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Comparison Patriot Memory Signature DDR4 1x8Gb PSD48G266681 vs Crucial Value DDR4 1x8Gb CT8G4DFS824A

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Patriot Memory Signature DDR4 1x8Gb PSD48G266681
Crucial Value DDR4 1x8Gb CT8G4DFS824A
Patriot Memory Signature DDR4 1x8Gb PSD48G266681Crucial Value DDR4 1x8Gb CT8G4DFS824A
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Memory capacity8 GB8 GB
Memory modules11
Form factorDIMMDIMM
TypeDDR4DDR4
Memory ranksingle rank
Specs
Memory speed2666 MHz2400 MHz
Clock speed21300 MB/s19200 MB/s
CAS latencyCL19CL17
Memory timing19-19-19-4317-17-17
Voltage1.2 V1.2 V
Coolingno coolingno cooling
Module profilestandardstandard
Module height32 mm
Added to E-Catalogjuly 2018april 2016
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Patriot Signature Line 8GB DDR4 DRAM Module 2666 MHz PC4-21300 PSD48G266681

288-Pin Buffered Dual In-Line Memory Module (UDIMM) Frequency: 2666MHz (PC4-21300) Timings: 19-19-19-45 Capacity: 8GB (1x8... moreGB) RoHS Compliant, Form Factor: 288-Pin Unbuffered Dual In-Line Memory Module (UDIMM), Limited lifetime warranty
Amazon.co.uk
Delivery: to United Kingdom
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£19.49

Patriot PSD48G266681

Component for:PC/Server.CAS latency:19.Buffered memory type:Unregistered (unbuffered).Product colour:Green.Product colour:Bla... moreck.Internal memory:8 GB.Windows operating systems supported:Yes.Memory voltage:1.2 V.Memory layout (modules x size):1 x 8 GB.Memory form factor:288-pin DIMM.Supported memory types:DDR4-SDRAM.Memory clock speed:2666 MHz.Internal memory type:DDR4.ECC:No.Memory types supported by processor:DDR4-SDRAM.Weight:22 g.Height:31 mm.Width:133 mm.Depth:2.8 mm.Package depth:16 mm.Package weight:30.5 g.Package width:118 mm.Package height:180 mm.Harmonized System (HS) code:84733020.Sustainability certificates:RoHS.
Tradeinn.com
Delivery: in United Kingdom
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£12.99

Patriot Patriot Signature Line 8GB No Heatsink (1 x 8GB) DDR4 2666MHz DIMM System Memory SDPAT-PSD48G2681

Signature Line DDR4 8GB 2666MHz (PC4-21300) UDIMMPatriot's Signature Line DDR4 Non-ECC unbuffered memory delivers the quality... more, reliability and performance expected for todays mainstream computer needs. This 8GB is designed to run at PC4-21300 (2666MHz) at CAS 19 latency timings for better overall system responsiveness when using demanding application. Built using the highest quality components and hand tested, Patriot ensures every module meets and exceeds industry standards to offer you a hassle-free plug-and-play memory upgrade. With free customer service and a lifetime warranty, Patriots Signature Line DDR4 memory modules are the perfect option for any PC system build or upgrade for faster performance.Memory Capacity8GB (1 x 8GB)Memory TypeDDR4Module TypeDIMMMemory SpeedDDR4-2666MHzPin Configuration288-pinRegistered/UnbufferedUnbufferedError CorrectionNon-ECCCL-tRCD-tRP-tRAS19-19-19-43Heat SinkNoWorking Voltage1.2V
Backtotheoffice.co.uk
Delivery: in United Kingdom
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£21.99

Patriot Memory 8GB DDR4 2666MHz memory module 1 x 8 GB PSD48G266681

Signature Line DDR4 8GB 2666MHz (PC4-21300) UDIMM Patriot?s Signature Line DDR4 Non-ECC unbuffered memory delivers the qua... morelity reliability and performance expected for today?s mainstream computer needs. This 8GB is designed to run at PC4-21300 (2666MHz) at CAS 19 latency timings for better overall system responsiveness when using demanding application. Built using the highest quality components and hand tested Patriot ensures every module meets and exceeds industry standards to offer you a hassle-free plug-and-play memory upgrade. With free customer service and a lifetime warranty Patriot?s Signature Line DDR4 memory modules are the perfect option for any PC system build or upgrade for faster performance. Memory Capacity 8GB (1 x 8GB) Memory Type DDR4 Module Type DIMM Memory Speed DDR4-2666MHz Pin Configuration 288-pin Registered/Unbuffered Unbuffered Error Correction Non-ECC CL-tRCD-tRP-tRAS 19-19-19-43 Heat Sink No Working Voltage 1.2V
Quzo.co.uk
Delivery: to United Kingdom
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£22.10

Patriot Memory PSD48G26662 8GB DDR4 2666MHz RAM Memory S9189470

Brand RAM Memory Patriot Memory Color: Patriot Memory PSD48G26662 8GB DDR4 2666MHz RAM Memory Dimensions: 1 x 6 x 17 cm Re... moreference: S9189470 If what you want is quality at the best price do not keep looking!
Amazon.co.uk
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£42.79
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Memory rank

The number of ranks provided in the memory bar.

The rank in this case is called one logical module — a chipset with a total capacity of 64 bits. If there is more than one rank, this means that several logical ones are implemented on one physical module, and they use the data transmission channel alternately. A similar design is used in order to achieve large amounts of RAM with a limited number of slots for individual brackets. At the same time, it should be said that for consumer computers, you can not pay much attention to the memory rank — more precisely, peer-to-peer modules are quite enough for them. But for servers and powerful workstations, two-, four- and even eight-rank solutions are produced.

Note that other things being equal, a larger number of ranks allows achieving larger volumes, however, it requires more computing power and increases the load on the system.

Memory speed

The clock frequency of the RAM module.

The higher this indicator, the faster the “RAM” works, other things being equal, the higher its efficiency in games and other resource-intensive applications. On the other hand, a high clock frequency has a corresponding effect on the cost. In addition, in order to use the full capabilities of the memory, the motherboard to which the module is connected must support the appropriate frequency.

The most popular are modules with a frequency of 3200 and 3600 MHz - so to speak, universal workhorses. There are also more modest options - for example 2400, 2666, 2800, 2933, 3000 MHz. And advanced for serious tasks - 3866, 4000, 4800, 5200, 5600 MHz. High-frequency modules 6000, 6400, 6600, 6800, 7000, 7200 MHz and more are also provided.

Clock speed

The amount of information that a memory module can receive or transmit in one second. The speed of the memory and, accordingly, the price of it directly depend on the bandwidth. At the same time, this is a rather specific parameter, which is relevant mainly for high-performance systems — gaming and workstations, servers, etc. If the RAM module is bought for a regular home or office system, you can not pay much attention to bandwidth.

CAS latency

This term refers to the time (more precisely, the number of memory cycles) that passes from the processor's request to read data to granting access to the first of the cells containing the selected data. CAS latency is one of the timings (for more details, see the "Memory Timings Scheme" section, where this parameter is designated as CL) — which means that it affects performance: the lower the CAS, the faster this memory module works. However this is true only for the same clock frequency (for more details, see ibid.).

Now there are memory modules on the market with the following CAS latency values: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 30, 32, 36, 38, 40, 42, 46.

Memory timing

Timing is a term that refers to the time it takes to complete an operation. To understand the timing scheme, you need to know that structurally RAM consists of banks (from 2 to 8 per module), each of which, in turn, has rows and columns, like a table; when accessing memory, the bank is selected first, then the row, then the column. The timing scheme shows the time during which the four main operations are performed when working with RAM, and is usually written in four digits in the format CL-Trcd-Trp-Tras, where

CL is the minimum delay between receiving a command to read data and the start of their transfer;

Trcd — the minimum time between the selection of a row and the selection of a column in it;

Trp is the minimum time to close a row, that is, the delay between the signal and the actual closing. Only one bank line can be opened at a time; Before opening the next line, you must close the previous one.

Tras — the minimum time the row is active, in other words, the shortest time after which the row can be commanded to close after it has been opened.

Time in the timing scheme is measured in cycles, so the actual memory performance depends not only on the timing scheme, but also on the clock frequency. For example, 1600 MHz 8-8-8-24 memory will run at the same speed as 800 MHz 4-4-4-12 memory—in either case timings, if expressed in nanoseconds, will be 5-5-5-15.
Patriot Memory Signature DDR4 1x8Gb often compared
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