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Old 02-02-2008, 12:07   #1 (permalink)
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MSI Radeon R3870X2 OC - mic review

Am pus mana azi dimineata ( pe la 9 ) pe 2 MSI 3870X2 versiunea OC.

Placa e IMENSA - mai mare cu aproape 4 cm decat 8800GTXul meu, si cu greu am reusit sa o bag in carcasa, dar arata spectaculos. Incape intr-un Recom Xforce, precum si in carcasa mea de plexiglass.

- Frecventele placii sunt 860mhz core si 1802mhz memoriile.
- Consumul e relativ decent pentru o astfel de jucarie, in jur de 210w in full load. [EDITED] am inversat din graba.

In 3DMark 06 placa a scos 17000 pct pe sistemul din semnatura. Screenshot in 10 min... am niste probleme cu netu momentan.
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Old 02-02-2008, 12:25   #2 (permalink)
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Cum ai determinat consumul ?
 
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Old 02-02-2008, 13:33   #3 (permalink)
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am corectat acuma - consumul este de 210w nu 120 - am inversat din gresala 1 cu 2.

Consum total 15A pe rail - 2X railuri deci 30 A / 210w. Consum probat cu un PSU Load Tester de la Recom.

Aveti si niste screenshoturi cu staturi si un 3dmark06. Diseara pun si poze cu placile.

Nu am reusit sa le pun in cossfire, bifez optiunea, dau apply si dak intru din nou imi spune ca e oprit. E posibil sa am bios vechi pe PB - o sa incerc sa corectez problema.
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Old 02-02-2008, 16:05   #4 (permalink)
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nu am pus inca mana pe un Ultra, dar 3870X2 face varza GTXul.

Pentru fanii Nvidia exista un produs comparabil din seria 8800 dual gpu. Gasisem pe net dar nu mai am linkul.
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Old 02-02-2008, 18:45   #5 (permalink)
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Am sters offtopic-ul. Va rog ramaneti la subiect.

razz - mai multe detalii despre placa (performanta in jocuri, overclocking)? Daca ai face niste poze cu ea in carcasa ar fi ok (e un detaliu important)
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Old 03-02-2008, 00:20   #6 (permalink)
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Originally Posted by razzb3d View Post
nu am pus inca mana pe un Ultra, dar 3870X2 face varza GTXul.

Pentru fanii Nvidia exista un produs comparabil din seria 8800 dual gpu. Gasisem pe net dar nu mai am linkul.
9800gx2. Se pare ca-l mai intarzie insa nvidia. GTX-ul are totusi o varsta, e normal sa fie depasit eventual Cum merge memoria la OC, ca afaik e ddr3, nu ddr4?
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Old 03-02-2008, 08:46   #7 (permalink)
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mem e ddr 3. Am reusit sa o duc la 2000 stabil. Coreul duce 880. Momentan nu am cu ce sa fac poze - k850ul meu a luat o gura de pepsi si nu ii mai merge camera...
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Old 03-02-2008, 08:46   #8 (permalink)
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Te cam limiteaza procesorul (Phenom 9900), in mod normal placa scoate peste 18000 cu un Quad Core de la Intel. Totusi nu este un scor asa mare, el a putut fi atins cu placi single GPU (8800GTS 512 MB), este drept ca cu un overclock serios la sistem, dar si cu 2xHD3870 (deci cam acelasi drac), ai rezultate autohtone aici si aici. Uite aici un HD3870X2 pe un QX9650 overclockat. Se pare ca 9800GX2 va scoate atat default dupa cum o lauda Nvidia si un 8800GTX in conditii extreme.
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Old 03-02-2008, 10:30   #9 (permalink)
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Poti incerca si driverele astea, din cate stiu sunt mai noi decat 8.1.
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Old 03-02-2008, 10:40   #10 (permalink)
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Dsaraolu - 10x pt imput - dar majoritatea din screenshoturile alea nu sunt relevant din 2 motive:

1. Nu toata lumea are procesor de 30 mil

2. Nu toata lumea isi duce Q6600ul peste 4 ghz, situatie in care procul nu este perfect stabil (stiu din experienta) desi poate rula Orthos zile in sir. Poti observa acest lucru incercand sa rulezi aplicatii cu instructiuni complexe (cum ar fii Crysis sau Audtodesk netrender) si o sa observi ca dupa 5 min de joc sistemul o sa crape sau o sa iasa in windows. Deci - pentru ceea ce fac eu - overclockul extrem nu este o solutie.

3. In cazurile de mai sus scorul in 3Dmark 06 este format 35% din scorul procesorului - lucru care pe noi NU ne intereseaza cand evaluam o placa video.

Mentiune - Eu momentan rulez sistemul cu un errata patch - dupa cum stiti unele procesoare Phenom au o problema - nu stiu exact in ce consta dar am auzit ca sunt 5% sanse sa apara probleme intr-un sistem cu CPU phenom. Imi rescriu biosul acum si o sa scot patcul - dupa care o sa dau un alt 3Dmark.

Poza cu placa video mai jos :
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Old 03-02-2008, 11:29   #11 (permalink)
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Mda... se pare ca patchul pt errata e o porcarie infecta.... NU IL INSTALATI.

Benchul e facut cu CPU la 3150 mhz (multiplicatorul la x15 si fsb la 210mhz) si memoria la 840 mhz CL 4-5-4-10 2T @ 2.1v

[EDITED] Am schimbat poza - eram pe dual monitor si era stresant
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Rig 1: |Intel C2Q Q9550 @ 3,4ghz on Cooler Master Hyper TX2 |MSI P35 Platinum|4x1024MB DDR2 MusKin 800mhz 4-5-4-11|3870 X2|4xSamsung 500gb|Termaltake Soprano|Muskin Enhanced 650w||
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Old 03-02-2008, 11:34   #12 (permalink)
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Quote:
Originally Posted by razzb3d View Post
In cazurile de mai sus scorul in 3Dmark 06 este format 35% din scorul procesorului - lucru care pe noi NU ne intereseaza cand evaluam o placa video.
Eronat, ca sa-ti dai seama diferenta intre un dual core si un quad core in 3DMark 2006 nu-ti aduce decat ~1000 puncte in plus la scorul total la un 8800GT de exemplu (adica ~14000 in loc de ~13000), dar punctajul CPU este de la simplu la dublu, deci importanta CPU-ului in scorul total este mult mai mica de 35%.

Un benchmark in Crysis se poate? Adica ceva ca in printscreen.
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Last edited by dsaraolu; 03-02-2008 at 11:47..
 
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Old 03-02-2008, 11:39   #13 (permalink)
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se pare ca tu nu ai inteles despre ce e vorba.

UNDE am zis eu ca e vorba de dual core dau quad core??

Am zis ca punctajul scos de PROCESOR (orice procesor) este in jur de 35% din scorul total in 3dmark 06

In acele screenshoturi ai scorul impartit in 3 parti - SM2.0, HRSM3.0 si CPU SCORE. Se face un raport intre acestea si rezulta scorul total.

Iti pot demonstra cu testul facut pe PCul colegului de apt - A64 X2 3800+ / 2gb ddr800 corsair / Forton 700w / MSI 3870X2 ( a 2a placa e la el in PC - mie tot nu imi merg in crossfire) - rezultatul e in jur de 15000 pct - asa mi-am dat seama ca ceva e in neregula. Era diferenta prea mica intre scoruri.
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Old 03-02-2008, 11:46   #14 (permalink)
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Omule chiar nu intelegi ca punctajul scos de procesor este mult mai mic decat spui tu. Un Quad Core overclockat cu 200 MHz mai mult iti aduce de pilda doar 50-100 de puncte in plus in scorul total, asa poate intelegi. Studiaza algoritmul de calcul al scorului final si o sa vezi ca nu ai dreptate.
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Old 03-02-2008, 11:47   #15 (permalink)
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Pai el ti-a dat un exemplu, 100% in plus la CPU score dau ~7% in plus la scorul total. Daca ar fi fost CPU 35% din scorul total trebuia sa creasca scorul cu 35%
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Old 03-02-2008, 11:50   #16 (permalink)
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Atunci explica diferenta dintre cele 2 scoruri - Inainte si dupa ce am scos patchul. Si diferenta mare de scoruri intre cele 2 sisteme.

Alt exemplu - Sistemul 2 din semnatura: Scoate 13500 pct pe 2900XT la 3600mhz (8x 450) si 10000 pct stock. Eu vad diferenta de aproape 35%. - Raport observat pe o configuratie similara - Q6600 - 8800GT.

Help me out here
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Old 03-02-2008, 13:20   #17 (permalink)
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Deci scorul din 3Dmark06 se calculeaza asa : [ ( 1.7 / ( SM2.0 + HDR/SM3.0 ) * 0.5 ) ] + [ ( 0.3 / CPU Score ) ] / 2.

+ daca ai procesor mai preformant, ai SM2.0 si HDR/SM3.0 mai ridicat.
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Old 03-02-2008, 13:55   #18 (permalink)
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M3kk -aham merci pt lamurire '

Dsaraolu
- zi ce utilitar sa folosesc si dau un bench
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Old 03-02-2008, 14:14   #19 (permalink)
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Atunci explica diferenta dintre cele 2 scoruri - Inainte si dupa ce am scos patchul. Si diferenta mare de scoruri intre cele 2 sisteme.
Daca procesorul este prea puturos ajunge sa infraneze placa video, de pilda un Quad Core la 2000-2400 MHz este mai slab decat un Dual Core la 3000-3200 MHz per total la scorul final.

Uite utilitarul aici. Merci.
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Old 03-02-2008, 15:22   #20 (permalink)
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Uite Crysis Benchmarkuri. Nu stiu de voi dar eu sunt impresionat.

Am testat 2900XT si 3870X2. Mi-a fost lene sa instalez si GTXul pentru ca trebuia sa schimb driverele si deja am facut varza prin casa si am demontat 2 calculatoare. Maine o sa pun si teste cu 3870 simplu pe acelasi sistem.

Poza 1 - benchmark 2900xt MSI
Poza 2 - benchmark 3870x2 MSI
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Rig 2: |AMD Athlon 1650LE @ 3,2ghz |ECS A690M2|2x1024MB DDR2 OCZ Platinum 800mhz 4-5-4-15|2600 PRO|2xWestern Digital 500gb|| -= 0724 223 299 =-
 
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