NVIDIA GeForce 840A vs NVIDIA GeForce 315M

VS

NVIDIA GeForce 840A

NVIDIA GeForce 315M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 512MB VRAM GeForce 315M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 3 years and 2 months late

Boost Clock1124MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (16.02GB/s vs 12.80GB/s)

368 additional rendering cores

NVIDIA GeForce 315M 's Advantages

Lower TDP (14W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 840A +2112%

0.863 TFLOPS

GeForce 315M

0.039 TFLOPS

GeForce 840A

VS

GeForce 315M

Graphics Card

Mar 2014

Release Date

Jan 2011

GeForce 800A

Generation

GeForce 300M

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

64bit

16.02GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

384

Shading Units

16

TMUs

8

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

32 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

2.424 GPixel/s

17.98 GTexel/s

Texture Rate

4.848 GTexel/s

-

863.2 GFLOPS

FP32 (float)

38.78 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

14W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GT218

-

GPU Variant

N11M-GE

Maxwell

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

Unknown

Transistors

0.26 billion

Unknown

Die Size

57 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

1.2

5.1

Shader Model

4.1

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