23.6显示器 1900*1080 E6550的CPU(小超到2.8)
前天发了个帖子问了半天,感谢很多人给的建议,最终把组260+ SLI的想法打消了,对于只想花个千八百以内升级的我来说性价比实在不高,在升250 SLI还是单260+之间犹豫了好久,连续好多个人推荐单260+
经请教说是因为250 SLICPU频率不够有瓶颈性能和260+差不多...........那CPU的瓶颈具体会影响有多大呀?250 SLI 性能真的发挥不出来?
非常感谢8楼sttn同志的实测数据帮忙,这样的话我已经了我现在的E6550就现在小超2.8不超内存不高烧的情况下别说250 SLI接近285的性能了,就光单卡260+不升级CPU到8400再超一下都有10%~15%发挥不出来,既然这样的话,我又暂时还想等FERMI和I5 I7再降降再成熟些再重新装机器,那么干脆就弄个GTX260得了,正好比260+性能低10%左右,刚好我的CPU小超完估计正好能完全发挥,呵呵,这个方案大家帮参谋下应该不错了吧?作者: heavenboy 时间: 2010-1-7 16:59
sli 建议4g的i7吧
sli 或者cf 用中低端卡有个不好的缺点,平均fps不错,但是mini fps低,这是单卡能力限制的,没办法作者: heavenboy 时间: 2010-1-7 17:03
x-labs 测试5750 5770 cf 结论原话
Although the CrossFireX configuration built out of two Radeon HD 5750 was overall superior to the single Radeon HD 5850 and the two Radeon HD 5770 were faster than the single Radeon HD 5870, I wouldn’t say that they are preferable. The problem is that the CrossFireX tandems are often inferior in terms of bottom speed due to the AFR rendering mode and 128-bit memory bus. The latter shows up in high-quality modes and at high resolutions. So, while CrossFireX boosts the average frame rate to the level of top-end graphics cards, the bottom frame rate remains rather low. And it is the bottom speed that determines the level of playing comfort.
虽然两张卡cf 平均fps 都干翻了5850和5870,但是并不表示优于58xx,因为在全开效果和高分辨率下 mini fps 非常低下