AMD Radeon R9 390 vs AMD Radeon RX 6500 XT
Graphics Processor
| GPU model | Grenada | Navi 24 |
|---|---|---|
| GPU variant | Grenada PRO (215-0880030) | — |
| Architecture | GCN 2.0 | RDNA 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 7 nm |
| Number of transistors | 6,200 million | unknown |
| Die size | 438 mm² | unknown |
Graphics Card
| Release date | Jun 18th, 2015 | Unknown |
|---|---|---|
| Generation | Pirate Islands | Navi II |
| Production | End-of-life | Unreleased |
| Launch price | 329 USD | — |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Reviews | 35 in our database | — |
| Predecessor | Volcanic Islands | Navi |
| Successor | Arctic Islands | Navi III |
Clocks
| GPU clock | 1000 MHz | — |
|---|---|---|
| Memory clock | 1500 MHz 6 Gbps effective | 2000 MHz 16 Gbps effective |
| Base clock | — | 2200 MHz |
| Boost clock | — | 2500 MHz |
Memory Configuration
| Memory size | 8 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR6 |
| Memory bus width | 512 bit | 64 bit |
| Bandwidth | 384.0 GB/s | 128.0 GB/s |
Render Configuration
| Shading units | 2560 | 1024 |
|---|---|---|
| TMUs | 160 | 64 |
| ROPs | 64 | 32 |
| Compute units | 40 | 16 |
| Cache L1 | 16 KB (per CU) | 128 KB per Array |
| Cache L2 | 1024 KB | 1024 KB |
| RT cores | — | 16 |
| gpu.details.l0-cache | — | 32 KB per WGP |
| gpu.details.l3-cache | — | 16 MB |
Performance
| Pixel rate | 64.00 GPixel/s | 80.00 GPixel/s |
|---|---|---|
| Texture rate | 160.0 GTexel/s | 160.0 GTexel/s |
| FP32 (float) performance | 5.120 TFLOPS | 5.120 TFLOPS |
| FP64 (double) performance | 640.0 GFLOPS (1:8) | 320.0 GFLOPS (1:16) |
| FP16 (half) performance | — | 10.24 TFLOPS (2:1) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 275 mm 10.8 inches | — |
| Width | 109 mm 4.3 inches | — |
| Height | 36 mm 1.4 inches | — |
| TDP | 275 W | 100 W |
| Suggested PSU | 600 W | 300 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 1x HDMI2x DisplayPort |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board number | C679 | — |
API Support & Features
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.3 | 6.6 |
