G.Skill’s AMD EXPO ULL (Ultra Low Latency) memory kits, strong contenders among today’s best RAM options, have arrived on the retail market. While AMD previously stated that EXPO ULL memory kits would be “effectively the same price” as vanilla EXPO memory kits, this has proven by far not to be the case. In reality, these new EXPO ULL kits carry a substantial premium that can scale up to 80% over their regular counterparts.
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The Trident Z5 NeoX is G.Skill’s latest memory series featuring ULL optimizations. The new lineup is available in three striking color options, black, glossy black, and white, that cater to a variety of system aesthetics. G.Skill has not released the official product pages for the Trident Z5 NeoX series, so detailed information on the full range of planned capacities and speeds is unavailable. Newegg is currently selling the Trident Z5 NeoX memory kits in a 32GB (2x16GB) dual-channel configuration clocked at DDR5-6000.
To make it a meaningful comparison, we compared the Trident Z5 NeoX memory kits to their direct counterparts, the standard Trident Z5 Neo series. We deliberately excluded similarly specced lineups such as the Aegis or Ripjaws series, which are tailored for budget-conscious buyers, as well as omitting the Trident Z5 Royal Neo, which targets a more posh crowd.
The Trident Z5 NeoX DDR5-6000 C26 memory kit carries a 57% premium over the standard Trident Z5 Neo DDR5-6000 C26 memory kit. The price gap widens further for the DDR5-6000 C28 variant, which commands a 79% premium. Meanwhile, the Trident Z5 NeoX C30 and C36 versions are 14% and 9% more expensive than their regular Trident Z5 Neo counterparts, respectively.
Memory Kit | MSRP | Capacity | Data Rate | Primary timings | Voltage (V) | Part Number |
Trident Z5 NeoX | 2 x 16GB | DDR5-6000 | 26-36-36-32 | 1.35 | F5-6000A2636H16GX2-TZ5NXRK | |
Trident Z5 Neo | 2 x 16GB | DDR5-6000 | 26-36-36-96 | 1.45 | F5-6000J2636H16GX2-TZ5NR | |
Trident Z5 NeoX | 2 x 16GB | DDR5-6000 | 28-36-36-32 | 1.35 | F5-6000A2836G16GX2-TZ5NXRK | |
Trident Z5 Neo | 2 x 16GB | DDR5-6000 | 28-36-36-96 | 1.40 | F5-6000J2836G16GX2-TZ5NR | |
Trident Z5 NeoX | 2 x 16GB | DDR5-6000 | 30-38-38-32 | 1.35 | F5-6000A3038F16GX2-TZ5NXRK | |
Trident Z5 Neo | 2 x 16GB | DDR5-6000 | 30-38-38-96 | 1.35 | F5-6000J3038F16GX2-TZ5NR | |
Trident Z5 NeoX | 2 x 16GB | DDR5-6000 | 36-36-36-76 | 1.35 | F5-6000A3636F16GX2-TZ5NXRK | |
Trident Z5 Neo | 2 x 16GB | DDR5-6000 | 36-36-36-96 | 1.35 | F5-6000J3636F16GX2-TZ5N |
On a superficial level, it’s basically impossible to grasp the true extent of the level of optimization that goes into AMD EXPO ULL memory kits just by looking at product listings. It’s customary for memory manufacturers and retailers to only list the four primary memory timings: CAS Latency (CL), Row Address to Column Delay (tRCD), Row Precharge Time (tRP), and Row Active Time (tRAS). Unfortunately, these memory timings only tell part of the story, since most of the secondary timings for AMD EXPO ULL certification, including Refresh Interval (tREFI), Row-to-Row Delay Short (tRRDS), and Write Recovery Time (tWR), are not publicly visible.
Returning to the example of the Trident Z5 NeoX memory kits, what immediately stands out is the dramatically reduced tRAS value, which is up to 67% lower than that of standard Trident Z5 Neo memory kits. In short, tRAS dictates how many clock cycles must pass after a row opens before the memory controller can close it. The reason for high tRAS values in DDR5 resides in the architecture itself. Unlike DDR4, which operates with a single 64-bit channel, DDR5 employs two independent 32-bit subchannels. This change, alongside the doubling of burst length from BL8 to BL16, enables each memory command to transfer twice as much data through the channels in a single operation. As a result, the memory rows remain open longer, leading to the higher tRAS values typically seen in DDR5 modules. What makes the AMD EXPO ULL memory kits unique is that they drive tRAS values back down to levels reminiscent of high-performance DDR4 from the old days.
Another significant advantage of AMD EXPO ULL memory kits is their ability to maintain tight timings at reduced voltages. The Trident Z5 NeoX runs at a consistent 1.35V across its entire product stack. This voltage is notably lower than the 1.45V or 1.40V required by the Trident Z5 Neo series. Lower DRAM voltages translate to lower power consumption, lower operating temperatures, and more headroom for overclocking.
If you’re looking for the simplest explanation as to why AMD EXPO ULL memory kits carry a hefty premium over regular AMD EXPO memory kits, it boils down to the extensive optimization and meticulous binning process involved in their production. Memory vendors spend more time testing and sorting memory chips that can operate at the tightest timings and lowest voltages. It’s a very time-consuming and labor-intensive process. As a result, the overall manufacturing costs for EXPO ULL kits are higher than for standard kits. In many ways, you aren’t just paying a premium for the hardware itself, but also for the vendor’s time and the guarantee that the memory modules run at near-maximum potential right out of the box.
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