If a product has the word “Xtreme” in its name, you can tell it’s not aimed at the average consumer. Adata’s XPG Spectrix D50 Xtreme memory is one such product. A simple look at the memory specs is more than enough to tell you that Adata isn’t marketing the Spectrix D50 Xtreme for average joes. Unlike the vanilla Spectrix D50, the Xtreme version is only available in DDR4-4800 and DDR4-5000 flavors with a limited capacity of 16 GB (2×8 GB). Memory probably won’t be on many radars unless you’re a very hardcore enthusiast.
Adata borrowed the design from Spectrix D50 and took it to another level for the Spectrix D50 Xtreme. The heat diffuser maintains the elegant look with geometric lines. The difference is that the Xtreme variant has a polished, mirror-like heat distributor. The reflective finish looks great, but it’s also a fingerprint and dust magnet. That is why Adata provides a microfibre cloth for cleaning up.
The memory module measures 43.9 mm (1.73 in), so compatibility with large CPU air coolers is good. The Spectrix D50 Xtreme still has that RGB diffuser on top of the memory module. Adata offers its own XPG RGB Sync application to control the lighting or, if you prefer, use your motherboard’s software. The RGB lighting of the Spectrix D50 Xtreme is compatible with the ecosystems of Asus, Gigabyte, MSI and ASRock.
Each Spectrix D50 Xtreme memory module is 8 GB in size and sticks to a conventional single-rank design. It features a black, eight-layer PCB and Hynix H5AN8G8NDJR-VKC (D-die) integrated circuits (ICs).
The default data rate and timing for the Spectrix D50 Xtreme are DDR4-2666 and 19-19-19-43 respectively. Adata provided the memory with two XMP profiles with identical 19-28-28-46 timings. The primary profile corresponds to DDR4-5000, while the secondary profile sets the memory to DDR4-4800. Both data rates require a DRAM voltage of 1.6 V to function properly. For more information on timing and frequency considerations, see our PC Memory 101 feature and our story on how to buy RAM.
|Memory Kit||part number||Capacity||data rate||Primary times||Tension||Guarantee|
|Crucial Ballistix Max||BLM2K8G51C19U4B||2x 8GB||DDR4-5100 (XMP)||19-26-26-48 (2T)||1.50||Lifetime|
|Adata XPG Spectrix D50 Xtreme||AX4U500038G19M-DGM50X||2x 8GB||DDR4-5000 (XMP)||19-28-28-46 (2T)||1.60||Lifetime|
|Thermaltake ToughRAM RGB||R009D408GX2-4600C19A||2x 8GB||DDR4-4600 (XMP)||19-26-26-45 (2T)||1.50||Lifetime|
|Predator Apollo RGB||BL.9BWWR.255||2x 8GB||DDR4-4500 (XMP)||19-19-19-39 (2T)||1.45||Lifetime|
|Patriot Viper 4 Blackout||PVB416G440C8K||2x 8GB||DDR4-4400 (XMP)||18-26-26-46 (2T)||1.45||Lifetime|
|TeamGroup T-Force Dark Z FPS||TDZFD416G4000HC16CDC01||2x 8GB||DDR4-4000 (XMP)||16-18-18-38 (2T)||1.45||Lifetime|
|TeamGroup T-Force Xtreme ARGB||TF10D416G3600HC14CDC01||2x 8GB||DDR4-3600 (XMP)||14-15-15-35 (2T)||1.45||Lifetime|
Our Intel platform just can’t handle the Spectrix D50 Xtreme DDR4-5000 memory kit. Neither our Core i7-10700K or Core i9-10900K sample has a strong IMC (Integrated Memory Controller) for a memory kit.
The Ryzen 9 5900X, on the other hand, had no memory issues. The AMD test system uses a Gigabyte B550 Aorus Master with the F13j firmware and aMSI GeForce RTX 2080 Ti Gaming Trio to run our RAM benchmarks.
Unfortunately, we ran into a minor issue that prevented us from testing the Spectrix D50 Xtreme at the advertised frequency. One of the limitations with B550 motherboards is the inability to set memory timings above 27. The Spectrix D50 Xtreme requires 19-28-28-46 to run properly on DDR4-5000. Despite brute-forcing the DRAM voltage, we just couldn’t get the Spectrix D50 Xtreme running at 19-27-27-46. The only stable data rate with the above timings was DDR4-4866, which we used for testing.
There’s always a performance loss when you break that 1:1 ratio with the Infinity Fabric Clock (FCLK) and memory clock on Ryzen processors. The Spectrix D50 Xtreme was just a hairline from surpassing the Xtreem ARGB memory kit, where DDR4-3600 is basically the sweet spot for Ryzen.
It is important to keep in mind that the Spectrix D50 Xtreme ran on DDR4-4866. As small as it may seem, that 134MHz difference should bring Adata’s offerings very close to Crucial’s Ballistix Max DDR4-5100, the highest-spec memory kit our labs have passed to date.
Tune overclocking and latency
Due to motherboard limitations, we were unable to continue overclocking on the Spectrix D50 Xtreme. However, in our experience, high-speed memory kits usually don’t have much gas left in the tank. Plus, the Spectrix D50 Xtreme already requires 1.6V to reach DDR4-5000, so it’s unlikely we would have gotten anywhere without pushing the same amounts of volts into memory.
Lowest stable timing
|Memory Kit||DDR4-4400 (1.45V)||DDR4-4500 (1.50V)||DDR4-4600 (1.55V)||DDR4-4666 (1.56V)||DDR4-4866 (1.60V)||DDR4-5100 (1.60V)|
|Crucial Ballistix Max DDR4-5100 C19||N/A||N/A||N/A||N/A||N/A||17-25-25-48 (2T)|
|Adata XPG Spectrix D50 Xtreme DDR4-5000 CL19||N/A||N/A||N/A||N/A||19-27-27-46 (2T)||N/A|
|Thermaltake ToughRAM RGB DDR4-4600 C19||N/A||N/A||18-24-24-44 (2T)||20-26-26-45 (2T)||N/A||N/A|
|Patriot Viper 4 Blackout DDR4-4400 C18||17-25-25-45 (2T)||21-26-26-46 (2T)||N/A||N/A||N/A||N/A|
At DDR4-4866, the Spectrix D50 Xtreme was cool with 19-27-27-46 timings. However, it wouldn’t go any lower no matter what voltage we put on it. We’ll revisit the overclocking section of the review once we find a more capable processor and motherboard for the job.
The Spectrix D50 Xtreme DDR4-5000 C19 does not offer you the best bang for your buck in any way. However, the memory keeps your system looking good and bragging on the go. Before you pull the trigger on a memory kit of this caliber, make sure you have a processor and motherboard that can tame the memory.
That said, the Spectrix D50 Xtreme DDR4-5000 C19 isn’t cheap. The memory costs $849.99 on Amazon. It’s not like there are tons of DDR4-5000 memory kits, but the Spectrix D50 Xtreme is actually the cheapest of them all. However, for the more budget-conscious consumers, you should probably stick with a DDR4-3600 or even DDR4-3800 memory kit with the lowest possible timing. Ultimately, the Spectrix D50 Xtreme is more luxury than necessity.