NVIDIA GeForce 840M vs NVIDIA GeForce 9800M GTX

VS

NVIDIA GeForce 840M NVIDIA GeForce 9800M GTX

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 1024MB VRAM GeForce 9800M GTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Released 5 years and 8 months late

Boost Clock1124MHz

More VRAM (2GB vs 1GB)

272 additional rendering cores

Lower TDP (33W vs 75W)

NVIDIA GeForce 9800M GTX 's Advantages

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

Score

Benchmark

FP32 (float)

GeForce 840M +208%

0.863 TFLOPS

GeForce 9800M GTX

0.28 TFLOPS

GeForce 840M

VS

GeForce 9800M GTX

Graphics Card

Mar 2014

Release Date

Jul 2008

GeForce 800M

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

1024MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

14

-

Compute Units

-

384

Shading Units

112

16

TMUs

56

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

64 KB

Theoretical Performance

8.992 GPixel/s

Pixel Rate

8.000 GPixel/s

17.98 GTexel/s

Texture Rate

28.00 GTexel/s

-

FP16 (half)

-

863.2 GFLOPS

FP32 (float)

280.0 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Graphics Processor

GM108

GPU Name

G92

N15S-GT

GPU Variant

NB9E-GTX

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

Unknown

Transistors

0.754 billion

Unknown

Die Size

324 mm²

Board Design

33W

TDP

75W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

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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