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Lenovo GTX 850M

Graphics Processor
GM107
Cores
640
TMUs
40
ROPs
16
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
128 bit
GPU Chip
GPU
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Graphics Processor

GPU Name
GM107
GPU Variant
N15P-GT-A1
Architecture
Maxwell
Foundry
TSMC
Process Size
28 nm
Transistors
1,870 million
Density
12.6M / mm²
Die Size
148 mm²
Chip Package
FCBGA-908

Mobile Graphics

Release Date
Mar 12th, 2014
Generation
GeForce 800M
Predecessor
GeForce 700M
Successor
GeForce 900M
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Clock Speeds

GPU Clock
902 MHz
863 MHz (-4%)
Memory Clock
1001 MHz
1253 MHz (+25%)
2 Gbps effective
5 Gbps effective

Memory

Memory Size
2 GB
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
Bandwidth
32.03 GB/s
80.19 GB/s

Render Config

Shading Units
640
TMUs
40
ROPs
16
SMM Count
5
L1 Cache
64 KB (per SMM)
L2 Cache
2 MB

Theoretical Performance

Pixel Rate
14.43 GPixel/s
13.81 GPixel/s
Texture Rate
36.08 GTexel/s
34.52 GTexel/s
FP32 (float)
1,155 GFLOPS
1,105 GFLOPS
FP64 (double)
36.08 GFLOPS
34.52 GFLOPS (1:32)

Board Design

Slot Width
IGP
TDP
45 W
Outputs
Portable Device Dependent
Power Connectors
None

Graphics Features

DirectX
12 (11_0)
OpenGL
4.6
OpenCL
3.0
Vulkan
1.3
CUDA
5.0
Shader Model
6.7 (5.1)

GM107 GPU Notes

NVENC: 4th Gen
NVDEC: 1st Gen
PureVideo HD: VP6
VDPAU: Feature Set E

Latest Drivers:
Windows Vista:
GeForce Release 365.19
Quadro Release R346 U7 (348.40) / R352 BETA (352.86)

Windows 7 / 8 / 8.1 (x32 / x64):
GeForce Release 391.35 / 474.89
GeForce Mobile Release 391.35 / 425.31
Quadro Release R390 U9 (392.37) / R440 U4 (441.66)
Quadro Mobile Release R390 U9 (392.37) / R418 U9 (426.78)

WIndows 10 / 11 (x32 / x64):
GeForce Release 391.35 / 474.89
GeForce Mobile Release 391.35 / 425.31
Quadro Release R390 U9 (392.37) / R470 U16 (474.82)
Quadro Mobile Release R390 U9 (392.37) / R418 U9 (426.78)

Other retail boards based on this design (3)

Name GPU Clock Memory Clock Other Changes
902 MHz 1001 MHz 4 GB
902 MHz 900 MHz 4 GB
Lenovo GTX 850M
863 MHz 1253 MHz GDDR5
Dec 5th, 2024 10:48 CST change timezone

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