ATI Radeon HD 4850 vs NVIDIA GeForce GTX 745 OEM
What is the difference between ATI Radeon HD 4850 and NVIDIA GeForce GTX 745 OEM. Find out which graphics card has better performance.
Graphics Processor (GPU)
| RV770 | GPU Name | GM107 |
| RV770 PRO (215-0669065) | Model number | GM107-220-A2 |
| TeraScale | Architecture | Maxwell |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 28 nm |
| 956 million | Transistors | 1,870 million |
| 256 mm² | Die Size | 148 mm² |
Graphics Card
| Jun 25th, 2008 | Release Date | Feb 18th, 2014 |
| Radeon R700 (HD 4800) | Family | GeForce 700 |
| End-of-life | Production | End-of-life |
| Radeon R600 | Predecessor | GeForce 600 |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 512 MB | Memory Size | 4 GB |
| GDDR3 | Memory Type | DDR3 |
| 256 bit | Memory Bus | 128 bit |
| 63.55 GB/s | Bandwidth | 28.80 GB/s |
Performance
| 10.00 GPixel/s | Pixel fillrate | 16.53 GPixel/s |
| 25.00 GTexel/s | Texture fillrate | 24.79 GTexel/s |
| 1,000 GFLOPS | FP32 (float) performance | 793.3 GFLOPS |
| 200.0 GFLOPS (1:5) | FP64 (double) performance | 24.79 GFLOPS (1:32) |
Clock Speeds
| 993 MHz 1986 Mbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
| 625 MHz | GPU Clock | 1033 MHz |
Render Config
| 800 | Shading Units | 384 |
| 40 | TMUs | 24 |
| 16 | ROPs | 16 |
| 16 KB (per CU) | L1 Cache | 64 KB (per SMM) |
| 256 KB | L2 Cache | 2 MB |
Board Design
| Single-slot | Slot Width | Single-slot |
| 246 mm 9.7 inches | Length | 145 mm 5.7 inches |
| 110 W | Thermal design power (TDP) | 55 W |
| 300 W | Suggested PSU | 250 W |
| 2x DVI 1x S-Video | Display Connectors | 1x DVI 1x HDMI 1x VGA |
| 1x 6-pin | Power Connectors | None |
| B501-31 | Board Number | P2012 SKU 50 |
API support
| 10.1 (10_1) | DirectX | 12 (11_0) |
| 3.3 | OpenGL | 4.6 |
| 1.1 | OpenCL | 3.0 |
| N/A | Vulkan | 1.1 |
| 4.1 | Shader Model | 5.1 |