AMD Radeon R9 380 vs AMD Radeon R9 390X
Graphics Processor
| GPU model | Antigua | Grenada |
|---|---|---|
| GPU variant | Antigua PRO (215-0877000) | Grenada XT (215-0880004) |
| Architecture | GCN 3.0 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 5,000 million | 6,200 million |
| Die size | 366 mm² | 438 mm² |
Graphics Card
| Release date | Jun 18th, 2015 | Jun 18th, 2015 |
|---|---|---|
| Generation | Pirate Islands | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch price | 199 USD | 429 USD |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 39 in our database | 60 in our database |
| Predecessor | Volcanic Islands | Volcanic Islands |
| Successor | Arctic Islands | Arctic Islands |
Clocks
| GPU clock | 970 MHz | 1050 MHz |
|---|---|---|
| Memory clock | 1375 MHz 5.5 Gbps effective | 1500 MHz 6 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 8 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 512 bit |
| Bandwidth | 176.0 GB/s | 384.0 GB/s |
Render Configuration
| Shading units | 1792 | 2816 |
|---|---|---|
| TMUs | 112 | 176 |
| ROPs | 32 | 64 |
| Compute units | 28 | 44 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 1024 KB |
Performance
| Pixel rate | 31.04 GPixel/s | 67.20 GPixel/s |
|---|---|---|
| Texture rate | 108.6 GTexel/s | 184.8 GTexel/s |
| FP16 (half) performance | 3.476 TFLOPS (1:1) | — |
| FP32 (float) performance | 3.476 TFLOPS | 5.914 TFLOPS |
| FP64 (double) performance | 217.3 GFLOPS (1:16) | 739.2 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 221 mm 8.7 inches | 275 mm 10.8 inches |
| Width | 111 mm 4.4 inches | 109 mm 4.3 inches |
| TDP | 190 W | 275 W |
| Suggested PSU | 450 W | 600 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | 2x 6-pin | 1x 6-pin + 1x 8-pin |
| Board number | C766 | C671, C679-37 |
| Height | — | 36 mm 1.4 inches |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.3 | 6.3 |
