AMD Radeon Instinct MI8 vs AMD Radeon R9 280X
Grafikprozessor
| GPU Name | Fiji | Tahiti |
|---|---|---|
| GPU Variante | Fiji XT | Tahiti XTL (215-0821065) |
| Architektur | GCN 3.0 | GCN 1.0 |
| Hersteller | TSMC | TSMC |
| Prozessgröße | 28 nm | 28 nm |
| Transistoren | 8,900 million | 4,313 million |
| Chipgröße | 596 mm² | 352 mm² |
Grafikkarte
| Veröffentlichungsdatum | Dec 12th, 2016 | Oct 8th, 2013 |
|---|---|---|
| Generation | Radeon Instinct | Volcanic Islands |
| Produktion | End-of-life | End-of-life |
| Businterface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Originalpreis | — | 299 USD |
| Reviews | — | 105 in our database |
| Vorgänger | — | Sea Islands |
| Nachfolger | — | Pirate Islands |
Takt-Geschwindigkeiten
| GPU-Taktung | 1000 MHz | — |
|---|---|---|
| Speicher-Taktung | 500 MHz 1000 Mbps effective | 1500 MHz 6 Gbps effective |
| Basis-Taktfrequenz | — | 850 MHz |
| Boost-Takt | — | 1000 MHz |
Speicher
| Speichergröße | 4 GB | 3 GB |
|---|---|---|
| Speichertyp | HBM | GDDR5 |
| Speicherbus | 4096 bit | 384 bit |
| Bandbreite | 512.0 GB/s | 288.0 GB/s |
Render-Konfiguration
| Shading-Einheiten | 4096 | 2048 |
|---|---|---|
| TMUs | 256 | 128 |
| ROPs | 64 | 32 |
| Compute Units | 64 | 32 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 768 KB |
Theoretische Leistung
| Pixelrate | 64.00 GPixel/s | 32.00 GPixel/s |
|---|---|---|
| Texturrate | 256.0 GTexel/s | 128.0 GTexel/s |
| FP16 (half) Leistung | 8.192 TFLOPS (1:1) | — |
| FP32 (float) Leistung | 8.192 TFLOPS | 4.096 TFLOPS |
| FP64 (double) Leistung | 512.0 GFLOPS (1:16) | 1,024 GFLOPS (1:4) |
Boarddesign
| Steckplatzbreite | Dual-slot | Dual-slot |
|---|---|---|
| Länge | 152 mm 6 inches | 275 mm 10.8 inches |
| Breite | 111 mm 4.4 inches | 109 mm 4.3 inches |
| TDP | 175 W | 250 W |
| Vorgeschlagenes Netzteil | 450 W | 600 W |
| Ausgabe | No outputs | 2x DVI1x HDMI1x DisplayPort |
| Stromverbindung | 1x 8-pin | 1x 6-pin + 1x 8-pin |
| Höhe | — | 36 mm 1.4 inches |
| Board-Nummer | — | C386 |
Grafik-Features
| DirectX | 12 (12_0) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2 | 1.2 |
| Shader-Modell | 6.3 | 5.1 |
