PC MemoryReviews

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review


System Configuration & Performance Testing


Testing Hardware:

  • Asus ROG Strix Z490-I Gaming
  • Intel Core i9-10900K
  • Kingston KC2000 1TB
  • 16GB (2x 8GB) Viper Blackout 4133MHz


Testing Software:

  • Microsoft Windows 10 Professional 21H1
  • Thaiphoon Burner
  • CPU-Z
  • AIDA64 Extreme Edition
  • Passmark Performance Test 10
  • SiSoft Sandra


CPU-Z is a freeware that gathers information on some of the main devices of your system:

  • Processor name and number, codename, process, package, cache levels.
  • Mainboard and chipset.
  • Memory type, size, timings, and module specifications (SPD).
  • Real-time measurement of each core’s internal frequency, memory frequency.

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 1

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 2

CPUz shows us we have two XMP profiles available, one at 4000MHz effective at 19-21-21-41 and the listed 4133MHz effective at 18-22-22-42 that we are running for our testing.


Thaiphoon Burner

Thaiphoon Burner is the number one solution on the software market to work with SPD firmware of DRAM modules of PC. Thaiphoon Burner provides powerful features for reading, modifying, updating, and reprogramming SPD firmware of SPD EEPROM devices. The program fully supports all popular JEDEC standards for Serial Presence Detects and third-party enhancements, such as NVIDIA EPP and Intel XMP. Comparing to other software Thaiphoon Burner creates the most completed reports for any of the following SDRAM types of DIMM modules: PC SDRAM, DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, DDR2 FB-DIMM, DDR4 SDRAM, LPDDR3, and LPDDR4. This is achieved due to the universal built-in SPD decoding engine.

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 3

Thaiphoon shows us Patriot is utilizing 8x of Samsung’s legendary B-die DRAM modules.

Here is the full readout if you want to look deep into the specs.


AIDA64 Engineer Edition

“AIDA64 Engineer has a hardware detection engine unrivaled in its class. It provides detailed information about installed software and offers diagnostic functions and support for overclocking. As it is monitoring sensors in real-time, it can gather accurate voltage, temperature, and fan speed readings, while its diagnostic functions help detect and prevent hardware issues. It also offers a couple of benchmarks for measuring the performance of individual hardware components or the whole system. It is compatible with all 32-bit and 64-bit Windows editions, including Windows 10 and Windows Server 2016.”

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 7

Bandwidth is mostly a function of raw speed so we expect the Blackout kit to be near the top of our chart and indeed it is.

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 8

A CAS latency of 18 at such a high speed makes for a very low overall latency.


Passmark Performance Test – Memory Mark – Threaded

“Fast, easy to use, PC speed testing, and benchmarking. PassMark Performance Test 10 allows you to objectively benchmark a PC using a variety of different speed tests and compare the results to other computers.”

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 9

Passmark’s Threaded Memory Test gives the 4133MHz Viper Blackout kit a score of over 54,000 points.


SiSoft Sandra

“SiSoftware Sandra provides a robust package of diagnostic tools for testing your system and teasing out its problems–or potential headaches.”

Viper Blackout DDR4 16GB 4133MHz Memory Kit Review 10

Our Blackout kit does quite well in SiSoft Sandra as well with its score just clearing the 44GB/s aggregated bandwidth mark.

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