AMD Radeon RX 6400 Análisis | 118 Datos comparados

The ASRock Radeon RX 6400 Challenger ITX is a pint-sized, entry-level graphics card measuring 162mm long and weighing 273g, making it an excellent fit for small-form-factor systems. Built on AMD’s 6nm RDNA 2 architecture with 768 shaders and 4GB of GDDR6 memory, the card targets 1080p (FHD) gaming at medium to high settings. In performance testing, it significantly outperforms its immediate competitor, Nvidia's GeForce GTX 1630, and handles eSports titles smoothly. However, users installing it in older systems should note a 12.2% performance drop when constrained to PCIe 3.0 x4 mode, and overclocking is completely locked out by AMD. The review highlights several distinct pros and cons for this specific ASRock model. On the positive side, its compact ITX form factor is highly sensible, it runs remarkably cool and whisper-quiet, and the single fan stops completely when idling. It also features a frugal 53W board power that eliminates the need for an external 6-pin power connector. On the negative side, the card only offers two video outputs (one HDMI 2.1 and one DisplayPort 1.4), and its hardware-based raytracing is a...

The Radeon RX 6400 is a budget graphics card that offers reasonable Full HD (1080p) gaming performance, averaging around 50 FPS in common titles, provided it is paired with a PCIe 4.0 interface and the appropriate in-game quality settings are selected. On the positive side, the card operates with a very low 55W power consumption and remains highly efficient under load. Its cooling system performs well, maintaining temperatures in the 70-degree Celsius range while generating a quiet 38 dBA of acoustic noise. Additionally, coil whine is negligible, and the built-in 16MB L3 Infinity Cache effectively masks its narrow memory bus width under standard conditions. However, the card suffers from severe technical limitations, most notably its small 4GB VRAM capacity, which causes games to stutter heavily once exceeded. Performance is heavily constrained by an extremely narrow 64-bit memory bus. Furthermore, using the card on older PCIe 3.0 systems significantly degrades performance due to its restriction to just x4 PCIe lanes. Its video engine is outdated, supporting only video decoding for H.264 and H.265, while completely lacking accelerated video encoding capabilities. Finally,...

The TechPowerUp review demonstrates that the AMD Radeon RX 6400 suffers from severe bandwidth bottlenecks when used with PCI-Express 3.0, resulting in an average performance loss of 14% at 1080p and 1440p, and up to 23% at 4K compared to PCIe 4.0. Performance drops are most severe in VRAM-intensive games like God of War, which saw a 35% decline, due to the card's limited PCIe 4.0 x4 bus interface. Pros highlighted include the card's ultra-low 53W power consumption and ability to operate without external power, ideal for small-form-factor PCs. However, the cons, such as significant performance loss on older systems, a small 4GB VRAM buffer, lack of encoding support, and poor ray tracing, make it a difficult recommendation for its intended budget market.