Instrukcja obsługi Corsair Vengeance LED 4x8GB DDR4-2133

Corsair Niesklasyfikowane Vengeance LED 4x8GB DDR4-2133

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Corsair Vengeance LED 4x8GB DDR4-2133 (8 stron) w kategorii Niesklasyfikowane. Ta instrukcja była pomocna dla 12 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

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D D R 4 W H I T E P A P E R

DDR4 W HI TE PAP E R

Introduction

DDR3 has been with us for a long time, and Corsair has been there pushing the bleeding

edge of performance, cooperating with Intel, AMD, and motherboard manufacturers to

produce the fastest memory consumers can buy. Yet DDR3 is getting long in the tooth

and modern processor architectures are becoming increasingly demanding. When today’s

hardware needs exotic, high-speed, carefully binned memory, it’s time to look to a new

technology.

Introduced in conjunction with Intel’s new high end desktop platform based on their

Haswell-E architecture and the X99 chipset, DDR4 is designed to meet the needs of

present and future platforms. It oers higher performance, lower power consumption,

higher density, increased reliability, and a remarkably forward-thinking design geared for

heretofore unprecedented scaling. In short, DDR4 is the memory technology we need, now

and for tomorrow.

The Demands of Modern Hardware

While Moore’s Law has slowed somewhat for x86 processors, the steady march of progress

in terms of both performance and hardware integration has resulted in a hardware

ecosystem that is very slowly reaching the limits of what can be achieved with DDR3.

Increasingly powerful x86 cores are now being married with substantially powerful graphics

hardware on a single die, boosting the stress placed on the memory bus and raising the

amount of memory bandwidth needed to keep these new integrated processors fed.

With Intel’s Haswell and AMD’s Kaveri architectures, we are seeing more and more

situations where performance can be bottlenecked by a lack of memory bandwidth.

Content creation (CAD, video editing, et al) continues to need as much memory capacity

as possible. Meanwhile, mobile devices (notebooks, tablets) focus more and more on power

eciency. All of this, to say nothing of the ever escalating demands on enterprise and

server hardware, hardware that often requires as much bandwidth and capacity as can be

delivered while needing to reduce power consumption wherever possible.

The demands of current and future hardware and software architectures can be met with

DDR4.

The History of DDR3

To understand DDR4, we need to have at least a working knowledge of the history of

DDR3. With rare exception, introductions of new memory standards operate cyclically.

When the original double data rate (DDR) memory was introduced, users were still working

with SDRAM running at 133MHz, and the beneﬁts of moving to this faster standard were

limited. The outgoing technology will always be more mature and have a better price-to-

performance ratio than its successor at time of launch; this was true of the transition from

DDR to DDR2 and again from DDR2 to DDR3.

DDR4 W HI TE PAP E R

Figure 1: Operating voltage of DDR standards.

DDR3 was introduced in 2007, and at the time, DDR2’s eective mainstream speed had

standardized at 800MHz with JEDEC’s peak spec at 1066MHz. DDR3’s introductory

speeds were 800MHz and 1066MHz, but performance could actually be slightly lower in

some instances due to higher latency. Yet DDR2 was a mature technology and at its limit;

mainstream DIMM density topped out at 4GB and operating voltage was between 1.8V and

2.5V.

DDR3 was more forward thinking; speciﬁed voltage was 1.5V, speeds were designed to

scale well past 1066MHz, and Intel (working with Corsair) created and incorporated the

XMP speciﬁcation that allowed end users to easily ﬁne tune speeds and timings for high

performance memory. So while DDR2 had a better value proposition when DDR3 launched,

it was quickly eclipsed by the new speciﬁcation’s headroom.

Figure 2: A history of DDR SDRAM memory speeds.

Seven years later, JEDEC has speciﬁed DDR3 speeds all the way up to 2133MHz,

mainstream DIMM density is 8GB (with server DIMMs at 16GB), and an adjoining DDR3L

standard has been adopted that operates at a reduced 1.35V. High performance DDR3 even

exceeds 2133MHz; internal Corsair testing has seen Intel Haswell processors show continued

performance beneﬁts up to 2400MHz, while the GCN-architecture graphics cores powering

AMD’s Kaveri processors are demonstrably bottlenecked even then. While the mainstream

has settled on 1600MHz as the standard speed for DDR3 and Corsair memory continues

to drive speeds well beyond that, it is possible to be performance limited by even exotic

2400MHz memory on current generation hardware. Beyond that speed price can increase

dramatically, reﬂecting the careful binning of ICs that has to take place to produce those

extremely high speed DIMMs. DDR3 has scaled well beyond the performance of DDR2, but

is now approaching its own limits.

Specyfikacje produktu

Marka:	Corsair
Kategoria:	Niesklasyfikowane
Model:	Vengeance LED 4x8GB DDR4-2133

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