GeForce 8400 GS PCI vs Radeon HD 6450 GDDR5

Primary details

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

Place in performance ranking1077not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.01no data
ArchitectureTerascale 2 (2009−2015)Tesla 2.0 (2007−2013)
GPU code nameCaicosGT218
Market segmentDesktopDesktop
Release date18 April 2011 (13 years ago)17 April 2007 (17 years ago)
Current price$129 $132

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores16016
Core clock speed750 MHz520 MHz
Number of transistorsno data260 million
Manufacturing process technology40 nm40 nm
Power consumption (TDP)27 Watt40 Watt
Texture fill rateno data4.160
Floating-point performanceno data39.36 gflops

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).

Interfaceno dataPCI
Lengthno data170 mm
Widthno data1-slot
Supplementary power connectorsno dataNone

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 typeGDDR5DDR3
Maximum RAM amount1 GB512 MB
Memory bus width64 Bit64 Bit
Memory clock speed900 MHz1000 MHz
Memory bandwidthno data8 GB/s
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 data1x DVI, 1x HDMI, 1x VGA
HDMIno data+

API compatibility

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

DirectX1111.1 (10_1)
Shader Modelno data4.1
OpenGLno data3.3
OpenCLno data1.1
Vulkanno dataN/A
CUDAno data1.2

Pros & cons summary


Recency 18 April 2011 17 April 2007
Maximum RAM amount 1 GB 512 MB
Power consumption (TDP) 27 Watt 40 Watt

We couldn't decide between Radeon HD 6450 GDDR5 and GeForce 8400 GS PCI. 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.


AMD Radeon HD 6450 GDDR5
Radeon HD 6450 GDDR5
NVIDIA GeForce 8400 GS PCI
GeForce 8400 GS PCI

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.


3.4 24 votes

Rate Radeon HD 6450 GDDR5 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.7 641 vote

Rate GeForce 8400 GS PCI 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.