AMD Radeon HD 7870 XT vs NVIDIA RTX A4 Mobile
What is the difference between AMD Radeon HD 7870 XT and NVIDIA RTX A4 Mobile. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | GA107 |
| GCN 1.0 | Architecture | Ampere |
| TSMC | Foundry | Samsung |
| 28 nm | Process Size | 8 nm |
| 4,313 million | Transistors | unknown |
| 352 mm² | Die Size | unknown |
Graphics Card
| Nov 19th, 2012 | Release Date | 2021 |
| Southern Islands (HD 7800) | Family | Quadro Mobile (Ax000) |
| End-of-life | Production | Active |
| PCIe 3.0 x16 | Bus Interface | PCIe 4.0 x16 |
Memory
| 2 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR6 |
| 256 bit | Memory Bus | 128 bit |
| 192.0 GB/s | Bandwidth | 224.0 GB/s |
Performance
| 31.20 GPixel/s | Pixel fillrate | 60.00 GPixel/s |
| 93.60 GTexel/s | Texture fillrate | 96.00 GTexel/s |
| 2.995 TFLOPS | FP32 (float) performance | 6.144 TFLOPS |
| 748.8 GFLOPS (1:4) | FP64 (double) performance | 96.00 GFLOPS (1:64) |
Clock Speeds
| 925 MHz | Base Clock | 1237 MHz |
| 975 MHz | Boost Clock | 1500 MHz |
| 1500 MHz 6 Gbps effective | Memory Clock | 1750 MHz 14 Gbps effective |
Render Config
| 1536 | Shading Units | 2048 |
| 96 | TMUs | 64 |
| 32 | ROPs | 40 |
| 16 KB (per CU) | L1 Cache | 128 KB (per SM) |
| 512 KB | L2 Cache | 2 MB |
Board Design
| Dual-slot | Slot Width | IGP |
| 185 W | Thermal design power (TDP) | unknown |
| 1x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | No outputs |
| 2x 6-pin | Power Connectors | None |
API support
| 12 (11_1) | DirectX | 12 Ultimate (12_2) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 6.6 |