G.SKILL 16GB (2x8GB) TridentZ DDR4 3866MHz F4-3866C18D-16GTZSW RAM

Name: G.SKILL 16GB (2x8GB) TridentZ DDR4 3866MHz F4-3866C18D-16GTZSW
Brand: G.Skill
SKU: F4-3866C18D-16GTZSW
Rating: 4.0 (88 reviews)

G.SKILL 16GB (2x8GB) TridentZ DDR4 PC4-30900 3866MHz F4-3866C18D-16GTZSW

★★★★☆

(88 reviews)

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Series: Tridentz Series
Capacity: 16GB (2 X 8GB), Type: 288-Pin DDR4 SDRAM, Speed: DDR4 3866Mhz PC4-30900
Cas Latency: 18, Voltage: 1.35V
ECC: No, Buffered/Registered: Unbuffered, Multi-Channel Kit: Dual Channel Kit

G.SKILL 16GB (2x8GB) TridentZ DDR4 3866MHz F4-3866C18D-16GTZSW image 1

Specifications Overview

Model	F4-3866C18D-16GTZSW
Type	288-pin DDR4 DIMM
Speed	DDR4-3866 MHz
Size	16GB (2 x 8GB)
CAS Latency	18
Timing	18-19-19-39
First Word Latency	9.31 ns
Voltage	1.35 V
Heat Spreader	Yes
ECC Support	No
Color	Silver/White
Samsung B-Die	Yes

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C

RAM First Word Latency Table (nanoseconds)

Latency is measured in nanoseconds, which is a combination of frequency and CAS. Both frequency increases and latency decreases result in better system performance (when latency is the same, always prefer higher frequency if possible).

Frequency (MT/s)

	3333	3400	3466	3600	3666	3733	3800	3866	4000	4133	4200	4266	4300	4333
16	9.60	9.41	9.23	8.89	8.73	8.57	8.42	8.28	8.00	7.74	7.62	7.50	7.44	7.39
17	10.20	10.00	9.81	9.44	9.27	9.11	8.95	8.79	8.50	8.23	8.10	7.97	7.91	7.85
18	10.80	10.59	10.39	10.00	9.82	9.64	9.47	9.31	9.00	8.71	8.57	8.44	8.37	8.31
19	11.40	11.18	10.96	10.56	10.37	10.18	10.00	9.83	9.50	9.19	9.05	8.91	8.84	8.77
20	12.00	11.76	11.54	11.11	10.91	10.72	10.53	10.35	10.00	9.68	9.52	9.38	9.30	9.23
21	12.60	12.35	12.12	11.67	11.46	11.25	11.05	10.86	10.50	10.16	10.00	9.85	9.77	9.69
22	13.20	12.94	12.69	12.22	12.00	11.79	11.58	11.38	11.00	10.65	10.48	10.31	10.23	10.15
23	13.80	13.53	13.27	12.78	12.55	12.32	12.11	11.90	11.50	11.13	10.95	10.78	10.70	10.62
24	14.40	14.12	13.85	13.33	13.09	12.86	12.63	12.42	12.00	11.61	11.43	11.25	11.16	11.08
25	15.00	14.71	14.43	13.89	13.64	13.39	13.16	12.93	12.50	12.10	11.90	11.72	11.63	11.54

CAS (clock cycles) Lower latency means faster memory.

Distribution of First Word Latencies for Similar RAM Modules

The histogram below shows the distribution of first word latencies (in nanoseconds) for all RAM modules of the same DDR type and frequency in our database. Each bar represents the number of modules that fall within a specific latency range. The highlighted bar indicates the latency of the currently selected RAM module.