AMD Radeon R6 M255DX vs NVIDIA GeForce GT 645M
Comparative analysis of AMD Radeon R6 M255DX and NVIDIA GeForce GT 645M videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), PassMark - G2D Mark, PassMark - G3D Mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the AMD Radeon R6 M255DX
- Videocard is newer: launch date 1 year(s) 3 month(s) later
- Around 50% higher pipelines: 576 vs 384
- 6.4x better performance in Geekbench - OpenCL: 17123 vs 2683
- Around 7% better performance in GFXBench 4.0 - T-Rex (Frames): 3563 vs 3341
- Around 7% better performance in GFXBench 4.0 - T-Rex (Fps): 3563 vs 3341
| Specifications (specs) | |
| Launch date | 7 January 2014 vs 1 October 2012 |
| Pipelines | 576 vs 384 |
| Benchmarks | |
| Geekbench - OpenCL | 17123 vs 2683 |
| GFXBench 4.0 - T-Rex (Frames) | 3563 vs 3341 |
| GFXBench 4.0 - T-Rex (Fps) | 3563 vs 3341 |
Reasons to consider the NVIDIA GeForce GT 645M
- Around 81% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 1913 vs 1055
- Around 81% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 1913 vs 1055
- Around 90% better performance in GFXBench 4.0 - Manhattan (Frames): 3670 vs 1927
- Around 90% better performance in GFXBench 4.0 - Manhattan (Fps): 3670 vs 1927
- Around 41% better performance in PassMark - G2D Mark: 164 vs 116
- Around 55% better performance in PassMark - G3D Mark: 936 vs 605
| Benchmarks | |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1913 vs 1055 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1913 vs 1055 |
| GFXBench 4.0 - Manhattan (Frames) | 3670 vs 1927 |
| GFXBench 4.0 - Manhattan (Fps) | 3670 vs 1927 |
| PassMark - G2D Mark | 164 vs 116 |
| PassMark - G3D Mark | 936 vs 605 |
Compare benchmarks
GPU 1: AMD Radeon R6 M255DX
GPU 2: NVIDIA GeForce GT 645M
| Geekbench - OpenCL |
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| GFXBench 4.0 - Car Chase Offscreen (Frames) |
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| GFXBench 4.0 - Car Chase Offscreen (Fps) |
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| GFXBench 4.0 - Manhattan (Frames) |
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| GFXBench 4.0 - Manhattan (Fps) |
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| GFXBench 4.0 - T-Rex (Frames) |
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| GFXBench 4.0 - T-Rex (Fps) |
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| PassMark - G2D Mark |
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| PassMark - G3D Mark |
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| Name | AMD Radeon R6 M255DX | NVIDIA GeForce GT 645M |
|---|---|---|
| Geekbench - OpenCL | 17123 | 2683 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1055 | 1913 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1055 | 1913 |
| GFXBench 4.0 - Manhattan (Frames) | 1927 | 3670 |
| GFXBench 4.0 - Manhattan (Fps) | 1927 | 3670 |
| GFXBench 4.0 - T-Rex (Frames) | 3563 | 3341 |
| GFXBench 4.0 - T-Rex (Fps) | 3563 | 3341 |
| PassMark - G2D Mark | 116 | 164 |
| PassMark - G3D Mark | 605 | 936 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 8.493 | |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 285.42 | |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.863 | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 17.242 | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 19.116 |
Compare specifications (specs)
| AMD Radeon R6 M255DX | NVIDIA GeForce GT 645M | |
|---|---|---|
Essentials |
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| Architecture | GCN 1.0 | Kepler |
| Code name | Jet | GK107 |
| Launch date | 7 January 2014 | 1 October 2012 |
| Place in performance rating | 1186 | 1187 |
| Type | Laptop | Laptop |
Technical info |
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| Boost clock speed | 855 MHz | |
| Core clock speed | 780 MHz | |
| Manufacturing process technology | 28 nm | 28 nm |
| Pipelines | 576 | 384 |
| Transistor count | 1,040 million | 1,270 million |
| CUDA cores | 384 | |
| Floating-point performance | 544.5 gflops | |
| Texture fill rate | 22.7 billion / sec | |
| Thermal Design Power (TDP) | 32 Watt | |
Video outputs and ports |
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| Display Connectors | No outputs | No outputs |
| HDCP | ||
| HDMI | ||
| Maximum VGA resolution | Up to 2048x1536 | |
Compatibility, dimensions and requirements |
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| Interface | IGP | PCIe 3.0 x16 |
| Laptop size | medium sized | medium sized |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
API support |
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| DirectX | 12.0 (11_1) | 12 API |
| OpenGL | 4.5 | 4.5 |
| OpenCL | 1.1 | |
Memory |
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| Memory type | DDR3 | DDR3\GDDR5 |
| Shared memory | 1 | 0 |
| Maximum RAM amount | 2 GB | |
| Memory bus width | 128bit | |
| Memory clock speed | 1800 MHz | |
Technologies |
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| AMD Eyefinity | ||
| AppAcceleration | ||
| Enduro | ||
| Powerplay | ||
| 3D Blu-Ray | ||
| 3D Vision | ||
| CUDA | ||
| DirectCompute | ||
| DirectX 11 | DirectX 11 | |
| Optimus | ||
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