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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

Graphics Processor

GPU Name
GM107
GPU Variant
N15P-GT-A1
Architecture
Maxwell
Foundry
TSMC
Process Size
28 nm
Transistors
1,870 million
Die Size
148 mm²

Graphics Card

Release Date
Mar 12th, 2014
Generation
GeForce 800M
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%)
2002 MHz effective
5012 MHz 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) performance
1,155 GFLOPS
1,105 GFLOPS
FP64 (double) performance
36.08 GFLOPS
34.52 GFLOPS (1:32)

Board Design

Slot Width
IGP
TDP
45 W
Outputs
No outputs

Graphics Features

DirectX
12.0 (11_0)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.103
CUDA
5.0
Shader Model
5.1

Other retail boards based on this design (3)

Name GPU Clock Memory Clock Other Changes
ASUS GTX 850M 4 GB 902 MHz 1001 MHz 4 GB
Dell GTX 850M 4 GB 902 MHz 900 MHz 4 GB
Lenovo GTX 850M 863 MHz 1253 MHz GDDR5