Radeon R4 Mobile Graphics vs GeForce 8400M GT

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureTesla (2006−2010)GCN 2.0 (2013−2017)
GPU code nameG86Spectre SL
Market segmentLaptopLaptop
Release date9 May 2007 (17 years ago)17 September 2014 (10 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores16192
Core clock speed450 MHz533 MHz
Boost clock speedno data655 MHz
Number of transistors210 million2,410 million
Manufacturing process technology80 nm28 nm
Power consumption (TDP)14 Watt17 Watt
Texture fill rate3.6006.396
Floating-point processing power0.0288 TFLOPS0.2047 TFLOPS
ROPs48
TMUs812

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 1.0 x16IGP

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR3System Shared
Maximum RAM amount512 MBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed600 MHzSystem Shared
Memory bandwidth19.2 GB/sno data
Shared memory-no data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputsNo outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.1 (10_0)12 (12_0)
Shader Model4.06.0
OpenGL3.34.6
OpenCL1.12.0
VulkanN/A1.2.131
CUDA1.1-

Pros & cons summary


Recency 9 May 2007 17 September 2014
Chip lithography 80 nm 28 nm
Power consumption (TDP) 14 Watt 17 Watt

8400M GT has 21.4% lower power consumption.

R4 Mobile Graphics, on the other hand, has an age advantage of 7 years, and a 185.7% more advanced lithography process.

We couldn't decide between GeForce 8400M GT and Radeon R4 Mobile Graphics. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce 8400M GT
GeForce 8400M GT
AMD Radeon R4 Mobile Graphics
Radeon R4 Mobile Graphics

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.5 22 votes

Rate GeForce 8400M GT on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
2.1 53 votes

Rate Radeon R4 Mobile Graphics on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.