{"id":28995,"date":"2026-01-02T16:21:39","date_gmt":"2026-01-02T08:21:39","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/pcie-vs-nvlink-speed-comparison-gpu-interconnect-tech\/"},"modified":"2026-01-02T16:25:17","modified_gmt":"2026-01-02T08:25:17","slug":"pcie-vs-nvlink-speed-comparison-gpu-interconnect-tech","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/pcie-vs-nvlink-speed-comparison-gpu-interconnect-tech\/","title":{"rendered":"PCIe\u4e0eNVLink\u901f\u5ea6\u5bf9\u6bd4\uff1aGPU\u4e92\u8054\u6280\u672f"},"content":{"rendered":"<h2>\u7406\u89e3\u73b0\u4ee3\u6570\u636e\u4e2d\u5fc3\u4e2d\u7684GPU\u4e92\u8054\u6280\u672f<\/h2>\n<p>\u5728\u5f53\u4eca\u5feb\u901f\u53d1\u5c55\u7684\u9ad8\u6027\u80fd\u8ba1\u7b97\u548c<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/los-angeles\/cn2\/\" target=\"_blank\">\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528<\/a>\u9886\u57df\uff0c\u5728PCIe\u548cNVLink<a href=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/server-cpu-gpu-interconnect-tech-and-bandwidth-calculation\/\" target=\"_blank\">\u4e92\u8054\u6280\u672f<\/a>\u4e4b\u95f4\u505a\u51fa\u6218\u7565\u6027\u9009\u62e9\u5df2\u6210\u4e3a\u6570\u636e\u4e2d\u5fc3\u67b6\u6784\u5e08\u548c\u7cfb\u7edf\u5de5\u7a0b\u5e08\u7684\u91cd\u8981\u8003\u8651\u56e0\u7d20\u3002\u8fd9\u4e9b\u5148\u8fdb\u6280\u672f\u4f5c\u4e3aGPU\u4e0eGPU\u4e4b\u95f4\u4ee5\u53caGPU\u4e0eCPU\u4e4b\u95f4\u901a\u4fe1\u7684\u57fa\u7840\u901a\u9053\uff0c\u6df1\u523b\u5f71\u54cd\u7740\u5404\u7c7b\u8981\u6c42\u82db\u523b\u7684\u5e94\u7528\u7cfb\u7edf\u6027\u80fd\uff0c\u5305\u62ec\u4eba\u5de5\u667a\u80fd\u8bad\u7ec3\u3001\u79d1\u5b66\u8ba1\u7b97\u548c\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n<div class=\"important-note\">\n<p>\u5728PCIe\u548cNVLink\u6280\u672f\u4e4b\u95f4\u7684\u9009\u62e9\u4ee3\u8868\u7740\u4e00\u4e2a\u5173\u952e\u7684\u67b6\u6784\u51b3\u7b56\uff0c\u8fd9\u53ef\u4ee5\u4ece\u6839\u672c\u4e0a\u6539\u53d8\u7cfb\u7edf\u5728\u9ad8\u8981\u6c42\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u8868\u73b0\u3002\u8fd9\u79cd\u9009\u62e9\u7279\u522b\u5f71\u54cd\u6df1\u5ea6\u5b66\u4e60\u8bad\u7ec3\u6548\u7387\u3001\u5b9e\u65f6\u6570\u636e\u5206\u6790\u80fd\u529b\u548c\u590d\u6742\u79d1\u5b66\u6a21\u62df\u7684\u6267\u884c\u3002\u6df1\u5165\u7406\u89e3\u8fd9\u4e9b\u6280\u672f\u5bf9\u4e8e\u5236\u5b9a\u7b26\u5408\u7ec4\u7ec7\u76ee\u6807\u548c\u8ba1\u7b97\u9700\u6c42\u7684\u6218\u7565\u57fa\u7840\u8bbe\u65bd\u51b3\u7b56\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/div>\n<h2>PCIe\u6280\u672f\u89c4\u683c<\/h2>\n<div class=\"tech-specs\">\n<p>PCIe\uff08\u5916\u56f4\u7ec4\u4ef6\u4e92\u8fde\u6807\u51c6\uff09\u5df2\u7ecf\u7ecf\u5386\u4e86\u591a\u4ee3\u91cd\u8981\u6f14\u8fdb\uff0c\u6bcf\u4e00\u4ee3\u90fd\u5728\u5e26\u5bbd\u80fd\u529b\u548c\u8fd0\u884c\u6548\u7387\u65b9\u9762\u53d6\u5f97\u4e86\u5b9e\u8d28\u6027\u8fdb\u5c55\u3002\u4ee5\u4e0b\u662fPCIe\u89c4\u683c\u7684\u7efc\u5408\u5206\u6790\uff1a<\/p>\n<ul>\n<li>PCIe 3.0 (2010):\n<ul>\n<li>\u4f20\u8f93\u901f\u7387\uff1a\u6bcf\u901a\u90538 GT\/s (985 MB\/s)<\/li>\n<li>\u91c7\u75288b\/10b\u7f16\u7801\u4ee5\u63d0\u9ad8\u6570\u636e\u5b8c\u6574\u6027<\/li>\n<li>x16\u603b\u5e26\u5bbd\uff1a15.76 GB\/s<\/li>\n<li>\u5728\u73b0\u6709\u57fa\u7840\u8bbe\u65bd\u4e2d\u5e7f\u6cdb\u90e8\u7f72<\/li>\n<li>\u589e\u5f3a\u7684\u5411\u540e\u517c\u5bb9\u529f\u80fd<\/li>\n<li>\u4f18\u5316\u7684\u7535\u6e90\u7ba1\u7406\u529f\u80fd<\/li>\n<\/ul>\n<\/li>\n<li>PCIe 4.0 (2017):\n<ul>\n<li>\u4f20\u8f93\u901f\u7387\uff1a\u6bcf\u901a\u905316 GT\/s (1.97 GB\/s)<\/li>\n<li>\u5148\u8fdb\u7684\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u673a\u5236<\/li>\n<li>x16\u603b\u5e26\u5bbd\uff1a31.5 GB\/s<\/li>\n<li>\u6539\u8fdb\u7684\u4fe1\u53f7\u5b8c\u6574\u6027\u548c\u53ef\u9760\u6027<\/li>\n<li>\u589e\u5f3a\u7684\u80fd\u6e90\u6548\u7387\u7279\u6027<\/li>\n<li>\u964d\u4f4e\u7684\u5ef6\u8fdf\u7279\u6027<\/li>\n<\/ul>\n<\/li>\n<li>PCIe 5.0 (2019):\n<ul>\n<li>\u4f20\u8f93\u901f\u7387\uff1a\u6bcf\u901a\u905332 GT\/s (3.94 GB\/s)<\/li>\n<li>\u5353\u8d8a\u7684\u4fe1\u53f7\u5b8c\u6574\u6027\u7ba1\u7406<\/li>\n<li>x16\u603b\u5e26\u5bbd\uff1a63 GB\/s<\/li>\n<li>\u5148\u8fdb\u7684\u7535\u6e90\u7ba1\u7406\u529f\u80fd<\/li>\n<li>\u589e\u5f3a\u7684\u53ef\u9760\u6027\u529f\u80fd<\/li>\n<li>\u6539\u8fdb\u7684\u6563\u70ed\u7279\u6027<\/li>\n<\/ul>\n<\/li>\n<li>PCIe 6.0 (2022):\n<ul>\n<li>\u4f20\u8f93\u901f\u7387\uff1a\u6bcf\u901a\u905364 GT\/s (7.88 GB\/s)<\/li>\n<li>\u5b9e\u65bdPAM4\u4fe1\u53f7\u6280\u672f<\/li>\n<li>x16\u603b\u5e26\u5bbd\uff1a126 GB\/s<\/li>\n<li>\u524d\u5411\u9519\u8bef\u7ea0\u6b63(FEC)\u80fd\u529b<\/li>\n<li>\u5148\u8fdb\u7684\u6d41\u63a7\u5236\u673a\u5236<\/li>\n<li>\u589e\u5f3a\u7684\u5b89\u5168\u529f\u80fd<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<h2>NVLink\u6280\u672f\u6df1\u5ea6\u89e3\u6790<\/h2>\n<div class=\"tech-specs\">\n<p>NVIDIA\u7684NVLink\u4ee3\u8868\u7740GPU\u4e92\u8054\u6280\u672f\u7684\u9769\u547d\u6027\u8fdb\u6b65\uff0c\u63d0\u4f9b\u4e86\u591a\u9879\u5f15\u4eba\u6ce8\u76ee\u7684\u4f18\u52bf\u548c\u6280\u672f\u521b\u65b0\uff1a<\/p>\n<ul>\n<li>NVLink 3.0:\n<ul>\n<li>\u53cc\u5411\u5e26\u5bbd\uff1a\u6bcf\u94fe\u8def\u65b9\u541150 GB\/s<\/li>\n<li>\u6700\u5927\u94fe\u8def\u652f\u6301\uff1a12\u6761\u94fe\u8def<\/li>\n<li>\u603b\u5e26\u5bbd\uff1a600 GB\/s<\/li>\n<li>\u5148\u8fdb\u7684\u9519\u8bef\u7ea0\u6b63\u673a\u5236<\/li>\n<li>\u7cbe\u5bc6\u7684\u7535\u6e90\u7ba1\u7406\u529f\u80fd<\/li>\n<li>\u589e\u5f3a\u7684\u6563\u70ed\u7ba1\u7406\u80fd\u529b<\/li>\n<\/ul>\n<\/li>\n<li>NVLink 4.0:\n<ul>\n<li>\u53cc\u5411\u5e26\u5bbd\uff1a\u6bcf\u94fe\u8def\u65b9\u5411100 GB\/s<\/li>\n<li>\u6700\u5927\u94fe\u8def\u652f\u6301\uff1a18\u6761\u94fe\u8def<\/li>\n<li>\u603b\u5e26\u5bbd\uff1a900 GB\/s<\/li>\n<li>\u6700\u65b0\u7684\u7535\u6e90\u7ba1\u7406\u7cfb\u7edf<\/li>\n<li>\u589e\u5f3a\u7684\u4fe1\u53f7\u5b8c\u6574\u6027\u7279\u6027<\/li>\n<li>\u5148\u8fdb\u7684\u6563\u70ed\u4f18\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>NVLink\u4e3b\u8981\u6280\u672f\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li>\u76f4\u63a5GPU\u5230GPU\u901a\u4fe1\n<ul>\n<li>\u964d\u4f4e\u5ef6\u8fdf\u8def\u5f84<\/li>\n<li>\u4f18\u5316\u6570\u636e\u4f20\u8f93\u534f\u8bae<\/li>\n<li>\u589e\u5f3a\u70b9\u5bf9\u70b9\u901a\u4fe1<\/li>\n<\/ul>\n<\/li>\n<li>\u7edf\u4e00\u5185\u5b58\u67b6\u6784\u652f\u6301\n<ul>\n<li>GPU\u4e4b\u95f4\u65e0\u7f1d\u5185\u5b58\u8bbf\u95ee<\/li>\n<li>\u6539\u8fdb\u7684\u5185\u5b58\u4e00\u81f4\u6027<\/li>\n<li>\u589e\u5f3a\u7684\u5185\u5b58\u5e26\u5bbd\u5229\u7528\u7387<\/li>\n<\/ul>\n<\/li>\n<li>\u4f18\u8d8a\u7684\u5ef6\u8fdf\u7279\u6027\n<ul>\n<li>\u51cf\u5c11\u901a\u4fe1\u5f00\u9500<\/li>\n<li>\u4f18\u5316\u6570\u636e\u8def\u5f84\u67b6\u6784<\/li>\n<li>\u589e\u5f3a\u540c\u6b65\u80fd\u529b<\/li>\n<\/ul>\n<\/li>\n<li>\u591aGPU\u914d\u7f6e\u6269\u5c55\n<ul>\n<li>\u7ebf\u6027\u6027\u80fd\u6269\u5c55\u80fd\u529b<\/li>\n<li>\u63d0\u9ad8\u8d44\u6e90\u5229\u7528\u7387<\/li>\n<li>\u589e\u5f3a\u5de5\u4f5c\u8d1f\u8f7d\u5206\u914d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<h2>\u67b6\u6784\u5dee\u5f02\u548c\u5b9e\u65bd\u8003\u8651<\/h2>\n<p>PCIe\u548cNVLink\u6280\u672f\u4e4b\u95f4\u7684\u57fa\u672c\u67b6\u6784\u5dee\u5f02\u9700\u8981\u4ed4\u7ec6\u8003\u8651\u5404\u79cd\u5b9e\u65bd\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li>\u62d3\u6251\u8bbe\u8ba1\uff1a\n<ul>\n<li>PCIe\u67b6\u6784\uff1a\n<ul>\n<li>\u901a\u8fc7CPU\u7684\u4f20\u7edf\u8f6e\u8f90\u5f0f\u6a21\u578b<\/li>\n<li>\u5c42\u7ea7\u8fde\u63a5\u7ed3\u6784<\/li>\n<li>\u6807\u51c6\u5316\u8def\u7531\u534f\u8bae<\/li>\n<\/ul>\n<\/li>\n<li>NVLink\u67b6\u6784\uff1a\n<ul>\n<li>GPU\u4e4b\u95f4\u7684\u76f4\u63a5\u7f51\u683c\u8fde\u63a5<\/li>\n<li>\u7075\u6d3b\u7684\u62d3\u6251\u9009\u9879<\/li>\n<li>\u4f18\u5316\u7684\u8def\u7531\u80fd\u529b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5185\u5b58\u8bbf\u95ee\u6a21\u5f0f\uff1a\n<ul>\n<li>PCIe\u5b9e\u73b0\uff1a\n<ul>\n<li>\u5e38\u89c4\u7cfb\u7edf\u5185\u5b58\u8bbf\u95ee\u65b9\u6cd5<\/li>\n<li>\u6807\u51c6\u5185\u5b58\u6620\u5c04<\/li>\n<li>\u4f20\u7edf\u7f13\u5b58\u4e00\u81f4\u6027\u534f\u8bae<\/li>\n<\/ul>\n<\/li>\n<li>NVLink\u5b9e\u73b0\uff1a\n<ul>\n<li>\u5177\u6709\u76f4\u63a5\u8bbf\u95ee\u7684\u7edf\u4e00\u5185\u5b58\u67b6\u6784<\/li>\n<li>\u5148\u8fdb\u7684\u5185\u5b58\u7ba1\u7406\u529f\u80fd<\/li>\n<li>\u589e\u5f3a\u7684\u7f13\u5b58\u4e00\u81f4\u6027\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u53ef\u6269\u5c55\u6027\u7279\u5f81\uff1a\n<ul>\n<li>PCIe\u9650\u5236\uff1a\n<ul>\n<li>\u53d7CPU\u901a\u9053\u548c\u4ea4\u6362\u673a\u9650\u5236<\/li>\n<li>\u5e26\u5bbd\u5171\u4eab\u8003\u8651<\/li>\n<li>\u8d44\u6e90\u5206\u914d\u6311\u6218<\/li>\n<\/ul>\n<\/li>\n<li>NVLink\u80fd\u529b\uff1a\n<ul>\n<li>\u589e\u52a0GPU\u65f6\u8fd1\u4e4e\u7ebf\u6027\u7684\u6269\u5c55<\/li>\n<li>\u52a8\u6001\u8d44\u6e90\u5206\u914d<\/li>\n<li>\u7075\u6d3b\u7684\u6269\u5c55\u9009\u9879<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u6027\u80fd\u57fa\u51c6\u548c\u5b9e\u9645\u5e94\u7528<\/h2>\n<p>\u5728\u5404\u79cd\u5de5\u4f5c\u8d1f\u8f7d\u4e0b\u7684\u5e7f\u6cdb\u6027\u80fd\u57fa\u51c6\u6d4b\u8bd5\u663e\u793a\u51fa\u663e\u8457\u7684\u6027\u80fd\u5dee\u5f02\uff1a<\/p>\n<ul>\n<li>\u6df1\u5ea6\u5b66\u4e60\u8bad\u7ec3\u5de5\u4f5c\u8d1f\u8f7d\uff1a\n<ul>\n<li>ResNet-50\u67b6\u6784\uff1a\n<ul>\n<li>NVLink\u5c55\u73b02.8\u500d\u6027\u80fd\u63d0\u5347<\/li>\n<li>\u589e\u5f3a\u7684\u6279\u5904\u7406\u80fd\u529b<\/li>\n<li>\u6539\u8fdb\u7684\u68af\u5ea6\u8ba1\u7b97\u6548\u7387<\/li>\n<\/ul>\n<\/li>\n<li>BERT\u6a21\u578b\u8bad\u7ec3\uff1a\n<ul>\n<li>\u4f7f\u7528NVLink\u5b9e\u73b03.2\u500d\u52a0\u901f<\/li>\n<li>\u589e\u5f3a\u7684\u6a21\u578b\u5e76\u884c\u8bad\u7ec3<\/li>\n<li>\u6539\u8fdb\u7684\u5185\u5b58\u5229\u7528\u7387<\/li>\n<\/ul>\n<\/li>\n<li>GPT-3\u5fae\u8c03\u64cd\u4f5c\uff1a\n<ul>\n<li>\u4f7f\u7528NVLink\u83b7\u5f973.5\u500d\u6027\u80fd\u63d0\u5347<\/li>\n<li>\u4f18\u8d8a\u7684\u53c2\u6570\u540c\u6b65<\/li>\n<li>\u589e\u5f3a\u7684\u5206\u5e03\u5f0f\u8bad\u7ec3\u80fd\u529b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u79d1\u5b66\u8ba1\u7b97\u5e94\u7528\uff1a\n<ul>\n<li>\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\uff1a\n<ul>\n<li>2.9\u500d\u8ba1\u7b97\u901f\u5ea6\u63d0\u5347<\/li>\n<li>\u589e\u5f3a\u7684\u7c92\u5b50\u76f8\u4e92\u4f5c\u7528\u8ba1\u7b97<\/li>\n<li>\u6539\u8fdb\u7684\u80fd\u91cf\u5b88\u6052\u7cbe\u5ea6<\/li>\n<\/ul>\n<\/li>\n<li>\u5929\u6c14\u5efa\u6a21\u7cfb\u7edf\uff1a\n<ul>\n<li>\u6a21\u62df\u65f6\u95f4\u51cf\u5c112.7\u500d<\/li>\n<li>\u589e\u5f3a\u7684\u5927\u6c14\u6570\u636e\u5904\u7406<\/li>\n<li>\u6539\u8fdb\u7684\u9884\u6d4b\u51c6\u786e\u6027<\/li>\n<\/ul>\n<\/li>\n<li>\u6d41\u4f53\u52a8\u529b\u5b66\u8ba1\u7b97\uff1a\n<ul>\n<li>\u6c42\u89e3\u65f6\u95f4\u63d0\u53473.1\u500d<\/li>\n<li>\u589e\u5f3a\u7684\u6e4d\u6d41\u5efa\u6a21<\/li>\n<li>\u4f18\u8d8a\u7684\u6570\u503c\u7a33\u5b9a\u6027<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u5b9e\u65bd\u8003\u8651\u56e0\u7d20\u548c\u8d44\u6e90\u9700\u6c42<\/h2>\n<p>\u7ec4\u7ec7\u5728\u89c4\u5212\u5176\u4e92\u8054\u7b56\u7565\u65f6\u5fc5\u987b\u8bc4\u4f30\u591a\u4e2a\u56e0\u7d20\uff1a<\/p>\n<ol>\n<li>\u57fa\u7840\u8bbe\u65bd\u8981\u6c42\uff1a\n<ul>\n<li>\u4f9b\u7535\u7cfb\u7edf<\/li>\n<li>\u6563\u70ed\u57fa\u7840\u8bbe\u65bd\u80fd\u529b<\/li>\n<li>\u7269\u7406\u7a7a\u95f4\u8003\u8651<\/li>\n<li>\u7f51\u7edc\u62d3\u6251\u8981\u6c42<\/li>\n<\/ul>\n<\/li>\n<li>\u8fd0\u8425\u8003\u8651\uff1a\n<ul>\n<li>\u80fd\u6e90\u6548\u7387\u6307\u6807<\/li>\n<li>\u6563\u70ed\u7ba1\u7406\u8981\u6c42<\/li>\n<li>\u7ef4\u62a4\u534f\u8bae<\/li>\n<li>\u7cfb\u7edf\u76d1\u63a7\u80fd\u529b<\/li>\n<\/ul>\n<\/li>\n<li>\u6027\u80fd\u4f18\u5316\uff1a\n<ul>\n<li>\u5de5\u4f5c\u8d1f\u8f7d\u5b8c\u6210\u6548\u7387<\/li>\n<li>\u8d44\u6e90\u5229\u7528\u6a21\u5f0f<\/li>\n<li>\u7cfb\u7edf\u53ef\u6269\u5c55\u6f5c\u529b<\/li>\n<li>\u6027\u80fd\u53ef\u6301\u7eed\u6027\u6307\u6807<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>\u672a\u6765\u6280\u672f\u53d1\u5c55\u548c\u884c\u4e1a\u8d8b\u52bf<\/h2>\n<p>GPU\u4e92\u8054\u6280\u672f\u7684\u6f14\u8fdb\u4ecd\u5728\u7ee7\u7eed\uff0c\u672a\u6765\u53d1\u5c55\u524d\u666f\u53ef\u671f\uff1a<\/p>\n<ul>\n<li>PCIe 7.0\uff08\u9884\u8ba12025-2026\u5e74\uff09\uff1a\n<ul>\n<li>\u7406\u8bba\u5e26\u5bbd\uff1a\u6bcf\u901a\u9053128 GT\/s<\/li>\n<li>\u5148\u8fdb\u7684\u80fd\u6548\u673a\u5236<\/li>\n<li>\u589e\u5f3a\u7684\u4fe1\u53f7\u5b8c\u6574\u6027\u7279\u6027<\/li>\n<li>\u6539\u8fdb\u7684\u6563\u70ed\u7279\u6027<\/li>\n<li>\u5148\u8fdb\u7684\u9519\u8bef\u7ea0\u6b63\u80fd\u529b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e0b\u4e00\u4ee3NVLink\uff1a\n<ul>\n<li>\u9884\u671f\u7684\u5e26\u5bbd\u6539\u8fdb<\/li>\n<li>\u589e\u5f3a\u7684\u80fd\u6548\u7279\u6027<\/li>\n<li>\u5148\u8fdb\u7684\u53ef\u6269\u5c55\u6027\u80fd\u529b<\/li>\n<li>\u6539\u8fdb\u7684\u6563\u70ed\u7ba1\u7406<\/li>\n<li>\u589e\u5f3a\u7684\u5b89\u5168\u7279\u6027<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u7efc\u5408\u7ed3\u8bba<\/h2>\n<p>\u5728PCIe\u548cNVLink\u6280\u672f\u4e4b\u95f4\u7684\u9009\u62e9\u4ee3\u8868\u7740\u4e00\u4e2a\u9700\u8981\u6839\u636e\u5177\u4f53\u7528\u4f8b\u548c\u7ec4\u7ec7\u9700\u6c42\u4ed4\u7ec6\u6743\u8861\u7684\u6218\u7565\u51b3\u7b56\u3002\u867d\u7136PCIe\u4fdd\u6301\u7740\u5176\u4f5c\u4e3a\u884c\u4e1a\u6807\u51c6\u7684\u5730\u4f4d\uff0c\u63d0\u4f9b\u5e7f\u6cdb\u7684\u517c\u5bb9\u6027\u548c\u5df2\u9a8c\u8bc1\u7684\u53ef\u9760\u6027\uff0c\u4f46NVLink\u5728\u9700\u8981\u5bc6\u96c6GPU\u95f4\u901a\u4fe1\u7684\u9ad8\u6027\u80fd\u5e94\u7528\u65b9\u9762\u63d0\u4f9b\u4e86\u4ee4\u4eba\u4fe1\u670d\u7684\u4f18\u52bf\u3002\u968f\u7740\u6570\u636e\u4e2d\u5fc3\u5de5\u4f5c\u8d1f\u8f7d\u6301\u7eed\u6f14\u8fdb\u5e76\u5bf9\u5904\u7406\u80fd\u529b\u63d0\u51fa\u8d8a\u6765\u8d8a\u9ad8\u7684\u8981\u6c42\uff0c\u9009\u62e9\u9002\u5f53\u7684\u4e92\u8054\u6280\u672f\u5bf9\u4e8e\u4fdd\u6301\u7ade\u4e89\u4f18\u52bf\u548c\u8fd0\u8425\u6548\u7387\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<div class=\"important-note\">\n<p>\u7ec4\u7ec7\u5728\u9009\u62e9\u8fd9\u4e9b\u6280\u672f\u65f6\u5fc5\u987b\u5bf9\u5176\u7279\u5b9a\u7684\u5de5\u4f5c\u8d1f\u8f7d\u9700\u6c42\u3001\u57fa\u7840\u8bbe\u65bd\u80fd\u529b\u548c\u672a\u6765\u53ef\u6269\u5c55\u6027\u9700\u6c42\u8fdb\u884c\u5f7b\u5e95\u8bc4\u4f30\u3002\u5bf9\u4e8e\u4e13\u4e1a\u7684\u9ad8\u6027\u80fd\u8ba1\u7b97\u5e94\u7528\uff0cNVLink\u7684\u5353\u8d8a\u6027\u80fd\u7279\u6027\u53ef\u80fd\u8bc1\u660e\u5176\u5b9e\u65bd\u662f\u5408\u7406\u7684\uff0c\u800cPCIe\u7ee7\u7eed\u6709\u6548\u5730\u670d\u52a1\u4e8e\u901a\u7528\u8ba1\u7b97\u9700\u6c42\u3002\u8fd9\u4e00\u51b3\u7b56\u8fc7\u7a0b\u5e94\u8be5\u7531\u5168\u9762\u7684\u6280\u672f\u5206\u6790\u6307\u5bfc\uff0c\u5e76\u4e0e\u7ec4\u7ec7\u7684\u957f\u671f\u76ee\u6807\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7406\u89e3\u73b0\u4ee3\u6570\u636e\u4e2d\u5fc3\u4e2d\u7684GPU\u4e92\u8054\u6280\u672f \u5728\u5f53\u4eca\u5feb\u901f\u53d1\u5c55\u7684\u9ad8\u6027\u80fd\u8ba1\u7b97\u548c\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u9886\u57df\uff0c\u5728PCIe\u548cNVLink\u4e92\u8054\u6280\u672f\u4e4b\u95f4\u505a\u51fa\u6218\u7565\u6027\u9009\u62e9\u5df2\u6210\u4e3a\u6570\u636e\u4e2d\u5fc3\u67b6\u6784\u5e08\u548c\u7cfb\u7edf\u5de5\u7a0b\u5e08\u7684\u91cd\u8981\u8003\u8651\u56e0\u7d20\u3002\u8fd9\u4e9b\u5148\u8fdb\u6280\u672f\u4f5c\u4e3aGPU\u4e0eGPU\u4e4b\u95f4\u4ee5\u53caGPU\u4e0eCPU\u4e4b\u95f4\u901a\u4fe1\u7684\u57fa\u7840\u901a\u9053\uff0c\u6df1\u523b\u5f71\u54cd\u7740\u5404\u7c7b\u8981\u6c42\u82db\u523b\u7684\u5e94\u7528\u7cfb\u7edf\u6027\u80fd\uff0c\u5305\u62ec\u4eba\u5de5\u667a\u80fd\u8bad\u7ec3\u3001\u79d1\u5b66\u8ba1\u7b97\u548c\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\u5de5\u4f5c\u8d1f\u8f7d\u3002 \u5728PCIe\u548cNVLink\u6280\u672f\u4e4b\u95f4\u7684\u9009\u62e9\u4ee3\u8868\u7740\u4e00\u4e2a\u5173\u952e\u7684\u67b6\u6784\u51b3\u7b56\uff0c\u8fd9\u53ef\u4ee5\u4ece\u6839\u672c\u4e0a\u6539\u53d8\u7cfb\u7edf\u5728\u9ad8\u8981\u6c42\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u8868\u73b0\u3002\u8fd9\u79cd\u9009\u62e9\u7279\u522b\u5f71\u54cd\u6df1\u5ea6\u5b66\u4e60\u8bad\u7ec3\u6548\u7387\u3001\u5b9e\u65f6\u6570\u636e\u5206\u6790\u80fd\u529b\u548c\u590d\u6742\u79d1\u5b66\u6a21\u62df\u7684\u6267\u884c\u3002\u6df1\u5165\u7406\u89e3\u8fd9\u4e9b\u6280\u672f\u5bf9\u4e8e\u5236\u5b9a\u7b26\u5408\u7ec4\u7ec7\u76ee\u6807\u548c\u8ba1\u7b97\u9700\u6c42\u7684\u6218\u7565\u57fa\u7840\u8bbe\u65bd\u51b3\u7b56\u81f3\u5173\u91cd\u8981\u3002 PCIe\u6280\u672f\u89c4\u683c PCIe\uff08\u5916\u56f4\u7ec4\u4ef6\u4e92\u8fde\u6807\u51c6\uff09\u5df2\u7ecf\u7ecf\u5386\u4e86\u591a\u4ee3\u91cd\u8981\u6f14\u8fdb\uff0c\u6bcf\u4e00\u4ee3\u90fd\u5728\u5e26\u5bbd\u80fd\u529b\u548c\u8fd0\u884c\u6548\u7387\u65b9\u9762\u53d6\u5f97\u4e86\u5b9e\u8d28\u6027\u8fdb\u5c55\u3002\u4ee5\u4e0b\u662fPCIe\u89c4\u683c\u7684\u7efc\u5408\u5206\u6790\uff1a PCIe 3.0 (2010): \u4f20\u8f93\u901f\u7387\uff1a\u6bcf\u901a\u90538 GT\/s (985 MB\/s) \u91c7\u75288b\/10b\u7f16\u7801\u4ee5\u63d0\u9ad8\u6570\u636e\u5b8c\u6574\u6027 x16\u603b\u5e26\u5bbd\uff1a15.76 GB\/s \u5728\u73b0\u6709\u57fa\u7840\u8bbe\u65bd\u4e2d\u5e7f\u6cdb\u90e8\u7f72 \u589e\u5f3a\u7684\u5411\u540e\u517c\u5bb9\u529f\u80fd \u4f18\u5316\u7684\u7535\u6e90\u7ba1\u7406\u529f\u80fd PCIe 4.0 (2017): \u4f20\u8f93\u901f\u7387\uff1a\u6bcf\u901a\u905316 GT\/s (1.97 GB\/s) \u5148\u8fdb\u7684\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u673a\u5236 x16\u603b\u5e26\u5bbd\uff1a31.5 GB\/s 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