GeForce4 420 Go vs GeForce GT 440 Mac Edition

Primary details

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

Place in the ranking	not rated	1585
Place by popularity	not in top-100	not in top-100
Architecture	Fermi (2010−2014)	Celsius (1999−2005)
GPU code name	GF108	NV17 A5
Market segment	Desktop	Laptop
Release date	9 February 2011 (14 years ago)	6 February 2002 (23 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	96	2
Core clock speed	810 MHz	200 MHz
Boost clock speed	no data	190 MHz
Number of transistors	585 million	29 million
Manufacturing process technology	40 nm	150 nm
Power consumption (TDP)	65 Watt	no data
Texture fill rate	12.96	0.8
Floating-point processing power	0.311 TFLOPS	no data
ROPs	4	2
TMUs	16	4
L1 Cache	128 KB	no data
L2 Cache	256 KB	no data

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 1.0 x16	AGP 4x
Length	145 mm	no data
Width	1-slot	no data
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	DDR
Maximum RAM amount	1 GB	32 MB
Memory bus width	128 Bit	64 Bit
Memory clock speed	667 MHz	200 MHz
Memory bandwidth	21.34 GB/s	3.2 GB/s
Shared memory	no data	-

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	1x DVI, 1x HDMI, 1x VGA	No outputs
HDMI	+	-

API and SDK support

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	1.1	N/A
Vulkan	N/A	N/A
CUDA	2.1	-

Pros & cons summary

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Recency	9 February 2011	6 February 2002
Maximum RAM amount	1 GB	32 MB
Chip lithography	40 nm	150 nm

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