AMD Radeon HD 8400 vs NVIDIA GeForce GT 640 OEM

AMD Radeon HD 8400
NVIDIA GeForce GT 640 OEM

General info

Comparison of Radeon HD 8400 and GeForce GT 640 OEM architecture, market type and release date.
Place in performance rating
 
not rated
Architecture
GCN
 
Kepler
Code name
Kabini
 
GK107
Type
Laptop
 
Desktop
Release date
23 May 2013
 
24 April 2012

Technical specs

Radeon HD 8400 and GeForce GT 640 OEM's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon HD 8400 and GeForce GT 640 OEM's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Pipelines
128
 
384
Core clock speed
600 MHz
 
797 MHz
Transistor count
n/d
 
1,270 million
Manufacturing process technology
28 nm
 
28 nm
Power consumption (TDP)
n/d
 
50 Watt
Texture fill rate
n/d
 
25.5 GTexel / s
Floating-point performance
n/d
 
612.1 gflops

Compatibility, dimensions and requirements

Information on Radeon HD 8400 and GeForce GT 640 OEM compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
Interface
n/d
 
PCIe 3.0 x16
Length
n/d
 
145 mm
Supplementary power connectors
n/d
 
None

Memory

Parameters of memory installed on Radeon HD 8400 and GeForce GT 640 OEM: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
n/d
 
DDR3
Maximum RAM amount
n/d
 
2 GB
Memory bus width
n/d
 
128 Bit
Memory clock speed
n/d
 
1782 MHz
Memory bandwidth
n/d
 
28.51 GB / s
Shared memory
+
 
n/d

Video outputs and ports

Types and number of video connectors present on Radeon HD 8400 and GeForce GT 640 OEM.
Display Connectors
n/d
 
1x DVI, 1x HDMI, 1x DisplayPort

API support

APIs supported by Radeon HD 8400 and GeForce GT 640 OEM, sometimes including their particular versions.
DirectX
DirectX 11.1, Shader 5.0
 
12.0 (11_0)
OpenGL
n/d
 
4.6

Rendering quality tests

GFXBench render quality
4502 −0.9%
 
4541 +0.9%
GFXBench high precision render quality
4502 −0.9%
 
4541 +0.9%

Mining hashrates

Cryptocurrency mining performance of Radeon HD 8400 and GeForce GT 640 OEM. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
n/d
 
23 Mh/s

Advantages of AMD Radeon HD 8400

Much newer (23 May 2013 vs 24 April 2012)

Advantages of NVIDIA GeForce GT 640 OEM

More pipelines (384 vs 128)

So, HD 8400 or GT 640 OEM?

Technical City couldn't decide between AMD Radeon HD 8400 and NVIDIA GeForce GT 640 OEM. We've got no test results to judge.
Be aware that Radeon HD 8400 is a notebook card while GeForce GT 640 OEM is a desktop one.
Should you still have questions on choice between Radeon HD 8400 and GeForce GT 640 OEM, ask them in Comments section, and we shall answer.

Cast your vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favourite video card.
AMD Radeon HD 8400
NVIDIA GeForce GT 640 OEM
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Advices and comments

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