NVIDIA GeForce GT 755M Mac Edition vs ATI Radeon HD 4890
What is the difference between NVIDIA GeForce GT 755M Mac Edition and ATI Radeon HD 4890. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK107 | GPU Name | RV790 |
| GT 755M | Model number | RV790 XT (215-0758016) |
| Kepler | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 55 nm |
| 1,270 million | Transistors | 959 million |
| 118 mm² | Die Size | 282 mm² |
Graphics Card
| Nov 8th, 2013 | Release Date | Apr 2nd, 2009 |
| GeForce 700M | Family | Radeon R700 (HD 4800) |
| End-of-life | Production | End-of-life |
| GeForce 600M | Predecessor | Radeon R600 |
| PCIe 3.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 256 bit |
| 80.00 GB/s | Bandwidth | 124.8 GB/s |
Performance
| 8.680 GPixel/s | Pixel fillrate | 13.60 GPixel/s |
| 34.72 GTexel/s | Texture fillrate | 34.00 GTexel/s |
| 833.3 GFLOPS | FP32 (float) performance | 1,360 GFLOPS |
| 34.72 GFLOPS (1:24) | FP64 (double) performance | 272.0 GFLOPS (1:5) |
Clock Speeds
| 1250 MHz 5 Gbps effective | Memory Clock | 975 MHz 3.9 Gbps effective |
| 1085 MHz | GPU Clock | 850 MHz |
Render Config
| 384 | Shading Units | 800 |
| 32 | TMUs | 40 |
| 16 | ROPs | 16 |
| 16 KB (per SMX) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| MXM Module | Slot Width | Dual-slot |
| 50 W | Thermal design power (TDP) | 190 W |
| No outputs | Display Connectors | 2x DVI 1x S-Video |
API support
| 12 (11_0) | DirectX | 10.1 (10_1) |
| 4.6 | OpenGL | 3.3 |
| 3.0 | OpenCL | 1.1 |
| 1.1 | Vulkan | N/A |
| 5.1 | Shader Model | 4.1 |