[情報] PCIe Gen3/Gen4是否會造成RTX3080的瓶頸?

PC購物

30260

評測解禁後,很快也有RTX3080搭配Intel (10900K)和AMD (3900XT)的比較...
其實在之前多數遊戲評測上都可以清楚知道,在這部分的應用,還是Intel略勝一籌,
所以這個交叉評測主要重點在於目前兩家分別最高支援PCIe Gen 3和PCIe Gen 4,
到底會不會對於效能大躍進的RTX3080產生實際上的瓶頸與影響。


We already have a general idea of how the Ryzen 9 3900XT compares to the
i9-10900K when tested with a GeForce RTX 2080 Ti in its dedicated review of
the processor. However, one of the questions we're trying to answer is
whether PCIe Gen 4 helps the 3900XT gain on the i9-10900K. Our testing data
should also give you insights into whether the Ryzen 9 3900XT suits your
needs as a gaming and productivity machine combined, in which your line of
work can benefit from the extra two cores.

在這部分的測試,從評測結果可以得知PCIe Gen3/4幾乎沒影響,也就是說即使是RTX 3080,
也還無法撐到PCIe Gen 3的頻寬上限...

After finishing the "normal at stock" testing, I got curious about how much
of the performance difference can be attributed to the PCI-Express link speed
advantage Ryzen has over the i9-10900K. Remember, Intel's Comet Lake CPUs
still max out at PCI-Express Gen 3. The NVIDIA GeForce RTX 3080 introduces
PCIe 4.0 support, so the assumption could be that Ampere will work better on
AMD CPUs than on Intel, because the former support the faster PCI-Express Gen
4 mode. That's what the second AMD data point is for, colored in light red.
However, we see only minor differences that average out to 1% vs. the Gen 4
results, no matter the resolution. Even the RTX 3080 isn't anywhere close to
saturating the PCI-Express Gen 3 interface so that Gen 4 could provide an
increase in performance.

有興趣可以看下面評測原文:
NVIDIA GeForce RTX 3080 with AMD Ryzen 3900XT vs. Intel Core i9-10900K
https://reurl.cc/2gWoRr


--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 36.225.82.171 (臺灣) ※ 文章網址: https://www.ptt.cc/bbs/PC_Shopping/M.1600306861.A.E47.html
jasn45601樓所以10700打遊戲還是夠虐AMD了 (茶 09/17 09:42
kimula012樓之前那個造謠仔說要4.0才能跑的可以水桶了吧? 09/17 09:44
pipi58673樓幾乎都沒差多少.. 09/17 09:45
pipi58674樓2k以上甚至差不到5% 09/17 09:45
aria05205樓本身cpu對fps的影響也就只有幾%了 遊戲瓶頸還是在 09/17 09:47
aria05206樓gpu上 討論遊戲cpu哪家強根本就假議題 09/17 09:47
aria05207樓pcie4的ssd讓你讀4k材質圖更快搞不好還差比較多 09/17 09:48
arrenwu8樓@aria0520 話倒也不是這樣講的 你把解析度和特效都 09/17 09:48
arrenwu9樓調低其實瓶頸可能就在CPU了 09/17 09:48
arrenwu10樓只是一般最大眾的螢幕是60fps,這個範圍通常瓶頸 09/17 09:49
arrenwu11樓就會是GPU 09/17 09:49
NoneWolf12樓所以發表會用intel CPU做Demo啊 可能要等RTX IO吧 09/17 09:50
aria052013樓 09/17 09:51
jasn456014樓SATA跟PCIE SSD的遊戲讀取都差沒多少了 4.0哪有感 09/17 09:51
aria052015樓我是覺得會買到3080的應該都2k144起跳 09/17 09:52
arrenwu16樓他發表會用 Intel 還 AMD CPU沒差啦 這兩者差不多 09/17 09:52
aria052017樓有啦 次世代的4k遊戲理論上就有影響了 09/17 09:52
arrenwu18樓明年 DirectStorage 如果真的release就可以差很多了 09/17 09:53
arrenwu19樓除此之外次世代遊戲機上的3A應該也可以期待物件 09/17 09:54
arrenwu20樓會比以前多。以前是CPU著實爛 09/17 09:54
awangya21樓看來差距是無感的程度,這樣CPU 也不一定要3700X了 09/17 10:10
arrenwu22樓3700x 就 便宜 + 功耗表現佳 09/17 10:16
jasn456023樓3700x跟10700F比 也沒有比較便宜阿 09/17 10:18
jasn456024樓10700F玩遊戲的功耗也沒多可怕 又不是在燒FPU 09/17 10:18
arrenwu25樓奇怪 台灣3700x訂價稍微高了些 09/17 10:22
kimula0126樓奧德賽測試...這優化很差 可以看看別的遊戲差異 09/17 10:22
mercuries227樓可以期待zen3在遊戲方面超車 09/17 10:33
awangya28樓不知道用在4750G這種的如果關閉內顯是不是也是跑3.0 09/17 10:36
awangya29樓x16 09/17 10:36
kuninaka30樓CPU應該會顯著影響在一些需要高FPS的遊戲 09/17 10:50