NVIDIA GeForce 840A vs NVIDIA GeForce 9800M GS

VS

NVIDIA GeForce 840A

NVIDIA GeForce 9800M GS

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 512MB VRAM GeForce 9800M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 5 years and 4 months late

Boost Clock1124MHz

More VRAM (2GB vs 512GB)

320 additional rendering cores

Lower TDP (33W vs 60W)

NVIDIA GeForce 9800M GS 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 16.02GB/s)

Score

Benchmark

FP32 (float)

GeForce 840A +407%

0.863 TFLOPS

GeForce 9800M GS

0.17 TFLOPS

GeForce 840A

VS

GeForce 9800M GS

Graphics Card

Mar 2014

Release Date

Nov 2008

GeForce 800A

Generation

GeForce 9M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

8

384

Shading Units

64

16

TMUs

32

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

64 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

8.480 GPixel/s

17.98 GTexel/s

Texture Rate

16.96 GTexel/s

-

863.2 GFLOPS

FP32 (float)

169.6 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

60W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

G94

-

GPU Variant

NB9E-GS1

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

Unknown

Transistors

0.505 billion

Unknown

Die Size

240 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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