AMD Radeon HD 7870 GHz Edition vs Intel Iris Xe MAX Graphics
Graphics Processor
| GPU model | Pitcairn | DG1 |
|---|---|---|
| GPU variant | Pitcairn XT (215-0828047) | — |
| Architecture | GCN 1.0 | Generation 12.1 |
| Foundry | TSMC | Intel |
| Manufacturing process | 28 nm | 10 nm |
| Number of transistors | 2,800 million | unknown |
| Die size | 212 mm² | 95 mm² |
Graphics Card
| Release date | Mar 5th, 2012 | — |
|---|---|---|
| Generation | Southern Islands | — |
| Production | End-of-life | — |
| Launch price | 349 USD | — |
| Interface | PCIe 3.0 x16 | — |
| Reviews | 95 in our database | — |
| Predecessor | Northern Islands | — |
| Successor | Sea Islands | — |
Clocks
| GPU clock | 1000 MHz | — |
|---|---|---|
| Memory clock | 1200 MHz 4.8 Gbps effective | 2133 MHz 4.3 Gbps effective |
| Base clock | — | 300 MHz |
| Boost clock | — | 1650 MHz |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | LPDDR4X |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 153.6 GB/s | 68.26 GB/s |
Render Configuration
| Shading units | 1280 | 768 |
|---|---|---|
| TMUs | 80 | 48 |
| ROPs | 32 | 24 |
| Compute units | 20 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 512 KB | 1024 KB |
| Execution units | — | 96 |
| gpu.details.l3-cache | — | 16 MB |
Performance
| Pixel rate | 32.00 GPixel/s | 39.60 GPixel/s |
|---|---|---|
| Texture rate | 80.00 GTexel/s | 79.20 GTexel/s |
| FP32 (float) performance | 2.560 TFLOPS | 2.534 TFLOPS |
| FP64 (double) performance | 160.0 GFLOPS (1:16) | 633.6 GFLOPS (1:4) |
| FP16 (half) performance | — | 5.069 TFLOPS (2:1) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 241 mm 9.5 inches | — |
| TDP | 175 W | 25 W |
| Suggested PSU | 450 W | — |
| Outputs | 1x DVI1x HDMI2x mini-DisplayPort | No outputs |
| Power connectors | 2x 6-pin | — |
| Board number | C401-47 | — |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
Other Features
Mobile graphics
| Release date | — | Oct 31st, 2020 |
|---|---|---|
| Generation | — | Iris Xe Graphics-M (Tiger Lake) |
| Production | — | Active |
| Interface | — | PCIe 4.0 x4 |
| Reviews | — | 1 in our database |
