AMD Radeon E8870 vs AMD Radeon RX 640 Mobile
What is the difference between AMD Radeon E8870 and AMD Radeon RX 640 Mobile. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Saturn | GPU Name | Polaris 23 |
| Saturn PRO | Model number | Polaris 23 XT |
| GCN 2.0 | Architecture | GCN 4.0 |
| TSMC | Foundry | GlobalFoundries |
| 28 nm | Process Size | 14 nm |
| 2,080 million | Transistors | 2,200 million |
| 160 mm² | Die Size | 103 mm² |
Graphics Card
| Sep 29th, 2015 | Release Date | May 13th, 2019 |
| Embedded (8000) | Family | Mobility Radeon (M600) |
| Active | Production | Active |
| MXM-B (3.0) | Bus Interface | PCIe 3.0 x8 |
Memory
| 4 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 64 bit |
| 96.00 GB/s | Bandwidth | 48.00 GB/s |
Performance
| 16.00 GPixel/s | Pixel fillrate | 19.49 GPixel/s |
| 48.00 GTexel/s | Texture fillrate | 48.72 GTexel/s |
| 1.536 TFLOPS | FP32 (float) performance | 1.559 TFLOPS |
| 96.00 GFLOPS (1:16) | FP64 (double) performance | 97.44 GFLOPS (1:16) |
Clock Speeds
| 1500 MHz 6 Gbps effective | Memory Clock | 1500 MHz 6 Gbps effective |
Render Config
| 768 | Shading Units | 640 |
| 48 | TMUs | 40 |
| 16 | ROPs | 16 |
| 12 | Compute Units | 10 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 512 KB |
Board Design
| MXM Module | Slot Width | Dual-slot |
| 75 W | Thermal design power (TDP) | 50 W |
| No outputs | Display Connectors | No outputs |
| None | Power Connectors | None |
API support
| 12 (12_0) | DirectX | 12 (12_0) |
| 4.6 | OpenGL | 4.6 |
| 2.0 | OpenCL | 2.1 |
| 1.2 | Vulkan | 1.2 |
| 6.3 | Shader Model | 6.4 |