The RTX 4070 graphics card is confirmed to use 12GB of video memory, but the bit width is the flaw

The RTX 4070 graphics card is confirmed to use 12GB of video memory, but the bit width is the flaw


It is reported that Nvidia will release the RTX 4070 graphics card on April 12 and go on sale the next day. But before that, the relevant information of RTX 4070 and RTX 4060 has been leaked by Gigabyte, and these two non-public graphics cards appeared in the latest version of Gigabyte’s control center software.

Judging from the leaked information, the RTX 4070 will have 12GB of video memory, while the RTX 4060 will have 8GB. Previously, Nvidia released three desktop graphics cards, RTX 4070 Ti, RTX 4080 and RTX 4090, and also launched five mobile graphics cards. However, for most users, compared to the extremely expensive flagship graphics card, the dessert-level graphics card that is more in line with the needs of most players is the blockbuster product of each generation of graphics cards. But considering that the RTX 4080 and RTX 4070 Ti have different degrees of price increases this time, it also makes people sweat for the final price of the RTX 4070.

In terms of specifications, although the RTX 4070 uses the same AD104 core as the RTX 4070 Ti, it has fewer cores. The RTX 4070 has only 5888 CUDA cores, which is 1792 fewer than the RTX 4070 Ti. The video memory is 12GB? GDDR6X, and the TDP is expected to be 200W.

  

Most importantly, the memory interface width of the RTX 4070 is also expected to be 192bit, which is consistent with the RTX 4070 Ti, and this is precisely one of the reasons why the RTX 4070 Ti has been criticized. In terms of basic performance, RTX 4070 Ti is even smaller than RTX 3090 Ti, but too small memory bandwidth will inevitably lead to a great impact on the performance of RTX 4070 Ti at high resolution. In the actual test, at 2K resolution, the performance of RTX 4070 Ti is basically similar to that of RTX 3090 Ti with or without ray tracing enabled. In games that support DLSS 3.0, RTX 4070 Ti has a greater advantage.

However, when the resolution is increased to 4K, the drawbacks of RTX 4070 Ti cutting off the video memory bandwidth began to appear. Due to the huge data throughput at 4K resolution, the 192bit wide video memory cannot fully interact with data, resulting in 4K resolution. Bring performance bottlenecks. It’s like the original 4-lane expressway just enough to meet the traffic flow during peak hours, but suddenly changing to 2-lane highway caused vehicle congestion and reduced the passing rate.

Considering that the actual performance of the RTX 4070 Ti exceeds that of the RTX 3090 Ti, the performance of the RTX 4070 is very likely to be comparable to that of the RTX 3090, but it is limited by the small memory interface, which also makes this graphics card mainly for 2K resolution. game. At the same time, from the perspective of selling price, the initial price of RTX 4070 Ti is as high as 6499 yuan, and the price of RTX 4070 is also worrying, and its final price may be 5499 yuan.

If the RTX 4070 has a bit width of 256bit, then this price is actually not unacceptable to users. Although the starting price of the previous generation RTX 3070 is 3899 yuan, considering that the RTX 4070 is sufficient to match the performance of the RTX 3090, the user acceptance of such a price is not necessarily low. But the result is that the 192bit bit width is destined to greatly limit the usage scenarios of this graphics card. When users spend the price of the flagship graphics card, they can only receive a 2K resolution card. The lack of 4K game performance is the only reason. That’s the biggest problem with this graphics card.



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