NVIDIA GeForce 615 vs NVIDIA GeForce 840M

VS

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 615 and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 615 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)

NVIDIA GeForce 840M 's Advantages

Released 1 years and 10 months late

Boost Clock1124MHz

More VRAM (2GB vs 1GB)

336 additional rendering cores

Lower TDP (33W vs 49W)

Score

Benchmark

FP32 (float)

GeForce 615

0.127 TFLOPS

GeForce 840M +579%

0.863 TFLOPS

GeForce 615

VS

GeForce 840M

Graphics Card

May 2012

Release Date

Mar 2014

GeForce 600A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

900 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

16.02GB/s

Render Config

1

SM Count

-

Compute Units

-

48

Shading Units

384

8

TMUs

16

4

ROPs

8

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

Theoretical Performance

1.320 GPixel/s

Pixel Rate

8.992 GPixel/s

5.280 GTexel/s

Texture Rate

17.98 GTexel/s

-

FP16 (half)

-

126.7 GFLOPS

FP32 (float)

863.2 GFLOPS

10.56 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

GF108

GPU Name

GM108

-

GPU Variant

N15S-GT

Fermi

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.585 billion

Transistors

Unknown

116 mm²

Die Size

Unknown

Board Design

49W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

2.1

CUDA

5.0

5.1

Shader Model

5.1

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