
NVIDIA GeForce 820M

2014年1月发布的NVIDIA GeForce 820M (或GT 820M)是一款支持DirectX 11的入门级显卡。它的核心基于28纳米制程的GF117核心(Fermi架构),并配备了64位的DDR3显存。除了略微不同的频率,820M几乎与前代的GeForce 710M和720M相同。 架构 GF117基于优化设计了的GF108 Fermi架构核心(GeForce GT 540M)提供96个着色器,16个TMU和4个ROP。每个着色器核心运行于显示核心的两倍频率,这个技术称作hot clocking。关于Fermi架构的更多信息可以在GT 430M显卡的页面找到。 应该注意的是,GF117核心并不提供专属的图形接口,所以只可与Optimus技术一同使用。 820M提供了对GPU Boost 2.0加速的支持,这项技术可以让显卡在笔记本的散热能力允许的情况下自动超频。800M系列显卡均提供了这个功能。 性能 在我们的游戏测试中,GeForce 820M的3D性能接近于前代的GT 720M和Intel Iris Graphics 5100。这表示它的性能属于入门级显卡的。最新的游戏(2013年和2014年)只可以在最低分辨率和细节设定下流畅运行。 特性 它的着色器核心(也称作CUDA核心)可以通过CUDA,OpenCL和DirectCompute 2.1的API界面用于一般运算。PhysX在理论上可以支持,但820M缓慢的速度无法为PhysX和现代游戏的3D渲染同时提供动力。根据Nvidia提供的信息,这款显卡不支持3D Vision。 功耗 GeForce 820M的功耗与前代的GT 720M相近。因此,这款显卡最适用于13寸或更大的笔记本电脑。
GeForce 800M Series
| ||||||||||||||||
| 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 | |||||||||||||||
| API | DirectX 12 (FL 11_0), Shader 5.0 | |||||||||||||||
| Power Consumption | 15 Watt | |||||||||||||||
| Transistor Count | 585 Million | |||||||||||||||
| Man. 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 | www.geforce.com | |||||||||||||||
Benchmarks
3DM Vant. Perf. total +
Cinebench R15 OpenGL 64 Bit +
* 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.

The Crew
2014
Far Cry 4
2014
F1 2014
2014
The Evil Within
2014
Ryse: Son of Rome
2014
Alien: Isolation
2014
Fifa 15
2014
Sims 4
2014
Risen 3: Titan Lords
2014
GRID: Autosport
2014
Watch Dogs
2014
Titanfall
2014
Thief
2014
X-Plane 10.25
2013
Call of Duty: Ghosts
2013
Battlefield 4
2013
F1 2013
2013
Fifa 14
2013
Total War: Rome II
2013
Saints Row IV
2013
Company of Heroes 2
2013
Metro: Last Light
2013
BioShock Infinite
2013
SimCity
2013
Tomb Raider
2013
Crysis 3
2013
Dead Space 3
2013
Far Cry 3
2012
Assassin´s Creed III
2012
Hitman: Absolution
2012
Dishonored
2012
F1 2012
2012
Counter-Strike: GO
2012
Sleeping Dogs
2012
Max Payne 3
2012
Dirt Showdown
2012
Diablo III
2012
Risen 2: Dark Waters
2012
Mass Effect 3
2012
Alan Wake
2012
Anno 2070
2011
Battlefield 3
2011
Batman: Arkham City
2011
Dirt 3
2011
StarCraft 2
2010For more games that might be playable and a list of all games and graphics cards visit our Gaming List
Notebook reviews with NVIDIA GeForce 820M graphics card


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