AMD Radeon RX 460 vs AMD Radeon RX 6400
Graphics Processor
| GPU model | Baffin | Navi 24 |
|---|---|---|
| GPU variant | Baffin PRO | — |
| Architecture | GCN 4.0 | RDNA 2.0 |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 7 nm |
| Number of transistors | 3,000 million | unknown |
| Die size | 123 mm² | unknown |
Graphics Card
| Release date | Aug 8th, 2016 | Unknown |
|---|---|---|
| Generation | Arctic Islands | Navi II |
| Production | Active | Unreleased |
| Interface | PCIe 3.0 x8 | PCIe 4.0 x8 |
| Predecessor | Pirate Islands | Navi |
| Successor | Polaris | Navi III |
Clocks
| Base clock | 1090 MHz | 1800 MHz |
|---|---|---|
| Boost clock | 1200 MHz | 2000 MHz |
| Memory clock | 1750 MHz 7 Gbps effective | 1750 MHz 14 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR6 |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 112.0 GB/s | 112.0 GB/s |
Render Configuration
| Shading units | 896 | 768 |
|---|---|---|
| TMUs | 56 | 48 |
| ROPs | 16 | 32 |
| Compute units | 14 | 12 |
| Cache L1 | 16 KB (per CU) | 128 KB per Array |
| Cache L2 | 1024 KB | 1024 KB |
| RT cores | — | 12 |
| gpu.details.l0-cache | — | 32 KB per WGP |
| gpu.details.l3-cache | — | 16 MB |
Performance
| Pixel rate | 19.20 GPixel/s | 64.00 GPixel/s |
|---|---|---|
| Texture rate | 67.20 GTexel/s | 96.00 GTexel/s |
| FP16 (half) performance | 2.150 TFLOPS (1:1) | 6.144 TFLOPS (2:1) |
| FP32 (float) performance | 2.150 TFLOPS | 3.072 TFLOPS |
| FP64 (double) performance | 134.4 GFLOPS (1:16) | 192.0 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 170 mm 6.7 inches | — |
| TDP | 75 W | 100 W |
| Suggested PSU | 250 W | 300 W |
| Outputs | 1x DVI1x HDMI1x DisplayPort | 1x HDMI2x DisplayPort |
| Power connectors | None | 1x 6-pin |
| Board number | C994 | — |
API Support & Features
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.6 |
