ATI Mobility Radeon HD 4830 vs ATI Mobility Radeon HD 4850 Mac Edition
Grafikprozessor
| GPU Name | M97 | M98 |
|---|---|---|
| Architektur | TeraScale | TeraScale |
| Hersteller | TSMC | TSMC |
| Prozessgröße | 40 nm | 55 nm |
| Transistoren | 826 million | 956 million |
| Chipgröße | 137 mm² | 256 mm² |
Mobile Grafik
| Veröffentlichungsdatum | Mar 3rd, 2009 | Aug 28th, 2009 |
|---|---|---|
| Generation | M9x (Mobility HD 4800) | M9x (Mobility HD 4800) |
| Produktion | End-of-life | End-of-life |
| Businterface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 2 in our database | 2 in our database |
| Vorgänger | M8x | M8x |
| Nachfolger | Manhattan | Manhattan |
Takt-Geschwindigkeiten
| GPU-Taktung | 550 MHz | 503 MHz |
|---|---|---|
| Speicher-Taktung | 700 MHz 2.8 Gbps effective | 850 MHz 1700 Mbps effective |
Speicher
| Speichergröße | 1024 MB | 512 MB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR3 |
| Speicherbus | 128 bit | 256 bit |
| Bandbreite | 44.80 GB/s | 54.40 GB/s |
Render-Konfiguration
| Shading-Einheiten | 640 | 800 |
|---|---|---|
| TMUs | 32 | 40 |
| ROPs | 16 | 16 |
| Compute Units | 8 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 256 KB |
Theoretische Leistung
| Pixelrate | 8.800 GPixel/s | 8.048 GPixel/s |
|---|---|---|
| Texturrate | 17.60 GTexel/s | 20.12 GTexel/s |
| FP32 (float) Leistung | 704.0 GFLOPS | 804.8 GFLOPS |
| FP64 (double) Leistung | 140.8 GFLOPS (1:5) | 161.0 GFLOPS (1:5) |
Boarddesign
| TDP | unknown | unknown |
|---|---|---|
| Ausgabe | No outputs | No outputs |
Grafik-Features
| DirectX | 10.1 (10_1) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| Shader-Modell | 4.1 | 4.1 |
