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Tópico: Memórias DDR5

  1. #1
    Master Business & GPU Man Avatar de Enzo
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    Ideias sem Nexo e Provas do Tráfico de Hardware
    "que personifica o destino, equilíbrio e vingança divina." Dejá vú. Que cena!

  2. #2
    Moderador Avatar de Winjer
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    DDR5 has arrived! Micron’s next-gen DIMMs are 85% faster than DDR4

    Feature/Option DDR4 DDR5 DDR5 Advantage
    Data rates 1600-3200 MT/s 3200-6400 MT/s Increases performance and bandwidth
    VDD/VDDQ/VPP 1.2/1.2/2.5 1.1/1.1/1.8 Lowers power
    Internal VREF VREFDQ VREFDQ, VREFCA, VREFCS Improves voltage margins, reduces BOM costs
    Device densities 2Gb-16Gb 8Gb-64Gb Enables larger monolithic devices
    Prefetch 8n 16n Keeps the internal core clock low
    DQ receiver equalization CTLE DFE Improves opening of the received DQ data
    eyes inside the DRAM
    Duty cycle adjustment (DCA) None DQS and DQ Improves signaling on the transmitted DQ/DQS pins
    Internal DQS delay
    monitoring
    None DQS interval oscillator Increases robustness against environmental changes
    On-die ECC None 128b+8b SEC, error check and scrub Strengthens on-chip RAS
    CRC Write Read/Write Strengthens system RAS by protecting read data
    Bank groups (BG)/banks 4 BG x 4 banks (x4/x8)
    2 BG x 4 banks (x16)
    8 BG x 2 banks (8Gb x4/x8)
    4 BG x 2 banks (8Gb x16)
    8 BG x 4 banks (16-64Gb x4/x8)
    4 BG x 4 banks (16-64Gb x16)
    Improves bandwidth/performance
    Command/address interface ODT, CKE, ACT, RAS,
    CAS, WE, A
    CA<13:0> Dramatically reduces the CA pin count
    ODT DQ, DQS, DM/DBI DQ, DQS, DM, CA bus Improves signal integrity, reduces BOM costs
    Burst length BL8 (and BL4) BL16, BL32
    (and BC8 OTF, BL32 OTF)
    Allows 64B cache line fetch with only 1 DIMM subchannel.
    MIR (“mirror” pin) None Yes Improves DIMM signaling
    Bus inversion Data bus inversion (DBI) Command/address inversion (CAI) Reduces VDDQ noise on modules
    CA training, CS training None CA training, CS training Improves timing margin on CA and CS pins
    Write leveling training modes Yes Improved Compensates for unmatched DQ-DQS path
    Read training patterns Possible with the MPR Dedicated MRs for serial
    (userdefined), clock and LFSR
    -generated training patterns
    Makes read timing margin more robust
    Mode registers 7 x 17 bits Up to 256 x 8 bits
    (LPDDR type read/write)
    Provides room to expand
    PRECHARGE commands All bank and per bank All bank, per bank, and same bank PREsb enables precharging-specific bank in each BG
    REFRESH commands All bank All bank and same bank REFsb enables refreshing of specific bank in each BG
    Loopback mode None Yes Enables testing of the DQ and DQS signaling
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  3. #3
    Moderador Avatar de Winjer
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    SK hynix Launches World’s First DDR5 DRAM


    SK hynix’s DDR5 supports transfer rate of 4,800 ~ 5,600 Megabit-per-second (Mbps), which is 1.8 times faster than the previous generation – DDR4. It can transmit 9 full-HD (FHD) movies (5GB each) per second with 5,600Mbps transfer rate. Its operating voltage is 1.1V being lowered from 1.2V of DDR4, which means that its power consumption is reduced by 20%.
    Another notable specification of the Company’s DDR5 is Error Correcting Code (ECC) inside the chip that can correct even 1-bit-level errors by itself. With the ECC, the reliability of applications will be increased by 20 times. The Company’s DDR5 also could build up to 256 Gigabyte (GB) capacity applying through-silicon-via (TSV) technology.


    E assim começa, primeiro para servidores e daqui a um ano já deve estar no mercado de consumo.
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  4. #4
    O Administrador Avatar de LPC
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    Citação Post Original de Winjer Ver Post
    SK hynix Launches World’s First DDR5 DRAM




    E assim começa, primeiro para servidores e daqui a um ano já deve estar no mercado de consumo.
    Boas!
    Seguindo a lógica anterior, as latências vão continuando a subir conforme as frequencias aumentam...

    É espectavel que venhamos a ter DDR5 a 1ghz sendo no entanto o sweet spot os 6400mhz cl28 como aconteceu agora com os 3200mhz cl14.

    Cumprimentos,

    LPC
    My Specs: .....
    CPU: AMD Ryzen 7 5800X3D :-: Board: MSI B550M BAZOOKA :-: RAM: 64 GB DDR4 Kingston Fury Renegade 3600 Mhz CL16 :-: Storage: Kingston NV2 NVMe 2 TB + Kingston NV2 NVMe 1 TB
    CPU Cooling Solution: ThermalRight Frost Commander 140 Black + ThermalRight TL-C12B-S 12CM PWM + ThermalRight TL-C14C-S 14CM PWM :-: PSU: Corsair HX 1200 WATTS
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    GPU: SAPPHIRE
    NITRO+ AMD RADEON RX 7800 XT - 16 GB :-: Monitor: BenQ EW3270U 4K HDR


  5. #5
    Moderador Avatar de Winjer
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    Na realidade as latência não têm subido.
    Apenas os valores dos timmings.
    O tempo de execução de cada operação da ram tem sido igual, ou em alguns casis, tem baixado.
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  6. #6
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    Citação Post Original de Winjer Ver Post
    Na realidade as latência não têm subido.
    Apenas os valores dos timmings.
    O tempo de execução de cada operação da ram tem sido igual, ou em alguns casis, tem baixado.
    Boas!
    Tinha a ideia que os ciclos de processamento tinham aumentado com os timmings mais relaxados.
    Tens a certeza que o tempo de processamento é o mesmo numa 1600 cl9 ou cl10 vs 3200 cl16 (normal agora)?

    Sei que tinhas uns dados de optimização que mostravam o tempo por ciclo...

    Cumprimentos,

    LPC
    My Specs: .....
    CPU: AMD Ryzen 7 5800X3D :-: Board: MSI B550M BAZOOKA :-: RAM: 64 GB DDR4 Kingston Fury Renegade 3600 Mhz CL16 :-: Storage: Kingston NV2 NVMe 2 TB + Kingston NV2 NVMe 1 TB
    CPU Cooling Solution: ThermalRight Frost Commander 140 Black + ThermalRight TL-C12B-S 12CM PWM + ThermalRight TL-C14C-S 14CM PWM :-: PSU: Corsair HX 1200 WATTS
    Case: NZXT H6 FLOW :-: Internal Cooling: 4x ThermalRight TL-C12B-S 12CM PWM + 4x ThermalRight TL-C14C-S 14CM PWM
    GPU: SAPPHIRE
    NITRO+ AMD RADEON RX 7800 XT - 16 GB :-: Monitor: BenQ EW3270U 4K HDR


  7. #7
    Moderador Avatar de Winjer
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    Essas 1600 MT/s a CL 9 têm um tempo de execução de 11.25ns; a CL10 fica a 12.5ns
    Mas essas 3200Mt/s CL16 têm um tempo de execução de 10ns.

    Como vês, essas DDR4 3200 a CL16 têm menos latência do que as 1600 a CL9.

    Para as DDR5 a 6400MT/s terem a mesma latência (10ns) que as DDR4 a 3200MT/s, é preciso terem um CL de 32.
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  8. #8
    Moderador Avatar de Winjer
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    TeamGroup now validating first consumer DDR5 memory modules

    TeamGroup has stated today that they are the first DRAM company to enter the validation process of a consumer DDR5 memory module and are currently working with motherboard manufacturers to finalize the long-awaited chips. The DRAM modules are slated for a Q3 2021 release, but they must have CPU support, which won't be featured by AMD or Intel chips until Q4 or beyond.

    TeamGroup has announced today that it is the first DRAM producer to enter the validation process of a consumer-grade DDR5 memory module. The company stated they are working closely with the R&D divisions of motherboard manufacturers to perform validation tests on their chips and finalize consumer-facing clock speeds. These first sticks will contain 16GB chips running at 4800MHz at 1.1V per module.
    SK Hynix was the company to launch the first DDR5 DRAM modules back in early October, but these were for enterprise use. We will likely see other manufacturers come out with their consumer-facing products soon.

    DDR5 is expected to reduce power consumption and double bandwidth relative to DDR4, as well as some other significant improvements under the hood. Clock speeds should see a dramatic improvement as well, with SK Hynix stating in April that it was working on a DDR5-8400 module. But these won’t be released for some time, and the first few modules probably won’t peak over 6000 MHz.
    If you are planning a build in the coming months, though, do not hold out for DDR5. Support for the next-gen memory is quite far-off, rumored to release with Alder Lake in Q4 next year and with AMD’s Zen 4 in 2022.
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  9. #9
    Moderador Avatar de Winjer
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    Mass production of DDR5 memory starts

    oday Jiahe Jinwei, a company better the fourth largest memory manufacturer in China has publically announced that DDR5 RAM from Micron has entered its facility. This marks the moment when the company is able to begin mass production of the new memory modules.
    Micron DDR5 memory, Source: MyDrivers
    The Chinese company is the owner of memory brands such as Guangwei or Asgard. The latter had recently made an announcement of its first DDR5 memory with capacities up to 128GB and 4800 MHz.
    The DDR5 memory will bring changes to the power requirements, capacities, error correction support, and overclocking. In comparison to the DDR4 standard, the DDR5 will consume less power, offer higher capacities and frequency as well as feature built-in power controllers, which as already announced will enable higher overclocking clock speeds.
    Intel is expected to launch the first DDR5 capable platform with its 12th Gen Core Alder Lake-S series later this year. The transition to DDR5 standard will take time thus Intel will be offering both DDR4 and DDR5 support through its new 600-series chipsets. This will ensure a smooth transition and more importantly a choice for gamers, who may not necessarily want to upgrade the memory just yet.
    AMD will also offer DDR5 capable platform featuring a new AM5 socket, which will be introduced alongside Zen4 CPUs. The manufacturer has so far made no public comments on a possible launch schedule of the new Ryzen series.
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  10. #10
    Tech Iniciado
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    Isto não para de evoluir.

  11. #11
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    Citação Post Original de JoseJoaquim Ver Post
    Isto não para de evoluir.
    Boas!
    O problema é que a DDR5 agora não será muito melhor que a actual DDR4.

    Sendo mais cara por ser novidade...

    Penso que no próximo ano, já deverá estar mais estabilizado...

    Vamos a ver como se comporta o novo sistema da Intel.

    É já amanhã que sai para o público...

    Cumprimentos,

    LPC
    My Specs: .....
    CPU: AMD Ryzen 7 5800X3D :-: Board: MSI B550M BAZOOKA :-: RAM: 64 GB DDR4 Kingston Fury Renegade 3600 Mhz CL16 :-: Storage: Kingston NV2 NVMe 2 TB + Kingston NV2 NVMe 1 TB
    CPU Cooling Solution: ThermalRight Frost Commander 140 Black + ThermalRight TL-C12B-S 12CM PWM + ThermalRight TL-C14C-S 14CM PWM :-: PSU: Corsair HX 1200 WATTS
    Case: NZXT H6 FLOW :-: Internal Cooling: 4x ThermalRight TL-C12B-S 12CM PWM + 4x ThermalRight TL-C14C-S 14CM PWM
    GPU: SAPPHIRE
    NITRO+ AMD RADEON RX 7800 XT - 16 GB :-: Monitor: BenQ EW3270U 4K HDR


  12. #12
    Moderador Avatar de Winjer
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    Em termos de largura de banda, a DDR5 consegue ser quase duas vezes mais rápida do que a DDR4.
    Mas do que vi até agora, a maioria dos kits de DDR5 anda nos 12ns de latência real. Ainda não vi mais baixo que isto, mesmo com OC.
    Mas kits de DDR4 a fazer 8ns de latência real, é um pouco comum.
    Eventualmente, deve aparecer chips de DDR5 mais maduros, capazes de latências mais baixas.

    Normalmente, os CPUs ganham mais por causa de latência do que por largura de banda. Mas a largura de banda também ajuda.
    O Alder Lake suporta DDR4 e DDR5, por isso vai ser curioso ver a comparação.
    Mesmo com latência mais elevada, entre caches e controladores de memórias mais modernos, pode diluir a desvantagem de latência elevada.
    E aí a largura de banda pode ser mais importante. Especialmente com CPUs com muitos núcleos para alimentar.
    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  13. #13
    Moderador Avatar de Winjer
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    Ryzen R5 3700X / Noctua NH-D15 / B550 AORUS ELITE V2 / Cooler Master H500 Mesh / 16Gb DDR4 @ 3800mhz CL16 / Gigabyte RTX 2070 Super / Seasonic Focus GX 750W / Sabrent Q Rocket 2 TB / Crucial MX300 500Gb + Samsung 250Evo 500Gb / Edifier R1700BT


  14. #14
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    Citação Post Original de Winjer Ver Post
    Boas!
    Para já ainda não compensa devido ao preço bastante mais alto que as "boas" DDR4.

    E para já haver alguns ganhos em termos de banda, já temos que ir para as 6000+ para cima...

    Eu por exemplo só iria meter DDR5 que fosse 6400mhz CL32 por exemplo.

    No entanto pelo que vi existem com CL40 e mais...


    Mesmo para o Alder Lake apenas posso recomendar DDR4 para já...

    Cumprimentos,

    LPC
    My Specs: .....
    CPU: AMD Ryzen 7 5800X3D :-: Board: MSI B550M BAZOOKA :-: RAM: 64 GB DDR4 Kingston Fury Renegade 3600 Mhz CL16 :-: Storage: Kingston NV2 NVMe 2 TB + Kingston NV2 NVMe 1 TB
    CPU Cooling Solution: ThermalRight Frost Commander 140 Black + ThermalRight TL-C12B-S 12CM PWM + ThermalRight TL-C14C-S 14CM PWM :-: PSU: Corsair HX 1200 WATTS
    Case: NZXT H6 FLOW :-: Internal Cooling: 4x ThermalRight TL-C12B-S 12CM PWM + 4x ThermalRight TL-C14C-S 14CM PWM
    GPU: SAPPHIRE
    NITRO+ AMD RADEON RX 7800 XT - 16 GB :-: Monitor: BenQ EW3270U 4K HDR


 

 

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