近年来，显卡市场风云变幻，各大厂商纷纷推出新品。近日，一款名为4090的显卡引发了广泛关注。许多人好奇，为什么4090的规格是4070的将近3倍，性能却只有2倍，瓶颈在哪？据UserBenchmark和Techpowerup等评测机构的数据显示，如果考虑游戏帧率的话，这个差距肯定还会缩小。
首先，我们需要了解显卡性能的评判标准。显卡性能不仅取决于硬件规格，还受到软件优化、散热、供电等多方面因素的影响。在实际使用中，显卡的性能表现并非单纯地与其规格成正比。那么，4090为何在性能上未能拉开与4070的差距呢？
一方面，虽然4090的硬件规格更高，但其在散热、供电等方面的设计可能并未跟上。这导致了4090在长时间运行高负载场景时，性能瓶颈的出现。另一方面，软件优化也是影响显卡性能的重要因素。厂商可能在4070上做了更好的优化，使得其在某些场景下表现优于4090。
此外，游戏帧率是评价显卡性能的另一个重要指标。在高帧率的游戏场景下，4070与4090的性能差距可能会进一步缩小。因为在这种情况下，显卡的性能瓶颈更多取决于其处理帧的能力，而非单纯的硬件规格。
综上所述，4090显卡在性能上未能碾压4070，原因可能在于散热、供电、软件优化等多方面因素。随着技术的不断发展，我们期待未来显卡能够在性能上实现更大的突破。
Title: The mystery of graphics card performance: Why 4090 falls short against 4070
Keywords: Graphics card, Performance, Bottleneck
News content:
In recent years, the graphics card market has been undergoing rapid changes, with major manufacturers launching new products. Recently, a graphics card named 4090 has attracted widespread attention. Many people wonder why the specification of 4090 is nearly triple that of 4070, but the performance is only twice as good. What is the bottleneck? According to data from testing institutions such as UserBenchmark and Techpowerup, the gap in performance between the two graphics cards would likely shrink if game frame rate is taken into consideration.
First of all, we need to understand the evaluation criteria for graphics card performance. The performance of a graphics card not only depends on hardware specifications but also on software optimization, cooling, power supply, and other factors. In actual use, the performance of a graphics card is not directly proportional to its specifications. So, why can’t 4090 pull away from 4070 in terms of performance?
On the one hand, although 4090 has higher hardware specifications, its design in terms of cooling and power supply may not keep up. This leads to performance bottlenecks when 4090 runs high-load scenarios for extended periods. On the other hand, software optimization is also an essential factor affecting the performance of a graphics card. The manufacturer may have done better optimization for 4070, making it outperform 4090 in some scenarios.
Furthermore, game frame rate is another critical indicator for evaluating graphics card performance. In high-frame-rate gaming scenarios, the performance gap between 4070 and 4090 might further shrink. In this case, the performance bottleneck of the graphics card depends more on its ability to process frames rather than solely on hardware specifications.
In conclusion, the performance of 4090 falls short of 4070 due to various factors such as cooling, power supply, and software optimization. As technology continues to evolve, we look forward to seeing greater breakthroughs in graphics card performance in the future.
【来源】https://www.zhihu.com/question/637400593
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