Eurogamer: PS4 採用HD 7970M + 4G GDDR5 - PS
By Charlotte
at 2013-01-20T17:59
at 2013-01-20T17:59
Table of Contents
http://www.eurogamer.net/articles/df-hardware-orbis-unmasked-what-to-
expect-from-next-gen-console
Eurogamer 由消息人士方面,得到了關於 PS4 的硬體資訊:
CPU AMD 八核心 "Jaguar" @ 1.6 GHz
顯卡 HD 7970M,減少 10% 的計算單元以及 由 850 MHz 降 50 MHz
效能正好就是前幾天 VG247 所報導的每秒 1.84 兆浮點!
(本版 1 月 18 日文:[情報] PS4 傳言每秒 1.84 兆浮點運算 + 4G RAM!
文章 1G-2PhKD)
其他 特製的類似 GPU 的計算單元,可能負擔物理運算
(以上三者將直接合成一個特製的 SOC 晶片)
RAM 4GB GDDR5 超大頻寬,512 MB 系統 OS 佔用
效能 用類似的 PC 組成的主機,可以跑 Battlefield 3 1080p 特效
全開,還是有每秒 40~50 格。
--
以下是相關討論:
1,上述的 八核心 CPU 其實只是一個非常普通的入門級 PC 的
解決方案,面積才 75~80 mm2。遠遠不如 PS2~PS3 時代的
200 多 mm2。這說明了 PS4 同樣採取「降低 CPU 成本」
的設計概念;畢竟遊戲主機的顯卡才是影響最大的部分,
成本和耗電應該多放在顯卡,而不是像從前那樣放在 CPU。
2,顯卡的部分 HD 7970M 電腦版才 212 mm2,75 瓦的功率。
現在少了 10 % 的計算單元又降頻,相信可以達成合理的
設計指標 "200 mm2 + 每秒 2 兆次浮點 + 100 瓦以下" 。
3,另外有特製的物理運算單元,是否是要補足 CPU 不夠強大
的問題嗎?
4,4GB 只有 512 MB 留給 OS,代表有 3.5 GB 可用在遊戲內。
而 XBOX 720 據稱是有 5 GB(另外 3 GB 要跑各種 app )。
所以 PS4 遊戲至少可活用 3.5 GB 的超高速 RAM。那麼
面對 720 的低速 5 GB RAM,PS4 的串流方案可能也得規劃。
--
expect-from-next-gen-console
Eurogamer 由消息人士方面,得到了關於 PS4 的硬體資訊:
CPU AMD 八核心 "Jaguar" @ 1.6 GHz
顯卡 HD 7970M,減少 10% 的計算單元以及 由 850 MHz 降 50 MHz
效能正好就是前幾天 VG247 所報導的每秒 1.84 兆浮點!
(本版 1 月 18 日文:[情報] PS4 傳言每秒 1.84 兆浮點運算 + 4G RAM!
文章 1G-2PhKD)
其他 特製的類似 GPU 的計算單元,可能負擔物理運算
(以上三者將直接合成一個特製的 SOC 晶片)
RAM 4GB GDDR5 超大頻寬,512 MB 系統 OS 佔用
效能 用類似的 PC 組成的主機,可以跑 Battlefield 3 1080p 特效
全開,還是有每秒 40~50 格。
--
以下是相關討論:
1,上述的 八核心 CPU 其實只是一個非常普通的入門級 PC 的
解決方案,面積才 75~80 mm2。遠遠不如 PS2~PS3 時代的
200 多 mm2。這說明了 PS4 同樣採取「降低 CPU 成本」
的設計概念;畢竟遊戲主機的顯卡才是影響最大的部分,
成本和耗電應該多放在顯卡,而不是像從前那樣放在 CPU。
2,顯卡的部分 HD 7970M 電腦版才 212 mm2,75 瓦的功率。
現在少了 10 % 的計算單元又降頻,相信可以達成合理的
設計指標 "200 mm2 + 每秒 2 兆次浮點 + 100 瓦以下" 。
3,另外有特製的物理運算單元,是否是要補足 CPU 不夠強大
的問題嗎?
4,4GB 只有 512 MB 留給 OS,代表有 3.5 GB 可用在遊戲內。
而 XBOX 720 據稱是有 5 GB(另外 3 GB 要跑各種 app )。
所以 PS4 遊戲至少可活用 3.5 GB 的超高速 RAM。那麼
面對 720 的低速 5 GB RAM,PS4 的串流方案可能也得規劃。
--
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