Radeon HD 4850使用的記憶體為奇夢達 1.0ns 16Mx32的GDDR3顆粒,運作速度993MHz,總共512MB、頻寬為256bit,透過HDMI轉接頭可以達到7.1聲道音效與影像的即時輸出規格。
Radeon HD 4850使用的是TSMC[台積電] 55奈米製程GPU,支援CrossfireX顯示架構、DirectX 10.1,加強[Universal Video Decoder2]支援性,簡寫為UVD2更加改良了前代UVD1的處理速度,並加入對於MPEG-2的硬體支援性能,另外提到的一點NVIDIA自家目前所使用的最高硬體解碼技術為[PureVideo HD 3]。
Run #1- DX10 800x600 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 48.66
Run #2- DX10 800x600 AA=2x, 64 bit test, Quality: High ~~ Overall Average FPS: 47.065
Run #3- DX10 800x600 AA=4x, 64 bit test, Quality: High ~~ Overall Average FPS: 45.91
Run #4- DX10 800x600 AA=8x, 64 bit test, Quality: High ~~ Overall Average FPS: 46.93
Run #5- DX10 1280x1024 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 41.2
Run #6- DX10 1280x1024 AA=2x, 64 bit test, Quality: High ~~ Overall Average FPS: 38.225
Run #7- DX10 1280x1024 AA=4x, 64 bit test, Quality: High ~~ Overall Average FPS: 34.855
Run #8- DX10 1280x1024 AA=8x, 64 bit test, Quality: High ~~ Overall Average FPS: 38.21
Run #9- DX10 1680x1050 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 32.485
Run #10- DX10 1680x1050 AA=2x, 64 bit test, Quality: High ~~ Overall Average FPS: 29.48
Run #11- DX10 1680x1050 AA=4x, 64 bit test, Quality: High ~~ Overall Average FPS: 26.355
Run #12- DX10 1680x1050 AA=8x, 64 bit test, Quality: High ~~ Overall Average FPS: 29.44
Run #13- DX10 1900x1200 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 26.75
Crysis CPU超頻至4G下所得到的分數
Run #1- DX10 800x600 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 57.975
Run #2- DX10 800x600 AA=2x, 64 bit test, Quality: High ~~ Overall Average FPS: 55.61
Run #3- DX10 800x600 AA=4x, 64 bit test, Quality: High ~~ Overall Average FPS: 54.455
Run #4- DX10 800x600 AA=8x, 64 bit test, Quality: High ~~ Overall Average FPS: 56.675
Run #5- DX10 1280x1024 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 41.715
Run #6- DX10 1280x1024 AA=2x, 64 bit test, Quality: High ~~ Overall Average FPS: 38.57
Run #7- DX10 1280x1024 AA=4x, 64 bit test, Quality: High ~~ Overall Average FPS: 35.15
Run #8- DX10 1280x1024 AA=8x, 64 bit test, Quality: High ~~ Overall Average FPS: 38.55
Run #9- DX10 1680x1050 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 32.635
Run #10- DX10 1680x1050 AA=2x, 64 bit test, Quality: High ~~ Overall Average FPS: 29.61
Run #11- DX10 1680x1050 AA=4x, 64 bit test, Quality: High ~~ Overall Average FPS: 26.835
Run #12- DX10 1680x1050 AA=8x, 64 bit test, Quality: High ~~ Overall Average FPS: 29.605
Run #13- DX10 1900x1200 AA=No AA, 64 bit test, Quality: High ~~ Overall Average FPS: 26.9
遊戲實測畫面與結論:
在上面測試了3D Mark06、3DMark Vantage因為沒有超頻對比,應該說整張卡溫度爆高,如果再行超頻分數也並不會好看到哪..
除非玩家自行更改散熱,就一般在機殼使用下溫度一定會更高於剛剛上面所提到的溫度,更別說要超頻4850了.....
所以這邊的遊戲畫面實測,也以CPU與GPU都完全不超頻的狀態下,所得出的分數分享給各位參考。
老實說!!這次ATI的4850設計就算完全不超頻使用,在遊戲裡面也是一整個呼風喚雨,所向無敵的..
還有不要忘了Universal Video Decoder2支援性,UVD2更加強與改良了前代UVD1的處理影片的速度。
另外ATI的畫質一直是被網友們所津津樂道的,總之ATI這次.........雖然還未在高階市場探出活路,但也已經給了nVIDIA一顆超級震撼的未爆彈了!!