G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz RAM

Name: G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz
Brand: G.Skill
SKU: F4-4000C19D-32GTZKK
Rating: 4.0 (80 reviews)

G.SKILL 32GB (2x16GB) TridentZ DDR4 PC4-32000 4000Mhz F4-4000C19D-32GTZKK

★★★★☆

(80 reviews)

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Brand G.SKILL Series Tridentz Series Model F4-4000C19D-32GTZKK
Capacity 32GB (2 X 16GB) Type 288-Pin DDR4 SDRAM Speed DDR4 4000 (PC4 32000) CAS Latency 19 Timing 19-19-19-39 Voltage 1.35V ECC No
Buffered/Registered Unbuffered Chipset Intel Z370 Color Black Heat Spreader Yes

G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz image 1

G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz image 2

G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz image 3

G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz image 4

G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz image 5

G.SKILL 32GB (2x16GB) TridentZ DDR4 4000Mhz image 6

Specifications Overview

Model	F4-4000C19D-32GTZKK
Type	288-pin DDR4 DIMM
Speed	DDR4-4000 MHz
Size	32GB (2 x 16GB)
CAS Latency	19
Timing	19-19-19-39
First Word Latency	9.5 ns
Voltage	1.35 V
Heat Spreader	Yes
ECC Support	No
Color	Black
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)

	3400	3466	3600	3666	3733	3800	3866	4000	4133	4200	4266	4300	4333	4400
16	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	7.27
17	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	7.73
18	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	8.18
19	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	8.64
20	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	9.09
21	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	9.55
22	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	10.00
23	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	10.45
24	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	10.91
25	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	11.36

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.