Diamond HD 7870 Double Diamond Edition
Graphics Card Diamond HD 7870 Double Diamond Edition — Specifications, Tests & Benchmarks
Diamond HD 7870 Double Diamond Edition
Amd HD 7800
•
Pitcairn
•
05.03.2012
•
2 GB
•
GDDR5
•
256 bit
•
175W
🏆 Top #9140
Performance
Synthetic Score
5,479
Efficiency
mid
The Diamond HD 7870 Double Diamond Edition graphics adapter is based on the advanced GCN 1.0 architecture. AMD announced this model on 05.03.2012. At the core of the card is a chip created with modern lithography. The die houses 2.8 billion transistorsistors transistors, and its area is 212 mm². The core configuration includes 1280 shader units, 0 RT Cores for ray tracing, and 0 Tensor Cores for AI tasks. The graphics card is equipped with 2 GB of GDDR5 memory. A 256 bit-bit bus is used, providing bandwidth at 153.60 GB/s. The GPU's base clock speed is 1000 MHz, and in Boost mode, it can automatically increase up to 0 MHz. The TDP level for this model is 175 W, so for a build, it\'s advisable to choose quality cooling and a power supply unit of at least 450 W.
General Information
| Release Date | 05.03.2012 |
| Usage Class | Gaming (1080p) |
| Market Segment | Desktop |
| Series | Amd HD 7800 |
| GPU Variant | Pitcairn XT (215-0828047) |
GPU
| Architecture | GCN 1.0 |
| Codename | Pitcairn |
| Process Node | 28 nm (TSMC) |
| Transistor Count | 2,800,000.0 million |
| Die Size | 212 mm² |
| Transistor Density | 13,200,000 million / mm² |
Rendering Configuration
| Shading Units (ALU) | 1280 |
| Texture Mapping Units (TMU) | 80 |
| Render Output Units (ROP) | 32 |
| Compute Units (SM/CU) | 20 |
Clock Speeds
| Base Clock | 1000 MHz |
| Memory Clock (Actual) | 1200 MHz |
| Memory Clock (Effective) | 4800 MHz |
Memory
| Memory Capacity | 2 GB |
| Memory Type | GDDR5 |
| Memory Bus | 256 bit bit |
| Memory Bandwidth | 153.60 GB/s |
Cache Memory
| L1 Cache | 320 KB |
| L2 Cache | 512 KB |
Board Design & Power
| Interface | PCIe 3.0 x16 |
| Slot Width | 2 |
| Dimensions (L x W x H) | |
| Power Consumption (TDP) | 175 W |
| Recommended PSU | 450 W |
| Power Connectors | 2x 6-pin |
| Board Number | 109-C40147-00, 109-C40147-00B |
API Support
| DirectX | 12 (11_1) |
| OpenGL | 4.6 |
| OpenCL | |
| Vulkan | 1.2 |
| Shader Model |
Theoretical Performance
| Pixel Fill Rate | 33.6 GPixel/s |
| Texture Fill Rate | 84 GTexel/s |
| FP32 Performance (Float) | 2.69 TFLOPS |
| FP64 Performance (Double) | 168 GFLOPS (1:16) |
Synthetic Tests & Benchmarks
| TPU Index Score | 5.12% |
| Performance Tier | mid |
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