GeForce4 MX + nForce2 vs GeForce GT 640 OEM

Primary details

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

Place in the ranking	935	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	2.50	no data
Architecture	Kepler (2012−2018)	Celsius (1999−2005)
GPU code name	GK107	Crush17
Market segment	Desktop	Desktop
Release date	24 April 2012 (12 years ago)	1 October 2002 (22 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 cores	384	no data
Core clock speed	797 MHz	200 MHz
Number of transistors	1,270 million	29 million
Manufacturing process technology	28 nm	150 nm
Power consumption (TDP)	50 Watt	no data
Texture fill rate	25.50	0.8
Floating-point processing power	0.6121 TFLOPS	no data
ROPs	16	2
TMUs	32	4

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).

Interface	PCIe 3.0 x16	AGP 4x
Length	145 mm	no data
Width	1-slot	IGP
Supplementary power connectors	None	no data

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 type	DDR3	System Shared
Maximum RAM amount	2 GB	System Shared
Memory bus width	128 Bit	System Shared
Memory clock speed	891 MHz	System Shared
Memory bandwidth	28.51 GB/s	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 Connectors	1x DVI, 1x HDMI, 1x DisplayPort	No outputs
HDMI	+	-

API compatibility

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

DirectX	12 (11_0)	8.0
Shader Model	5.1	no data
OpenGL	4.6	1.3
OpenCL	1.2	N/A
Vulkan	1.1.126	N/A
CUDA	3.0	-

Pros & cons summary

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Recency	24 April 2012	1 October 2002
Chip lithography	28 nm	150 nm

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