Product Photos
Product Photos
Any Radeon RX 6400 will be equipped with 4 Gigabytes of GDDR6 memory; it will be connected to a 64-bit wide memory bus, which is a severe limitation for a graphics card of this series. AMD is attempting to compensate for the limited memory bus by running that memory at 16 Gbps (effective data rate) and by incorporating an additional L3 cache on the GPU die (on-die) (16MB). When it comes to Full HD resolutions, it will assist you; however, once the L3 cache is depleted and VRAM runs out, which will occur mostly in GPU-bound situations, you can expect to see a huge performance hit.
Product | Cores | Rops | Boost | Memory | Memory Clock | GPU | Power range |
Radeon RX 6400 | 768 | 32 | 2321MHz | DDR6 | 16 Gbps | Navi 24 | 0% |
Radeon RX 6500 XT | 1024 | 32 | 2825MHz | DDR6 | 16 Gbps | Navi 24 | 0% |
Sapphire's low-profile variant is put to the test. It is far easier to use as an entry-level graphics card than a high-end one, therefore it only partially lives up to the premium label. It has a single little fan, although it is rather quiet. Because our card has stock-clocked frequencies, you may expect reference performance.
The 4GB GDDR6 is clocked at 16Gbps, while the 64-bit interface limits the GPU's bandwidth to 128 GB/s, however, AMD advertises the 16MB Infinity Cache capacity as 208 GB/s. That cache bandwidth will be far more useful at lower settings when the cache capacity is less likely to be exceeded, as we witnessed with the RX 6500 XT.
By the way, AMD limited the PCI Express bus to 4 lanes, so that's x4 PCIe Gen 4.0 or 3.0.