Sapphire藍寶 Vapor-X HD 7970 3GB 顯卡 - 3C

冰魄戰將好讀版
http://www.xfastest.com/forum.php?mod=viewthread&tid=84399&fromuid=38227
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Sapphire藍寶科技是最率先運用Vapor Chamber(均熱版)在顯示卡散熱的品牌，
Vapor-X則是隨之誕生的散熱技術名稱，藉由均熱版能以平面的方式接觸迅速帶走熱量，
配合良好設計的散熱片可以輕鬆壓制顯示卡運作時所產生的高熱。
對應AMD目前最高階的HD 7970 GHz Edition，當然少不了Vapor-X登場的機會，
這回再加上Dual-X雙散熱風扇更是如虎添翼，
以下我們使用3GB的版本進行開箱介紹與效能實測。

包裝與配件
由於Vapor-X產品線在Sapphire的規劃裡定位幾乎算是最高階，
因此外盒採用燙銀色的底層塗裝，看起來格外精緻
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/01.jpg
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/02.jpg

配件有電源轉接縣、CrossFireX橋接器、DVI-I轉D-Sub訊號轉接頭
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/03.jpg

驅動軟體光碟與說明書
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/04.jpg

外觀與散熱
使用Dual-X雙散熱風扇設計，風扇直徑達90mm，導風罩造型類似層層相疊的閃電/箭頭狀
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/05.jpg

視訊輸出介面採用和NVIDIA GeForce 600系列高階機種一樣的配置，
有DisplayPort 1.2、HDMI 1.4a、DVI-I和DVI-D各一組，都是標準接頭
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/06.jpg

顯示卡頂端可見防彎鋼條設計，電源輸入使用6pin與8pin各1組
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/07.jpg

顯示卡背面可見導風罩寬度略微超過PCB，此空間可讓廢熱風流有明確的導向，
不會堆積在顯示卡週圍
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/08.jpg

卸下散熱器
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/09.jpg

與GPU的接觸面可不是一般銅底，而是均熱板的腔體
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/10.jpg
出了均熱板之外還動用了6mm和8mm的熱導管各兩根，其散熱效率可見一斑
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/11.jpg

PCB防彎鋼條與供電模組散熱片
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/12.jpg

用料細節
藍色亮面的PCB
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/13.jpg

Tahiti XT晶片本體
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/14.jpg

顯示記憶體採用hynix H5GQ2H24AFR-R0C 2Gb GDDR5顆粒，共12顆湊成3GB的容量
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/15.jpg

視訊輸出街頭內部的金屬遮罩可減少訊號干擾
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/16.jpg

8+2相數位供電設計
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/17.jpg
GPU使用8相供電，記憶體使用2相供電

PWM供電主控晶片為CHiL CHL8228G
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/18.jpg

PCB頂端設有BIOS切換器
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/19.jpg

性能實測
測試平台與環境
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/20.jpg
CPU: Intel Core i7-3770K @ 4.8GHz
Cooler: Antec KUHLER H2O 920 改2D冷排
Thermal Compound: Antec Formula 7
MB: ASUS ROG Maximus V Formula
RAM: Corsair Dominator Platinum DDR3-1866 4GB*2 @ 2400 MHz 10-12-12-30-1T
Graphic: Sapphire Vapor-X HD 7970 GHz Edition 3GB GDDR5
Storage: Adata XPG SX900 SSD 128GB
PSU: Antec HCP-1200W
Chassis: Lubic Open Paltform 3
Monitor: Dell U2410
OS: Windows 7 64 Bit
室溫27?C，相對濕度60%

3DMark06 (DirectX 9)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/3DMark06.png

3DMark Vantage Performance (DirectX 10)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/3DMarkVantageP.png

3DMark Vantage Extreme (DirectX 10)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/3DMarkVantageX.png

3DMark11 Performance (DirectX 11)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/3DMark11P.png

3DMark11 Extreme (DirectX 11)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/3DMark11X.png

快打旋風 4 (DirectX 9, 1920x1200, 16xQ CSAA, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/StreetFighterIV.png

快打旋風 X 鐵拳 (DirectX 9, 1920x1200, 16xQ CSAA, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/SFTK.png

太空戰士 XIV (DirectX 10, 1920x1080, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/FFXIV.png

惡靈古堡 5 (DirectX 10, 1920x1200, 8x MSAA, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/RE5.png

越野精英賽:大地長征 3 (DirectX 11, 1920x1200, 8x MSAA, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/DiRT3.png

F1 2011 (DirectX 11, 1920x1200, 8x MSAA, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/F1-2011.png

失落的星球 2 (DirectX 11, 1920x1200, 8x MSAA, 特效全開)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/LP2.png

功耗與溫度表現
測試平台與成績引用自 XF顯示卡比較平台 http://www.xfastest.com/cms/VGA/
CPU: Intel Core i7-2600K OC @ 4.8GHz
Cooler: CoolerMaster V6-GT
Thermal Compound: Antec Formula 7
MB: ASRock Fatal1ty P67 Professional
Memory: Kingston HyperX T1 DDR3 @ 1600MHz 8-8-8-24
Power Supply: Antec SG1200W
Chassis: Lani-Li PC-P50R
http://pic.xfastest.com/elvis/XF-VGA/XF-VGA-Bench-01.jpg

使用FurMark 1.10.1 燒機5分鐘
整機最大耗電量來到490W
http://pic.xfastest.com/XF-VGA/X00126-07.jpg

最高溫度來到75?C
http://pic.xfastest.com/XF-VGA/X00126-06.jpg

與公版比較
3DMark06 (DirectX 9)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/DX9.png

3DMark Vantage (DirectX 10)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/DX10.png

3DMark11 (DirectX 11)
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/DX11.png

功耗狀況
http://picx.xfastest.com/elvis/Graphic/Sapphire/VaporX-HD7970-3GB/Power.png

小結
從以上測試數據來看，GHz Edition確實在性能方面有所提升，
而且這張卡還可將時脈超頻至1050MHz。
然而為了超頻勢必得將供電輸出拉高，燒機時的耗電多了不少，
但溫度狀況反而比公版不超頻還低，由此可見Vapor-X散熱技術的威力，
對於想要顯示卡同時擁有絕佳性能與涼爽溫度的玩家來說，
Sapphire Vapor-X HD 7970 GHz Edition相當值得推薦選用!

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