NVIDIA GeForce GTX 850A vs NVIDIA GeForce 820M

VS

NVIDIA GeForce GTX 850A

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Boost Clock936MHz

256 additional rendering cores

NVIDIA GeForce 820M 's Advantages

Released 1 years late

Larger VRAM bandwidth (28.83GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 850A +92%

1.198 TFLOPS

GeForce 820M

0.622 TFLOPS

GeForce GTX 850A

VS

GeForce 820M

Graphics Card

Mar 2014

Release Date

Mar 2015

GeForce 800A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

902 MHz

Base Clock

-

936 MHz

Boost Clock

-

900 MHz

Memory Clock

901 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

28.83GB/s

Render Config

-

640

Shading Units

384

40

TMUs

32

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

6.480 GPixel/s

37.44 GTexel/s

Texture Rate

25.92 GTexel/s

-

1198 GFLOPS

FP32 (float)

622.1 GFLOPS

37.44 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

45W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

GK107

N15P-GT-A1

GPU Variant

-

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.27 billion

148 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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