AMD Radeon RX 6800M vs NVIDIA GeForce RTX 3080 Mobile
Graphics Processor
| GPU model | Navi 22 | GA104 |
|---|---|---|
| GPU variant | Navi 22 XTM | GA104-775-A1 |
| Architecture | RDNA 2.0 | Ampere |
| Foundry | TSMC | Samsung |
| Manufacturing process | 7 nm | 8 nm |
| Number of transistors | 17,200 million | 17,400 million |
| Die size | 335 mm² | 392 mm² |
Mobile graphics
| Release date | 2021 | Jan 12th, 2021 |
|---|---|---|
| gpu.details.availability | 2021 | Feb 2nd, 2021 |
| Generation | Mobility Radeon (Navi II) | GeForce 30 Mobile |
| Production | Active | Active |
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Reviews | 2 in our database | — |
| Predecessor | — | GeForce 20 Mobile |
Clocks
| Base clock | 2321 MHz | 1110 MHz |
|---|---|---|
| Game clock | 2424 MHz | — |
| Boost clock | 2581 MHz | 1545 MHz |
| Memory clock | 2000 MHz 16 Gbps effective | 1750 MHz 14 Gbps effective |
Memory Configuration
| Memory size | 12 GB | 8 GB |
|---|---|---|
| Memory type | GDDR6 | GDDR6 |
| Memory bus width | 192 bit | 256 bit |
| Bandwidth | 384.0 GB/s | 448.0 GB/s |
Render Configuration
| Shading units | 2560 | 6144 |
|---|---|---|
| TMUs | 160 | 192 |
| ROPs | 64 | 96 |
| Compute units | 40 | — |
| RT cores | 40 | 48 |
| gpu.details.l0-cache | 32 KB per WGP | — |
| Cache L1 | 128 KB per Array | 128 KB (per SM) |
| Cache L2 | 3 MB | 4 MB |
| gpu.details.l3-cache | 96 MB | — |
| SM count | — | 48 |
| Tensor cores | — | 192 |
Performance
| Pixel rate | 165.2 GPixel/s | 148.3 GPixel/s |
|---|---|---|
| Texture rate | 413.0 GTexel/s | 296.6 GTexel/s |
| FP16 (half) performance | 26.43 TFLOPS (2:1) | 18.98 TFLOPS (1:1) |
| FP32 (float) performance | 13.21 TFLOPS | 18.98 TFLOPS |
| FP64 (double) performance | 825.9 GFLOPS (1:16) | 296.6 GFLOPS (1:64) |
Dimensions & Outputs
| Slot width | Dual-slot | — |
|---|---|---|
| TDP | 230 W | 115 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | None |
API Support & Features
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.5 | 6.6 |
| CUDA | — | 8.6 |
