Is DDR4-3200 CL16 still good for gaming? True latency and setup guide
DDR4-3200 CL16 is a widely available performance profile, but not the usual JEDEC timing. It is cheap and broadly compatible when the rated XMP or DOCP profile is enabled. Upgrading to a DDR4-3600 CL16 kit on the same board is a near-free speed bump with very little additional stability risk.
DDR4-3200 CL16 is a common XMP-class DDR4 performance profile. DDR4-3200 is the Ryzen 3000/5000 officially supported data rate, but standard JEDEC DDR4-3200 modules commonly use looser timings such as CL22. This CL16 preset's 10.00 ns first-word latency remains a useful reference point against DDR4 and DDR5 kits, including DDR5-6000 CL30.
By TechCompare · Updated
Calculator
RAM Latency Calculator
True Latency
First-word latency (CL)
10.00 ns
Time from a read command to the first bit of data arriving.
I/O bus clock
1600 MHz
Cycle time
0.625 ns
tRCD delay
11.25 ns
tRP delay
11.25 ns
tRAS
23.75 ns
tRC (tRP + tRAS)
35.00 ns
Assumes one 64-bit channel. Dual channel doubles this, quad channel quadruples it.
How this is calculated
At 1600 MHz bus clock, each cycle is 0.625 ns, 16 cycles of CL is 10.00 ns. Peak per-channel bandwidth is 25.6 GB/s, and dual-channel delivers 51.2 GB/s total. tRC (row cycle time) lands at 35.0 ns. Ryzen 3000/5000 Infinity Fabric runs in 1:1 ratio at DDR4-3200, which is why this particular spec is overrepresented in AMD build guides.
Verdict
The 1600 MHz bus clock puts the 16 cycles of CL on exactly 10.00 ns first-word, which is why this kit stays a useful reference point against DDR4 and DDR5 (DDR5-6000 CL30 matches it almost perfectly). Peak per-channel bandwidth lands at 25.6 GB/s with tRC at 35.0 ns. Ryzen 3000/5000 officially supports the 3200 MT/s data rate and many B-series and X-series AM4 boards can run this XMP or DOCP-class CL16 profile, but their standard JEDEC fallback may use looser timings. The upgrade path to DDR4-3600 CL16 on the same board is a near-free speed bump: ~11% higher bandwidth and the first-word latency drops to 8.89 ns, with FCLK ticking to 1800 MHz, which most Zen 3 chips hold without issue.
More DDR4 scenarios
Related guides
Frequently asked questions
Is DDR4-3200 CL16 fast enough for modern gaming?
Can you mix DDR4-3200 CL16 with different memory kits?
Is DDR4-3200 CL16 enough for a Ryzen 5000 build?
How much performance do I lose running a Ryzen 5000 on DDR4-3200 CL16?
Related tools
Memory and Storage Throughput Visualizer
Visualize the massive speed difference between CPU cache, RAM, and storage.
Use tool ➜Data Transfer Calculator
Estimate transfer times for files over USB, WiFi, Ethernet, and more.
Use tool ➜RAID Calculator
Calculate usable capacity and fault tolerance for RAID 0, 1, 5, 6, and 10.
Use tool ➜Power Cost Estimator
Estimate annual electricity costs for your PC, Server, or TV.
Use tool ➜