NVIDIA GeForce GTX 850A vs NVIDIA GeForce 8400M G

VS

NVIDIA GeForce GTX 850A

NVIDIA GeForce 8400M G

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 256MB VRAM GeForce 8400M G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Released 6 years and 10 months late

Boost Clock936MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 6.400GB/s)

632 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 45W)

Score

Benchmark

FP32 (float)

GeForce GTX 850A +9115%

1.198 TFLOPS

GeForce 8400M G

0.013 TFLOPS

GeForce GTX 850A

VS

GeForce 8400M G

Graphics Card

Mar 2014

Release Date

May 2007

GeForce 800A

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

902 MHz

Base Clock

-

936 MHz

Boost Clock

-

900 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

1

640

Shading Units

8

40

TMUs

8

16

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

16 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

1.600 GPixel/s

37.44 GTexel/s

Texture Rate

3.200 GTexel/s

-

1198 GFLOPS

FP32 (float)

12.80 GFLOPS

37.44 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

10W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM107

GPU Name

G86

N15P-GT-A1

GPU Variant

NB8M-SE

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.87 billion

Transistors

0.21 billion

148 mm²

Die Size

127 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

1.1

5.1

Shader Model

4.0

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