NVIDIA GeForce 820M
The NVIDIA GeForce 820M (or GT 820M) is an entry-level DirectX 12 compatible graphics card announced in January 2014. Its core is based on the 28nm GF117 chip (Fermi architecture) and is equipped with 64-bit DDR3 memory. Besides the slightly different clock rate, the 820M is almost identical to the old GeForce 710M and GT 720M.
The GF117 is based on the optimized GF108 Fermi chip (GeForce GT 540M) and offers 96 shaders, 16 TMUs and 4 ROPs. Each shader core is clocked twice as fast as the rest of the graphics chip, a technique known as hot clocking. More detailed information on Fermi can be found on the GT 435M GPU page.
It should be noted that the GF117 does not offer dedicated graphic ports and can therefore only be used in conjunction with Optimus.
The 820M supports GPU Boost 2.0, which can automatically overclock the card if the laptop cooling system allows it. This feature is available on any notebook with a graphics card of the 800M series.
Performance
In our gaming benchmarks, the 3D performance of the GeForce 820M is similar to the former GT 720M and the Intel Iris Graphics 5100. This places the card in the entry level segment. Current games (as of 2013/2014) will run fluently only in low settings and resolutions.
The shader cores (also called CUDA cores) can be used for general calculations with APIs such as CUDA, DirectCompute 2.1 and OpenCL. PhysX is theoretically possible, but the 820M is too slow to handle both PhysX and 3D rendering in modern games. 3D Vision is not supported according to Nvidia.
Power consumption
The power consumption of the Geforce 820M should be similar to the old GT 720M. As a result, the GPU is best suited for notebooks 13 inches in size or greater.
| Manufacturer | NVIDIA |
| GeForce 800M Series | GeForce 845M  | 384 @ 1.07 - 1.15 GHz | 64/128 Bit @ 2000 - 5000 MHz | | GeForce 840M | 384 @ 1.03 GHz | 64 Bit @ 2000 MHz | | GeForce 830M | 256 @ 1.03 - 1.15 GHz | 64 Bit @ 1800 MHz | | GeForce 825M | 384 @ 0.85 GHz | 64 Bit @ 1800 MHz | | GeForce 820M | 96 @ 0.78 GHz | 64 Bit @ 1800 MHz |
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| Codename | N15V-GM |
| Architecture | Fermi |
| Pipelines | 96 - unified |
| Core Speed | 775 MHz |
| Shader Speed | 1550 MHz |
| Memory Speed | 1800 MHz |
| Memory Bus Width | 64 Bit |
| Memory Type | DDR3 |
| Max. Amount of Memory | 2048 MB |
| Shared Memory | no |
| DirectX | DirectX 12 (FL 11_0), Shader 5.0 |
| Transistor Count | 585 Million |
| technology | 28 nm |
| Features | PhysX, Verde Drivers, CUDA, Play, Optimus, GPU Boost 2.0, GameWorks |
| Date of Announcement | 07.01.2014 |
| Link to Manufacturer Page | ttp://www.geforce.com/hardware/notebook-... |
Benchmarks
Performance Rating - 3DMark 11 + Fire Strike + Time Spy
5.8 pt (6%)
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3DMark - 3DMark Cloud Gate Score
min: 3942 avg: 4559 median: 4520.5 (6%) max: 6001 Points
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3DMark - 3DMark Cloud Gate Graphics
min: 5398 avg: 5968 median: 6073.5 (3%) max: 6152 Points
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3DMark - 3DMark Fire Strike Standard Score
min: 763 avg: 830 median: 829 (2%) max: 888 Points
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3DMark - 3DMark Fire Strike Standard Graphics
min: 817 avg: 884 median: 897 (2%) max: 903 Points
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3DMark - 3DMark Ice Storm Graphics
min: 48165 avg: 62879 median: 63709.5 (8%) max: 68464 Points
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3DMark 11 - 3DM11 Performance Score
min: 1302 avg: 1382 median: 1383 (3%) max: 1500 Points
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3DMark 11 - 3DM11 Performance GPU
min: 1194 avg: 1259 median: 1266.5 (2%) max: 1280 Points
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3DMark Vantage
3DM Vant. Perf. total +3DMark Vantage - 3DM Vant. Perf. total
min: 4965 avg: 5195 median: 5105.5 (5%) max: 5603 Points
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NVIDIA GeForce GT 240 GDDR5 1%
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3DM Vant. Perf. GPU no PhysX +3DMark Vantage - 3DM Vant. Perf. GPU no PhysX
min: 4092 avg: 4277 median: 4254 (4%) max: 4484 Points
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NVIDIA GeForce GT 240 GDDR5 2%
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3DMark 03 - 3DMark 03 - Standard
16401 Points (9%)
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3DMark 05 - 3DMark 05 - Standard
14352 Points (21%)
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3DMark 06 3DMark 06 - Standard 1280x1024 +min: 6362 avg: 7350 median: 7518 (14%) max: 8284 Points
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Unigine Heaven 2.1 - Heaven 2.1 high
16.4 fps (3%)
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ATI Radeon HD 5570 -4%
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Windows 7 Experience Index - Win7 Gaming graphics
6.6 Points (84%)
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Windows 7 Experience Index - Win7 Graphics
5.1 Points (65%)
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Cinebench R10 Cinebench R10 Shading (32bit) +Cinebench R10 - Cinebench R10 Shading (32bit)
min: 38.75 avg: 4363 median: 5557 (26%) max: 6433 points
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Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +Cinebench R11.5 - Cinebench R11.5 OpenGL 64 Bit
min: 22.43 avg: 27.9 median: 27.8 (12%) max: 31.67 fps
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Cinebench R15
Cinebench R15 OpenGL 64 Bit +Cinebench R15 - Cinebench R15 OpenGL 64 Bit
min: 24.93 avg: 34.5 median: 35.6 (10%) max: 38.02 fps
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Cinebench R15 OpenGL Ref. Match 64 Bit +Cinebench R15 - Cinebench R15 OpenGL Ref. Match 64 Bit
99.6 % (100%)
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LuxMark v2.0 64Bit - LuxMark v2.0 Room GPU
min: 204 avg: 224 median: 223.5 (2%) max: 243 Samples/s
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LuxMark v2.0 64Bit - LuxMark v2.0 Sala GPU
min: 343 avg: 380 median: 379.5 (1%) max: 416 Samples/s
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ComputeMark v2.1 - ComputeMark v2.1 Result
min: 714 avg: 718 median: 718 (2%) max: 722 points
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- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
Game Benchmarks
The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» With all tested laptops playable in detail settings low.
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» With all tested laptops playable in detail settings high.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» With all tested laptops playable in detail settings low.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» With all tested laptops playable in detail settings high.
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» With all tested laptops playable in detail settings med..
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» With all tested laptops playable in detail settings low.
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» With all tested laptops playable in detail settings med..
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» The benchmarks indicate that the game is not playable in the tested settings.
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» The benchmarks indicate that the game is not playable in the tested settings.
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» With all tested laptops playable in detail settings low.
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