AMD Radeon RX 590 vs AMD Radeon RX 6400
Graphics Processor
| GPU model | Polaris 30 | Navi 24 |
|---|---|---|
| GPU variant | Polaris 30 XT (215-0922006) | — |
| Architecture | GCN 4.0 | RDNA 2.0 |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 12 nm | 7 nm |
| Number of transistors | 5,700 million | unknown |
| Die size | 232 mm² | unknown |
Graphics Card
| Release date | Nov 15th, 2018 | Unknown |
|---|---|---|
| Generation | Polaris | Navi II |
| Production | Active | Unreleased |
| Launch price | 279 USD | — |
| Current price | Amazon / Newegg | — |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Reviews | 36 in our database | — |
| Predecessor | Arctic Islands | Navi |
| Successor | Vega | Navi III |
Clocks
| Base clock | 1469 MHz | 1800 MHz |
|---|---|---|
| Boost clock | 1545 MHz | 2000 MHz |
| Memory clock | 2000 MHz 8 Gbps effective | 1750 MHz 14 Gbps effective |
Memory Configuration
| Memory size | 8 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR6 |
| Memory bus width | 256 bit | 64 bit |
| Bandwidth | 256.0 GB/s | 112.0 GB/s |
Render Configuration
| Shading units | 2304 | 768 |
|---|---|---|
| TMUs | 144 | 48 |
| ROPs | 32 | 32 |
| Compute units | 36 | 12 |
| Cache L1 | 16 KB (per CU) | 128 KB per Array |
| Cache L2 | 2 MB | 1024 KB |
| RT cores | — | 12 |
| gpu.details.l0-cache | — | 32 KB per WGP |
| gpu.details.l3-cache | — | 16 MB |
Performance
| Pixel rate | 49.44 GPixel/s | 64.00 GPixel/s |
|---|---|---|
| Texture rate | 222.5 GTexel/s | 96.00 GTexel/s |
| FP16 (half) performance | 7.119 TFLOPS (1:1) | 6.144 TFLOPS (2:1) |
| FP32 (float) performance | 7.119 TFLOPS | 3.072 TFLOPS |
| FP64 (double) performance | 445.0 GFLOPS (1:16) | 192.0 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 241 mm 9.5 inches | — |
| TDP | 175 W | 100 W |
| Suggested PSU | 450 W | 300 W |
| Outputs | 1x HDMI3x DisplayPort | 1x HDMI2x DisplayPort |
| Power connectors | 1x 8-pin | 1x 6-pin |
| Board number | C944-41 | — |
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 |
