AIDA64’s latest version adds info on a number of new graphics cards including the AMD Radeon RX 6600, 6600 XT, 6700, 6700 XT, and on NVIDIA’s side, the GeForce RTX 3050 and 3050 Ti (both mobile and desktop) as well as the GeForce RTX 3080 Ti. The specs of the Radeon RX 6600 XT based on the Navi 23 die (codenamed Dimgray Cavefish) were leaked a while back.
We’re looking at 32 Computer Units, down from 36 on the RX 5600 XT, and a cut-down 128-bit bus paired with 8GB of GDDR6 memory running at 16Gbps. That’s quite the drop from the 192-bit interface that fed the RX 5600 XT and may cause bottlenecks in certain situations. Luckily for AMD, this GPU is geared towards “premium 1080p gaming” and as such, the load on the memory subsystem will be fairly moderate. To make up for the cut-down bus, the budget RDNA 2 GPU is getting 64MB of L3 “Infinity Cache”, with a targeted performance roughly on par with the GeForce RTX 3060. It’s interesting to note that the latter comes with a 192-bit bus and an overall external memory bandwidth of 360GB/s. The Radeon RX 6600 XT, on the other hand, will likely be limited to under 200GB/s, and be a smidge slower. The GPU is expected to launch in April.
| RX 5600 XT | RX 6600 XT | RX 6700 XT | |
|---|---|---|---|
| Arch | Navi | Navi 2X | Navi 2X |
| Die | Navi 10 | Navi 23 | Navi 22 |
| Shader/CU Count | 2,304/36 | 2,048/32 | 2,560/40 |
| Memory | 6GB | 8GB | 12GB |
| Memory Bus | 192-bit | 128-bit | 192-bit |
| Infinity Cache | N/A | 64MB | 96MB |
| ROPs | 64 | 32? | 64 |
| TMUs | 144 | 128? | 160 |
| Bandwidth | 288GB/s | 192GB/s? | 384GB/s |
As for the GeForce RTX 3080 Ti, it’s essentially going to be an RTX 3090 with half as much memory. It gets nearly the same shader strength (10,240 FP32 cores vs 10,496 on the 3090) the same 384-bit memory bus paired with 12GB GDDR6X memory resulting in a bandwidth of 936GB/s.
Down the ladder, the RTX 3050 and 3050 Ti are both going to be based on the GA107 die. The two GPUs will most likely be paired with a paltry 128-bit bus and 4GB GDDR6 memory for the 3050 and a slightly larger 6GB buffer for the latter. In terms of the core counts, the 3050 will feature 2,304 FP32 cores while the 3050 Ti should come with close to 3,000 FP32 cores. Considering that AIDA64 gets product info quite close to the release date, we’re likely looking at a launch in mid to late April.
