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GDDR5 by Qimonda - 12-05-08, 19:14

Untuk saat ini, Memory clock yang terdapat pada sebuah GPU hanya sebatas 2Gb/s. Namun apa yang terjadi jika ada 2 kali lipatnya?

ATI Radeon dengan GDDR4 atau Nvidia dengan GDDR3, Qimonda berencana untuk merilis chips dengan GDDR5.

Chips yang akan dibuat oleh Qimonda akan mampu berlari pada frekuensi 3.60 GHz, 4.0 Ghz, 4.6 Ghz.

Hynix Semiconductor dan Samsung Electronic juga ikut campur tangan dalam pembuatan chips ini.






Source {H}

gelo...makin hari makin gelo

Last edited by be9al : 12-05-08 at 22:12.
   
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13-05-08, 10:38

Quote:
mampu berlari pada frekuensi 3.60 GHz, 4.0 Ghz, 4.6 Ghz


bandwidth nya pasti GILA
   
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13-05-08, 11:01

Yg make duluan ati ato nvidia ya?
Pasti performanya tambah gila.....





   
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13-05-08, 11:08

^ klo performa belum tentu gila
dia cuma ngasih Memory Bandwidth kok
performa keseluruhan tetep ada pada "formula" dan arsitektur GPU
baca ini bro: How to Calculate GPU power (Stream Processor era)
   
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13-05-08, 19:47

iya, yg penting chipset-nya jg. Cthnya kl DDR5 tp chipsetnya x1650, emang bisa lari kencang??
   
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22-05-08, 16:02

ternyata ATI duluan yg ngelirik

AMD Looks to Qimonda For GDDR5 Memory
   
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22-05-08, 16:51

jangan terkecoh ama embel2 DDR2, DDR3, DDR4, DDR5
itu sebenarnya hanya cara untuk membantu bandwidth GPU kok
AMD emang harus ambil GDDR5 karena HD4870 mereka cuma make 256bit
sedangkan Nvidia cukup make GDDR3 karena upcoming GTX 280 udah make 512bit
sekali lagi ini HANYA masalah jalur bandwidth kok, hanya pendukung

belum tentu yang make GDDR5 itu kenceng bandwidthnya


as I said, mohon dipahami dan dimengerti
makin cepet speed DDR itu kan cuma bantu kasih bandwidth aja sebenarnya
masalah data yang lewat besar ato kecil kan juga bergantung kemampuan core GPU
misal 512bit make DDR3 speed 2050MHz
there's (512*2050)/8 = 130GB/s bandwidth

mungkin make DDR5 bisa bengkak di harga beli IC GDDR5
tapi menurunkan cost research make interface 512bit
misal make 256bit tapi dengan DDR5 4000MHz (denger2 GDDR5 antara 3600MHz ampe 4600MHz)
there's (256*4000)/8 = 128GB/s bandwidth


gitu aja kok
sisi lain tampak sok mewah make GDDR5
tapi pada prakteknya hanya memberikan bandwidth yang lebih lebar
dengan interface yang lebih kecil (let's say 256bit) .... you know kan, 512bit bus interface itu minta ampun boros energi buang biaya

Last edited by becco : 22-05-08 at 16:56.
   
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22-05-08, 16:56

seep, thank u deh atas info nya
   
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