NVIDIA GeForce GTX 850M

NVIDIA GeForce GTX 850M

The NVIDIA GeForce GTX 850M is an upper mid-range, DirectX 11-compatible graphics card for laptops unveiled in March 2014. It is one of the first cards based on Nvidia's new Maxwell architecture (GM107 chip), but is still manufactured in 28 nm. The GTX 850M offers 640 shader units clocked at 876 MHz (+ Boost) as well as 2 GB of GDDR5 memory (128 bit, 5000 MHz effective). In addition, there is a slightly higher clocked version (936 MHz + Boost) using slower DDR3 memory (2000 MHz effective).

Architecture

Compared to Kepler, Maxwell has been optimized in several details to increase power efficiency. Smaller Streaming Multiprocessors (SMM) with only 128 ALUs (Kepler: 192) and an optimized scheduler should lead to better utilization of the shaders. Nvidia promises that a Maxwell SMM with 128 ALUs can offer 90 percent of the performance of a Kepler SMX with 192 ALUs. GM107 features 5 SMMs and thus 640 shader cores, 40 TMUs and 16 ROPs (128-bit interface).

Another optimization is the massively enlarged L2 cache (GM107: 2 MB). The larger size can process some of the memory traffic to allow for a relatively narrow memory interface without significantly reducing performance.

Similar to Fermi and Kepler, Maxwell / GM107 supports DirectX 11.2 with feature level 11.0 only.

Performance

Although the GTX 850M has less shaders, it clearly outperforms the old Kepler-based GeForce GTX 765M while drawing less power. Despite the lower core clock, the GDDR5 version usually takes the lead over the DDR3 model and sometimes even beats the Kepler variant of the GeForce GTX 860M. Many games of 2013/2014 (Tomb Raider or BioShock Infinite, etc.) can be played fluently in FullHD resolution and high detail settings. However, very demanding games such as Crysis 3 or Battlefield 4 will require lower resolutions and/or details.

Features

GM107 integrates the sixth generation of the PureVideo HD video engine (VP6), offering a better decoding performance for H.264 and MPEG-2 videos. Of course, VP6 supports all features of previous generations (4K support, PIP, video encoding via NVENC API). Unfortunately, HDMI 2.0 is still not supported.

Power Consumption

The power consumption of the GeForce GTX 850M should be somewhat below the old GTX 760M at about 40 - 45 Watts. Therefore, the 850M is best suited for 15-inch laptops or larger. The 800M series also supports Optimus to automatically switch between an integrated graphics card and the Nvidia GPU.

ManufacturerNVIDIA
GeForce GTX 800M Series

GeForce GTX 880M SLI

3072 @ 954MHz256 Bit @ 5000MHz

GeForce GTX 880M

1536 @ 954MHz256 Bit @ 5000MHz

GeForce GTX 870M

1344 @ 941MHz192 Bit @ 5000MHz

GeForce GTX 860M

640 @ 1029MHz128 Bit @ 5000MHz
GeForce GTX 850M 640 @ 876MHz128 Bit @ 2000 - 5000MHz
CodenameN15P-GT
ArchitectureMaxwell
Pipelines640 - unified
Core Speed *876 MHz
Memory Speed *2000 - 5000 MHz
Memory Bus Width128 Bit
Memory TypeDDR3, GDDR5
Max. Amount of Memory2048 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Transistors1870 Million
technology28 nm
FeaturesBattery Boost, GameStream, ShadowPlay, GPU Boost 2.0, Optimus, PhysX, CUDA, SLI, GeForce Experience
Notebook Sizemedium sized
Date of Announcement12.03.2014
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

Cinebench R15 - OpenGL 64Bit
0% 100%
min: 76.12      avg: 85.8 (75%)     median: 88.1 (77%)     max: 93.18 Points
Cinebench R15 - Ref. Match 64Bit
0% 100%
min: 99.6      avg: 99.6 (100%)     median: 99.6 (100%)     max: 99.6 Points
3DMark (2013) - Ice Storm Standard Graphics 1280x720
0% 100%
min: 74680      avg: 114723 (33%)     median: 110220 (32%)     max: 159269 Points
3DMark (2013) - Cloud Gate Standard Graphics 1280x720
0% 100%
min: 21536      avg: 23373.3 (30%)     median: 21873 (28%)     max: 26711 Points
3DMark (2013) - Fire Strike Standard Graphics 1920x1080
0% 100%
min: 3082      avg: 3284.3 (28%)     median: 3086 (26%)     max: 3685 Points
3DMark 11 - Performance 1280x720
0% 100%
min: 4270      avg: 4600 (36%)     median: 4659 (36%)     max: 4871 points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 4402      avg: 4506.7 (28%)     median: 4458 (28%)     max: 4660 points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 13226      avg: 14416 (39%)     median: 14416 (39%)     max: 15606 Points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 13877      avg: 13989.5 (32%)     median: 13989.5 (32%)     max: 14102 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 55.1      avg: 56 (34%)     median: 56 (34%)     max: 56.8 fps
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 50.19      avg: 56.5 (51%)     median: 56 (51%)     max: 63.34 Points
Cinebench R10 - Shading 32Bit
0% 100%
min: 7310      avg: 7310 (63%)     median: 7310 (63%)     max: 7310 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

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 detailled information on the benchmark results, click on the fps number.

The Elder Scrolls Online
The Elder Scrolls Online (2014)
low:
92  fps      Compare
med.:
81.5  fps      Compare
high:
65.3 72 ~ 69 fps      Compare
ultra:
33.7 37.1 ~ 35 fps      Compare
» With all tested laptops playable in detail settings high.
Titanfall
Titanfall (2014)
low:
60  fps      Compare
med.:
59.7  fps      Compare
high:
48.8 56.7 ~ 53 fps      Compare
ultra:
32.9 35.4 ~ 34 fps      Compare
» With all tested laptops playable in detail settings high.
Thief
Thief (2014)
low:
45.4  fps      Compare
med.:
39.6  fps      Compare
high:
35.7 37.6 ~ 37 fps      Compare
ultra:
18 18.1 ~ 18 fps      Compare
» With all tested laptops playable in detail settings high.
AssassinĀ“s Creed IV: Black Flag
med.:
47.2  fps      Compare
high:
32.8  fps      Compare
ultra:
18.4  fps      Compare
» With all tested laptops playable in detail settings med..
X-Plane 10.25
low:
79.9  fps      Compare
med.:
39  fps      Compare
high:
22 25.2 ~ 24 fps      Compare
ultra:
15.1 17 ~ 16 fps      Compare
» With all tested laptops playable in detail settings med..
Call of Duty: Ghosts
low:
71.1  fps      Compare
med.:
67  fps      Compare
high:
39.2 40.6 ~ 40 fps      Compare
ultra:
20.8 21 ~ 21 fps      Compare
» With all tested laptops playable in detail settings high.
Battlefield 4
low:
100.7  fps      Compare
med.:
81.1  fps      Compare
high:
55.4 56.4 ~ 56 fps      Compare
ultra:
20.4 20.7 ~ 21 fps      Compare
» With all tested laptops playable in detail settings high.
F1 2013
F1 2013 (2013)
low:
112  fps      Compare
med.:
93  fps      Compare
high:
85 113 ~ 99 fps      Compare
ultra:
66 69 ~ 68 fps      Compare
» With all tested laptops playable in detail settings ultra.
Saints Row IV
low:
54.9  fps      Compare
med.:
48.5  fps      Compare
high:
36 36.7 ~ 36 fps      Compare
ultra:
22.7 23.1 ~ 23 fps      Compare
» With all tested laptops playable in detail settings high.
Dota 2
Dota 2 (2013)
low:
110.2 118.8 ~ 115 fps      Compare
med.:
82 88 ~ 85 fps      Compare
ultra:
53.8 65.2 68.4 ~ 62 fps      Compare
» With all tested laptops playable in detail settings ultra.
GRID 2
GRID 2 (2013)
low:
110  fps      Compare
med.:
83.8  fps      Compare
high:
77.5 103.7 ~ 91 fps      Compare
ultra:
36.6 36.8 ~ 37 fps      Compare
» With all tested laptops playable in detail settings ultra.
Metro: Last Light
low:
56.1  fps      Compare
med.:
53.9  fps      Compare
high:
40.7 43.2 ~ 42 fps      Compare
ultra:
21.5 21.7 ~ 22 fps      Compare
» With all tested laptops playable in detail settings high.
BioShock Infinite
low:
138.4  fps      Compare
med.:
95.2  fps      Compare
high:
81.7 82.8 ~ 82 fps      Compare
ultra:
27.6 28.4 ~ 28 fps      Compare
» With all tested laptops playable in detail settings high.
Tomb Raider
Tomb Raider (2013)
low:
202  fps      Compare
med.:
127.5  fps      Compare