AMD Radeon R9 270 vs AMD Radeon R9 M290X
What is the difference between AMD Radeon R9 270 and AMD Radeon R9 M290X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Curacao | GPU Name | Neptune |
| Curacao PRO (215-0848000) | Model number | Neptune XT (216-0847000) |
| GCN 1.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 2,800 million | Transistors | 2,800 million |
| 212 mm² | Die Size | 212 mm² |
Graphics Card
| Nov 13th, 2013 | Release Date | Jan 9th, 2014 |
| Volcanic Islands (R9 200) | Family | Crystal System (R9 M200) |
| End-of-life | Production | End-of-life |
| Sea Islands | Predecessor | Solar System |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 179.2 GB/s | Bandwidth | 153.6 GB/s |
Performance
| 29.60 GPixel/s | Pixel fillrate | 28.80 GPixel/s |
| 74.00 GTexel/s | Texture fillrate | 72.00 GTexel/s |
| 2.368 TFLOPS | FP32 (float) performance | 2.304 TFLOPS |
| 148.0 GFLOPS (1:16) | FP64 (double) performance | 144.0 GFLOPS (1:16) |
Clock Speeds
| 900 MHz | Base Clock | 850 MHz |
| 925 MHz | Boost Clock | 900 MHz |
| 1400 MHz 5.6 Gbps effective | Memory Clock | 1200 MHz 4.8 Gbps effective |
Render Config
| 1280 | Shading Units | 1280 |
| 80 | TMUs | 80 |
| 32 | ROPs | 32 |
| 20 | Compute Units | 20 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | MXM Module |
| 150 W | Thermal design power (TDP) | 100 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | No outputs |
| 1x 6-pin | Power Connectors | None |
| C630, C631, C632 | Board Number | C608 |
API support
| 12 (11_1) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 5.1 |