随着AMD Software Adrenalin Edition 25.9.2驱动程序的发布,AMD也发布了新款Radeon RX 7700显卡,用于台式机。从型号上就能知道,这是搭载RDNA 3架构GPU的产品,距离相近的Radeon RX 7700 XT发布已经过去两年了。
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Radeon RX 7700采用了Navi 32芯片,拥有40个CU,即2560个流处理器,搭配16GB的GDDR6显存,位宽为256-bit,速率为19.5Gbps,对应的显存带宽为624GB/s,配有双8Pin供电接口,整卡功耗为263W,推荐使用额定功率700W的电源。暂时不清楚发售的地区和定价信息,也有可能与Radeon RX 7400的情况一样,是为OEM及系统集成商提供的产品。
相比于Radeon RX 7700 XT,Radeon RX 7700并不是简单地减低规格。虽然CU数量更少了,但是显存位宽和容量都更大了,而且速率也更高了,达到了Radeon RX 7800 XT的水平,这也符合当下游戏对显存容量要求越来越高的趋势。按照AMD官方的说法,在相同测试条件下,Radeon RX 7700比起Radeon RX 7700 XT会有16%至19%的性能下降。
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title: "AMD Radeon RX 7000系列 显卡 规格参数对比",
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["RX 7900 XTX", "Navi 31 XTX", "6144", "24GB GDDR6", "384-bit", "20Gbps", "355W", "999美元"],
["RX 7900 XT","Navi 31 XT", "5376", "20GB GDDR6", "320-bit", "20Gbps", "315W", "899美元"],
["RX 7900 GRE","Navi 31 XL", "5120", "16GB GDDR6", "256-bit", "18Gbps", "260W", "549美元"],
["RX 7800 XT","Navi 32 XT", "3840", "16GB GDDR6", "256-bit", "19.5Gbps", "263W", "499美元"],
["RX 7700 XT","Navi 32 XL", "3456", "12GB GDDR6", "192-bit", "18Gbps", "245W", "449美元"],
["RX 7700","Navi 32", "2560", "16GB GDDR6", "256-bit", "19.5Gbps", "263W", "-"],
["RX 7600 XT","Navi 33 XT", "2048", "16GB GDDR6", "128-bit", "18Gbps", "190W", "329美元"],
["RX 7600","Navi 33 XL", "2048", "8GB GDDR6", "128-bit", "18Gbps", "165W", "268美元"],
["RX 7400","Navi 33", "1792", "8GB GDDR6", "128-bit", "10.8Gbps", "43W", "-"]
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