NVIDIA GeForce 820A vs NVIDIA GeForce GT 745M
Comparative analysis of NVIDIA GeForce 820A and NVIDIA GeForce GT 745M 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: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), 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), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), 3DMark Fire Strike - Graphics Score.
Differences
Reasons to consider the NVIDIA GeForce 820A
- Videocard is newer: launch date 11 month(s) later
- 3x lower typical power consumption: 15 Watt vs 45 Watt
| Launch date | 17 March 2014 vs 1 April 2013 |
| Thermal Design Power (TDP) | 15 Watt vs 45 Watt |
Reasons to consider the NVIDIA GeForce GT 745M
- Around 8% higher core clock speed: 837 MHz vs 775 MHz
- 2.2x more texture fill rate: 26.78 GTexel / s vs 12.4 GTexel / s
- 4x more pipelines: 384 vs 96
- 2.2x better floating-point performance: 642.8 gflops vs 297.6 gflops
- 2x more maximum memory size: 2 GB vs 1 GB
- Around 97% better performance in PassMark - G3D Mark: 1093 vs 556
- Around 13% better performance in PassMark - G2D Mark: 179 vs 158
- Around 13% better performance in Geekbench - OpenCL: 3439 vs 3032
- Around 83% better performance in GFXBench 4.0 - Manhattan (Frames): 3133 vs 1716
- Around 83% better performance in GFXBench 4.0 - Manhattan (Fps): 3133 vs 1716
- Around 97% better performance in GFXBench 4.0 - T-Rex (Frames): 3352 vs 1705
- Around 97% better performance in GFXBench 4.0 - T-Rex (Fps): 3352 vs 1705
| Specifications (specs) | |
| Core clock speed | 837 MHz vs 775 MHz |
| Texture fill rate | 26.78 GTexel / s vs 12.4 GTexel / s |
| Pipelines | 384 vs 96 |
| Floating-point performance | 642.8 gflops vs 297.6 gflops |
| Maximum memory size | 2 GB vs 1 GB |
| Benchmarks | |
| PassMark - G3D Mark | 1093 vs 556 |
| PassMark - G2D Mark | 179 vs 158 |
| Geekbench - OpenCL | 3439 vs 3032 |
| GFXBench 4.0 - Manhattan (Frames) | 3133 vs 1716 |
| GFXBench 4.0 - Manhattan (Fps) | 3133 vs 1716 |
| GFXBench 4.0 - T-Rex (Frames) | 3352 vs 1705 |
| GFXBench 4.0 - T-Rex (Fps) | 3352 vs 1705 |
Compare benchmarks
GPU 1: NVIDIA GeForce 820A
GPU 2: NVIDIA GeForce GT 745M
| PassMark - G3D Mark |
|
|
||||
| PassMark - G2D Mark |
|
|
||||
| Geekbench - OpenCL |
|
|
||||
| GFXBench 4.0 - Manhattan (Frames) |
|
|
||||
| GFXBench 4.0 - Manhattan (Fps) |
|
|
||||
| GFXBench 4.0 - T-Rex (Frames) |
|
|
||||
| GFXBench 4.0 - T-Rex (Fps) |
|
|
| Name | NVIDIA GeForce 820A | NVIDIA GeForce GT 745M |
|---|---|---|
| PassMark - G3D Mark | 556 | 1093 |
| PassMark - G2D Mark | 158 | 179 |
| Geekbench - OpenCL | 3032 | 3439 |
| GFXBench 4.0 - Manhattan (Frames) | 1716 | 3133 |
| GFXBench 4.0 - Manhattan (Fps) | 1716 | 3133 |
| GFXBench 4.0 - T-Rex (Frames) | 1705 | 3352 |
| GFXBench 4.0 - T-Rex (Fps) | 1705 | 3352 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 10.489 | |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 202.905 | |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.66 | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 8.184 | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 19.323 | |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 2255 | |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 2255 | |
| 3DMark Fire Strike - Graphics Score | 0 |
Compare specifications (specs)
| NVIDIA GeForce 820A | NVIDIA GeForce GT 745M | |
|---|---|---|
Essentials |
||
| Architecture | Fermi 2.0 | Kepler |
| Code name | GF117 | GK107 |
| Launch date | 17 March 2014 | 1 April 2013 |
| Place in performance rating | 1285 | 1287 |
| Type | Desktop | Laptop |
Technical info |
||
| Core clock speed | 775 MHz | 837 MHz |
| Floating-point performance | 297.6 gflops | 642.8 gflops |
| Manufacturing process technology | 28 nm | 28 nm |
| Pipelines | 96 | 384 |
| Texture fill rate | 12.4 GTexel / s | 26.78 GTexel / s |
| Thermal Design Power (TDP) | 15 Watt | 45 Watt |
| Transistor count | 585 million | 1,270 million |
Video outputs and ports |
||
| Display Connectors | No outputs | No outputs |
| 7.1 channel HD audio on HDMI | ||
| DisplayPort Multimode (DP++) support | Up to 3840x2160 | |
| eDP 1.2 signal support | Up to 3840x2160 | |
| HDCP content protection | ||
| HDMI | ||
| LVDS signal support | Up to 1920x1200 | |
| TrueHD and DTS-HD audio bitstreaming | ||
| VGA аnalog display support | Up to 2048x1536 | |
Compatibility, dimensions and requirements |
||
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Bus support | PCI Express 3.0 | |
| Laptop size | medium sized | |
API support |
||
| DirectX | 12.0 (11_0) | 12 API |
| OpenGL | 4.6 | 4.5 |
| OpenCL | 1.1 | |
Memory |
||
| Maximum RAM amount | 1 GB | 2 GB |
| Memory bandwidth | 14.4 GB / s | 28.8 GB / s |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1800 MHz | 1800 MHz |
| Memory type | DDR3 | DDR3, GDDR5 |
| Shared memory | 0 | |
| Standard memory configuration | DDR3 / GDDR5 | |
Technologies |
||
| 3D Vision | ||
| 3D Vision / 3DTV Play | ||
| Blu-Ray 3D Support | ||
| CUDA | ||
| Direct Compute | ||
| FXAA | ||
| H.264, VC1, MPEG2 1080p video decoder | ||
| Optimus | ||
Navigation
Choose a GPU
Compare videocards
Compare NVIDIA GeForce 820A with others
NVIDIAGeForce 820A vs
NVIDIAGeForce3
NVIDIAGeForce 820A vs
AMDRadeon HD 7400G
NVIDIAGeForce 820A vs
NVIDIAGeForce GT 745M
NVIDIAGeForce 820A vs
AMDRadeon HD 8510G
NVIDIAGeForce 820A vs
NVIDIAGeForce GT 740
NVIDIAGeForce 820A vs
NVIDIAGRID M3-3020
