GeForce 840M and Xbox 360 GPU - video card comparison

GeForce 840M

Xbox 360 GPU

Architecture

Maxwell (2014−2018)

TeraScale (2005−2013)

GPU code name

N15S-GT

Xenos

Market segment

Laptop

Desktop

Release date

March 2014

November 2005

Bus support

PCI Express 2.0, PCI Express 3.0

-

Interface

PCIe 3.0 x8

IGP

Boost clock speed

1124 MHz

-

Core clock speed

1029 MHz

500 MHz

Floating-point performance

863.2 gflops

240 gflops

Manufacturing process technology

28 nm

90 nm

Number of transistors

-

232 million

Pipelines / CUDA cores

384

240

Power consumption (TDP)

33 Watt

-

Texture fill rate

17.98

8.000

Memory type

DDR3

GDDR3

Maximum RAM amount

4 GB

512 MB

Memory bus width

64 Bit

128 Bit

Memory clock speed

2000 MHz

1400 MHz

Memory bandwidth

16.02 GB/s

22.4 GB/s

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

12 (11_0)

9.0c (9_3)

CUDA

+

-

OpenCL

1.2

-

OpenGL

4.5

N/A

Shader Model

5.1

-

Vulkan

1.1.126

-

GameWorks

+

-

GPU Boost

2.0

-

Optimus

+

-