Looks like somebody had it pretty quick. The Portuguese retailer PCDIGA couldn’t wait for the launch of the smallest AMD graphics card with a RDNA2 chip so far, which is rumored for October 13, 2021. My thanks go to the colleagues at videocardz.com for finding it, from whom I also “stole” the idea of the slider. Because the new card is, if you believe the product images from Sapphire, once again quite a bit shorter.
I recently gave the Radeon RX 6600 without XT in a very special article as an emulated consumer card alreadychmarkt you can also see on my picture of the workstation card very nice how small and squat the board turns out in the end, even if Sapphire of course relies on an own design. But there is hardly any room for spatial experimentation:
Reading tip: AMD Radeon RX 6600 Non-XT benchmarks – equal to GeForce RTX 3060?
The AMD Radeon RX 6600 Non-XT relies on the Navi 23 XL GPU, which only has 28 instead of 32 compute units or 1792 instead of 2048 stream processors. Thus, the card is already at a disadvantage of about 12 percentage points on paper, if the clock is set at the same level. The card also features, like the XT, 32MB of Infinity Cache and 8GB of GDDR6 memory running over a 128-bit wide bus interface. The Navi 23 XL GPU itself measures 237 mm² and consists of 11.06 billion transistors. However, the GPU is still not the smallest chip in the RDNA 2 family, as Navi 24 is still expected here for the absolute entry-level range.
The memory speed will surely be back at the usual 16 Gbps, which will then give a total bandwidth of 256 GB/s. But let’s get back to the Sapphire RX 6600 Pulse and the size comparison via slider, which is based on the respective product images from Sapphire:
[bafg id=”174588″]The MSI Radeon RX 6600 XT Gaming X 8 GB tested at launch reached a peak of just over 2610 MHz, the extra cooled Radeon Pro W6600 managed about 20-50 MHz less in practice with me. However, this can be more than compensated by a raised power limit, so that one can expect similarly high clock rates for the custom cards of the RX 6600 without XT.
| Model | RX 6600 |
RX 6600 XT (MSI) | RX 6700 XT | RX 6800 | RX 6800 XT | RX 6900 XT |
|---|---|---|---|---|---|---|
| GPU | Navi 23 | Navi 23 | Navi 22 | Navi 21 | Navi 21 | Navi 21 |
| Process node | 7 nm | 7 nm | 7 nm | 7 nm | 7 nm | 7 nm |
| The Size | 237 mm2 | 237 mm2 | 336 mm2 | 520 mm2 | 520 mm2 | 520 mm2 |
| Transistors |
11.06 billion | 11.06 billion | 17.2 billion | 26.8 billion | 26.8 billion | 26.8 billion |
| Compute units | 28 | 32 | 40 | 60 | 72 | 80 |
| Shader | 1792 | 2048 | 2560 | 3840 | 4608 | 5120 |
| TMUs/ROPs | 112 / 64 | 128/64 | 160/64 | 240 / 96 | 288 / 128 | 320 / 128 |
| Game clock | > 2350 MHz* | 2428 MHz | 2424 MHz | 1815 MHz | 2015 MHz | 2015 MHz |
| Boost Clock | > 2600 MHz* | > 2600 MHz | 2581 MHz | 2105 MHz | 2250 MHz | 2250 MHz |
| Memory GDDR6 |
8 GB | 8 GB | 12 GB | 16 GB | 16 GB | 16 GB |
| Infinity cache | 32 MB | 32 MB | 96 MB | 128 MB | 128 MB | 128 MB |
| Memory bus | 128-bit | 128-bit | 192-bit | 256-bit | 256-bit | 256-bit |
| Memory clock | 16 Gbps | 16 Gbps | 16 Gbps | 16 Gbps | 16 Gbps | 16 Gbps |
| Bandwidth | 256 GB/s | 256 GB/s | 384 GB/s | 512 GB/s | 512 GB/s | 512 GB/s |
| TDP | >=130 W* | 160 W | 230 W | 250 W | 300 W | 300 W |
*) appreciated
Souce: videocardz.com, own
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