G.Skill Trident Z5 CK F5-8800C4255H24GX2-TZ5CK
- Capacity:
- 48GB (2x24GB)
- Speed:
- 8800 MT/s
- Form Factor:
- CUDIMM
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Manufacturer: G.Skill Last updated: 2026-10-06
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G.Skill Trident Z5 CK F5-8800C4255H24GX2-TZ5CK Review
G.Skill Trident Z5 CK F5-8800C4255H24GX2-TZ5CK is a 48GB (2x24GB) DDR5-8800 CUDIMM desktop memory kit rated CL42 at 1.45V for Intel XMP 3.0 platforms.
One of the first CUDIMM (Clocked Unbuffered DIMM) kits on the market, built to push past the speed ceiling of standard UDIMMs on Intel's latest desktop platforms. Uses a single-rank SK hynix M-die configuration under a black aluminum heat spreader, with no RGB lighting on this variant (G.Skill also sells an RGB version under a related part number).
Why CUDIMM
CUDIMM modules add an onboard clock driver that re-times the command/address signal, letting desktop DDR5 kits reach speeds (8000MT/s+) that standard UDIMMs can't reliably hit. Currently supported by Intel's Z890 platform (Arrow Lake); AMD platform support was not confirmed at review time.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Intel Z890 high-refresh gaming builds
- Enthusiasts chasing maximum validated DDR5 speed
Not for
- AMD AM5 builds (CUDIMM support not confirmed on this platform)
- Budget builds
Specifications
What these specs meanHow fast this kit is among DDR5 kits, rated from its speed and latency.
Identity
| Peak Bandwidth | 140.8 GB/s |
|---|---|
| Brand | G.Skill |
| Part Number | F5-8800C4255H24GX2-TZ5CK |
| Series | Trident Z5 CK |
Memory
| DDR Generation | DDR5 |
|---|---|
| CAS Latency | 42 |
| Module Count | 2 |
Physical
| RGB Lighting | No |
|---|
Module and platform
| RAM Segment | Desktop DDR5 |
|---|---|
| Form Factor | CUDIMM |
| Buffering | Clocked |
| Platform Optimisation | Intel XMP |
Capacity
| Total Capacity | 48 GB |
|---|---|
| Capacity Per Module | 24 GB |
| Kit Type | Dual Channel Kit |
| Ranks Per Module | 1R |
Speed and timings
| Rated Speed | 8800 MT/s |
|---|---|
| Timing String | 42-55-55-140 |
Overclocking profile
| XMP Support | Yes |
|---|---|
| XMP Version | XMP 3.0 |
| Rated Voltage | 1.45 V |
Silicon
| Memory IC | SK hynix M-die |
|---|
Physical and lighting
| Colour | Black |
|---|
Commercial
| Warranty | Limited Lifetime |
|---|