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NVIDIA GeForce 845M

The NVIDIA GeForce 845M is a mid-range, DirectX 12-compatible graphics card for laptops unveiled in spring 2014. It is one of the first cards based on Nvidia's new Maxwell architecture, but is still manufactured in 28 nm. In addition to a version based on GM107 (partially deactivated to 384 ALUs, 128-bit, DDR3 memory), there is also another version using the GM108 chip (384 Shader, 64-bit, GDDR5 memory). Both models offer approximately the same performance.

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.

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, the GM107 and GM108 support DirectX 12 with feature level 11.0 only.

Performance

Thanks to the 128-bit memory interface (respectively the GDDR5 memory of the GM108 model), the GeForce 845M offers about 30 percent more performance than the GeForce 840M. However, a GeForce GTX 850M is still an additional 50 percent faster. Many games of 2013/2014 (Tomb Raider or BioShock Infinite, etc.) can be played fluently in 1366 x 768 and high detail settings. Very demanding games such as Crysis 3 or Battlefield 4 will require lower resolutions and/or details.

Features

GM107/108 integrate 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 845M should be in a range of about 30 - 35 Watts. Therefore, the card is best suited for 14-inch laptops or larger. The 800M series also supports Optimus to automatically switch between an integrated graphics card and the Nvidia GPU.

GeForce 800M Series

GeForce 845M 384 @ 1.07 - 1.15 GHz64/128 Bit @ 2000 - 5000 MHz
GeForce 840M compare 384 @ 1.03 GHz64 Bit @ 2000 MHz
GeForce 830M compare 256 @ 1.03 - 1.15 GHz64 Bit @ 1800 MHz
GeForce 825M compare 384 @ 0.85 GHz64 Bit @ 1800 MHz
GeForce 820M compare 96 @ 0.78 GHz64 Bit @ 1800 MHz
ArchitectureMaxwell
Pipelines384 - unified
Core Speed1071 - 1150 (Boost) MHz
Memory Speed2000 - 5000 MHz
Memory Bus Width64/128 Bit
Memory TypeDDR3, GDDR5
Max. Amount of Memory2048 MB
Shared Memoryno
APIDirectX 12 (FL 11_0), Shader 5.0, OpenGL 4.4
technology28 nm
FeaturesGPU Boost 2.0, Optimus, PhysX, CUDA, GeForce Experience
Notebook Sizemedium sized
Date of Announcement12.03.2014

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
1.1 pt (3%)
Cinebench R10 Cinebench R10 Shading (32bit) +
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +
Cinebench R15
Cinebench R15 OpenGL 64 Bit +
Cinebench R15 OpenGL Ref. Match 64 Bit +
- 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.

low 1024x768
50.7  fps    + Compare
med. 1366x768
32.2  fps    + Compare
high 1920x1080
14  fps    + Compare
ultra 1920x1080
9.3  fps    + Compare
» With all tested laptops playable in detail settings low.
Evolve

Evolve

2015
low 1024x768
27.2  fps    + Compare
med. 1366x768
20  fps    + Compare
high 1920x1080
10.3  fps    + Compare
ultra 1920x1080
10.1  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
31.5  fps    + Compare
med. 1366x768
27  fps    + Compare
high 1920x1080
19  fps    + Compare
ultra 1920x1080
12.7  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
50.4  fps    + Compare
med. 1366x768
30.1  fps    + Compare
high 1920x1080
20.1  fps    + Compare
ultra 1920x1080
12.8  fps    + Compare
» With all tested laptops playable in detail settings low.
F1 2014

F1 2014

2014
med. 1366x768
68.5  fps    + Compare
high 1920x1080
33.8  fps    + Compare
ultra 1920x1080
27.4  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1280x720
58.4  fps    + Compare
med. 1344x756
41.2  fps    + Compare
high 1920x1080
22.4  fps    + Compare
» With all tested laptops playable in detail settings med..
Fifa 15

Fifa 15

2014
high 1366x768
64.1  fps    + Compare
ultra 1920x1080
41.2  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Sims 4

Sims 4

2014
med. 1366x768
56.2  fps    + Compare
high 1920x1080
30.7  fps    + Compare
ultra 1920x1080
26.3  fps    + Compare
» With all tested laptops playable in detail settings med..
Thief

Thief

2014
low 1024x768
31.3  fps    + Compare
med. 1366x768
20.1  fps    + Compare
high 1366x768
17.3  fps    + Compare
ultra 1920x1080
8.3  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
56.4  fps    + Compare
med. 1366x768
37  fps    + Compare
high 1366x768
27.1  fps    + Compare
ultra 1920x1080
10.9  fps    + Compare
» With all tested laptops playable in detail settings med..
Dota 2

Dota 2

2013
med. 1366x768
61.5  fps    + Compare
ultra 1920x1080
28  fps    + Compare
» With all tested laptops playable in detail settings med..
med. 1366x768
42.7  fps    + Compare
high 1366x768
39.3  fps    + Compare
ultra 1920x1080
13.9  fps    + Compare
» With all tested laptops playable in detail settings high.
med. 1366x768
47.3  fps    + Compare
high 1366x768
36.7  fps    + Compare
ultra 1920x1080
14.8  fps    + Compare
» With all tested laptops playable in detail settings high.
Crysis 3

Crysis 3

2013
med. 1366x768
29.4  fps    + Compare
high 1366x768
18.9  fps    + Compare
ultra 1920x1080
6.3  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
lowmed.highultraQHD4K
Battlefield Hardline50.732.2149.3
Evolve27.22010.310.1
Dragon Age: Inquisition31.5271912.7
Call of Duty: Advanced Warfare50.430.120.112.8
F1 20146248
Alien: Isolation68.533.827.4
Middle-earth: Shadow of Mordor58.441.222.4
Fifa 1564.141.2
Sims 456.230.726.3
Thief31.320.117.38.3
Battlefield 456.43727.110.9
Dota 261.528
BioShock Infinite42.739.313.9
Tomb Raider47.336.714.8
Crysis 329.418.96.3
< 30 fps
< 60 fps
< 120 fps
≥ 120 fps
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Radeon PRO W6600M *

Class 3

UHD Graphics 32EUs
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* Approximate position of the graphics adapter