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Wednesday, March 12, 2014
Nvidia Brings Maxwell To New Energy-efficient Mobile GPUs


Nvidia's new GPU 800M series of mobile GPUs have been officially released, promising to bring high-quality gaming and energy efficiency to laptops.

The new series includes the GeForce GTX 860M, 850M, 840M and 830M GPUs, which are up to 60 percent faster and consume significantly less power than their predecessors, mainly due to their Maxwell architecture.

Nvidia has already shipped desktop GPUs based on Maxwell and their massive performance-per-watt increases seems to also be good on the mobile side.

The 850M has 640 cores and is 60 percent faster than its predecessor, the 750M, which shipped around the same time last year, according to Nvidia. The 860M has 1152 cores and is 40 percent faster than the older 760M.

The company also shipped the GTX 870M and 880M high-end graphics processors, which are based on the older Kepler architecture but have been clocked up to serve the needs of enthusiast laptops.

The 870M has 1344 cores and is 30 percent faster than the 770M, while the fastest performing 880M has 1536 cores and is 15 percent faster than the 780M.

NVIDIA GeForce GTX 800M Specifications
Product GTX 880M GTX 870M GTX 860M GTX 860M GTX 850M
Process 28nm 28nm 28nm 28nm 28nm
Architecture Kepler Kepler Kepler Maxwell Maxwell
Cores 1536 1344 1152 640 640
GPU Clock 954 + Boost 941 + Boost 797 + Boost 1029 + Boost 876 + Boost
RAM Clock 2.5GHz 2.5GHz 2.5GHz 2.5GHz 2.5GHz
RAM Interface 256-bit 192-bit 128-bit 128-bit 128-bit
RAM Technology GDDR5 GDDR5 GDDR5 GDDR5 GDDR5
Maximum RAM 4GB 3GB 2GB 2GB 2GB
Features GPU Boost 2.0
Battery Boost
GameStream
ShadowPlay
Optimus
PhysX
CUDA
SLI
GeForce Experience
GPU Boost 2.0
Battery Boost
GameStream
ShadowPlay
Optimus
PhysX
CUDA
SLI
GeForce Experience
GPU Boost 2.0
Battery Boost
GameStream
ShadowPlay
Optimus
PhysX
CUDA
SLI
GeForce Experience
GPU Boost 2.0
Battery Boost
GameStream
ShadowPlay
Optimus
PhysX
CUDA
SLI
GeForce Experience
GPU Boost 2.0
Battery Boost
GameStream
ShadowPlay
Optimus
PhysX
CUDA
GeForce Experience

 

NVIDIA GeForce 800M Specifications
Product 840M 830M 820M
Process 28nm 28nm 28nm
Architecture Maxwell Maxwell Fermi
Cores Unknown 96
GPU Clock 719-954MHz
RAM Clock 2000MHz
RAM Interface 64-bit 64-bit 64-bit
RAM Technology DDR3 DDR3 DDR3
Maximum RAM 2GB 2GB 2GB
Features GPU Boost 2.0
Optimus
PhysX
CUDA
GFE
GPU Boost 2.0
Optimus
PhysX
CUDA
GFE
GPU Boost 2.0
Optimus
PhysX
CUDA
GFE


The new GPUs support Nvidia's Battery Boost feature, which delivers up to double the gaming battery life, automatically. Instead of the notebook pushing every component to its max, Battery Boost targets a user defined frame rate, such as 30 FPS. The driver level governor takes over from there, and operates all the system components, including CPU, GPU, and memory at peak efficiency, while maintaining a playable experience.

Battery Boost will require the use of NVIDIA's GeForce Experience (GFE) software, which offers various settings and GFE game profiles for plugged in and battery power settings. Users will be able to customize the settings for each game within GFE.

Battery Boost works with the new 800M GPU, meaning that it's not a purely software driven solution.

The feature will be automatic - unplug and the Battery Boost settings are enabled; plug in and you switch back to the AC performance mode. However, users will not be able to switch settings on-the-fly while their game is running.

According to Nvidia's benchmarks, Assassin's Creed IV, Black Flag and Arkham Origins can be played at a 1080p resolution with the 850M and 860M, and at more frame rates per second with 870M and 880M. The 860M, 870M and 880M can also render graphics at a 4K resolution of 3840 x 2160 pixels.

Nvidia also measured 2 hours and 11 minutes of gameplay time for Borderlands 2 at 30 frames per second and a 1080p screen resolution on a laptop with an 860M, almost twice the battery life compared to predecessors.

NVIDIA GeForce 800M Specifications
Product 840M 830M 820M
Process 28nm 28nm 28nm
Architecture Maxwell Maxwell Fermi
Cores Unknown 96
GPU Clock 719-954MHz
RAM Clock 2000MHz
RAM Interface 64-bit 64-bit 64-bit
RAM Technology DDR3 DDR3 DDR3
Maximum RAM 2GB 2GB 2GB
Features GPU Boost 2.0
Optimus
PhysX
CUDA
GFE
GPU Boost 2.0
Optimus
PhysX
CUDA
GFE
GPU Boost 2.0
Optimus
PhysX
CUDA
GFE

 

Performance Estimates for the 800M Series
GPU % Increase Over
Next GPU
% of 820M % of GTX 760M
GTX 880M 20% 641% 227%
GTX 870M 35% 534% 189%
GTX 860M 15% 396% 140%
GTX 850M 70% 344% 122%
840M 35% 203% 72%
830M 50% 150% 53%
820M N/A 100% 35%


The GTX 880M will power Dell's Alienware 17, MSI's GT70 and Asustek's G750 17.3-inch laptops. The GTX 870M will be in Razer's Blade Pro and Blade laptops, while Lenovo's Y50 and Gigabyte's P34 will have the Maxwell-based 860M GPU. MSI will be also offering the G750JZ, G750JM and G750JS laptops with Nvidia GTX 880M, 870M, 860M GPUs.

The new laptops will be able to record gameplay through ShadowPlay and broadcast live or uploaded to the Twitch.tv interactive gaming website.




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