it's not nearly exhaustive for me to sweat about it. Nevertheless, it is the one area where 970 Pro still applies. As mentioned above, the 512GB SX8200 Pro will write a bit slower, and the 256GB model is rather slower due to less cache and / or fewer chips and data chips. They will also probably dip in performance faster than the 1TB drive due to less cache. Fact it in your decision to buy. If you go up from SATA, you are pleasantly surprised, no matter what capacity you choose.
At the time of this writing, you can purchase 1TB Adata XPG SX8200 Pro for $ 80 less than 1TB 970 Pro. You really do not get much in the way of performance in the vast majority of situations, and the drop is not terrifying when it does. With Grapthor's hammer, what a saving!
That said, if you regularly write hundreds of gigabytes, the 970 Pro will still save you time and are probably worth the extra money. Also, the prices are bound to drop on other worthy drives like WDs Black NVMe, so take a look around.