AMD Radeon R7 450 OEM vs AMD Radeon R9 255 OEM
What is the difference between AMD Radeon R7 450 OEM and AMD Radeon R9 255 OEM. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Cape Verde | GPU Name | Cape Verde |
| Cape Verde PRX | Model number | Cape Verde PRX |
| GCN 1.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 1,500 million | Transistors | 1,500 million |
| 123 mm² | Die Size | 123 mm² |
Graphics Card
| Jun 30th, 2016 | Release Date | Dec 21st, 2013 |
| Arctic Islands (R7 400) | Family | Volcanic Islands (R9 200) |
| Active | Production | End-of-life |
| Pirate Islands | Predecessor | Sea Islands |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 128 bit |
| 72.00 GB/s | Bandwidth | 73.60 GB/s |
Performance
| 14.80 GPixel/s | Pixel fillrate | 14.88 GPixel/s |
| 29.60 GTexel/s | Texture fillrate | 29.76 GTexel/s |
| 947.2 GFLOPS | FP32 (float) performance | 952.3 GFLOPS |
| 59.20 GFLOPS (1:16) | FP64 (double) performance | 59.52 GFLOPS (1:16) |
Clock Speeds
| 1125 MHz 4.5 Gbps effective | Memory Clock | 1150 MHz 4.6 Gbps effective |
Render Config
| 512 | Shading Units | 512 |
| 32 | TMUs | 32 |
| 16 | ROPs | 16 |
| 8 | Compute Units | 8 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 65 W | Thermal design power (TDP) | 65 W |
| 250 W | Suggested PSU | 250 W |
| No outputs | Display Connectors | No outputs |
| 1x 6-pin | Power Connectors | 1x 6-pin |
| C750 C906 | Board Number | C750 |
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 |