AMD Radeon HD 7850 vs AMD Radeon RX 480
Graphics Processor
| GPU model | Pitcairn | Ellesmere |
|---|---|---|
| GPU variant | Pitcairn PRO (215-0828062) | Polaris 10 XT (215-0876184) |
| Architecture | GCN 1.0 | GCN 4.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 2,800 million | 5,700 million |
| Die size | 212 mm² | 232 mm² |
Graphics Card
| Release date | Mar 5th, 2012 | Jun 29th, 2016 |
|---|---|---|
| Generation | Southern Islands | Arctic Islands |
| Production | End-of-life | Active |
| Launch price | 249 USD | 229 USD |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 71 in our database | 86 in our database |
| Predecessor | Northern Islands | Pirate Islands |
| Successor | Sea Islands | Polaris |
Clocks
| GPU clock | 860 MHz | — |
|---|---|---|
| Memory clock | 1200 MHz 4.8 Gbps effective | 2000 MHz 8 Gbps effective |
| Base clock | — | 1120 MHz |
| Boost clock | — | 1266 MHz |
Memory Configuration
| Memory size | 2 GB | 8 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 153.6 GB/s | 256.0 GB/s |
Render Configuration
| Shading units | 1024 | 2304 |
|---|---|---|
| TMUs | 64 | 144 |
| ROPs | 32 | 32 |
| Compute units | 16 | 36 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 2 MB |
Performance
| Pixel rate | 27.52 GPixel/s | 40.51 GPixel/s |
|---|---|---|
| Texture rate | 55.04 GTexel/s | 182.3 GTexel/s |
| FP32 (float) performance | 1.761 TFLOPS | 5.834 TFLOPS |
| FP64 (double) performance | 110.1 GFLOPS (1:16) | 364.6 GFLOPS (1:16) |
| FP16 (half) performance | — | 5.834 TFLOPS (1:1) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 210 mm 8.3 inches | 240 mm 9.4 inches |
| TDP | 130 W | 150 W |
| Suggested PSU | 300 W | 450 W |
| Outputs | 1x DVI1x HDMI2x mini-DisplayPort | 1x HDMI3x DisplayPort |
| Power connectors | 1x 6-pin | 1x 6-pin |
| Board number | C401-47 | C940, D009-47 |
| Width | — | 95 mm 3.7 inches |
| Height | — | 35 mm 1.4 inches |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
