GeForce4 420 Go vs ATI Mobility Radeon HD 4550

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
ArchitectureTerascale 1 (2010)Celsius (1999−2005)
GPU code nameM92NV17 A5
Market segmentLaptopLaptop
Release date1 January 2010 (14 years ago)6 February 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 cores802
Core clock speed550 MHz200 MHz
Boost clock speedno data190 MHz
Number of transistors242 million29 million
Manufacturing process technology55 nm150 nm
Texture fill rate4.4000.8
Floating-point processing power0.088 TFLOPSno data
ROPs42
TMUs84

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).

InterfaceMXM-IIAGP 4x
Supplementary power connectorsNoneno 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 typeGDDR3, DDR2, DDR3DDR
Maximum RAM amount512 MB32 MB
Memory bus width64 Bit64 Bit
Memory clock speed700 MHz200 MHz
Memory bandwidth11.2 GB/s3.2 GB/s
Shared memory--

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.

DirectX10.1 (10_1)8.0
Shader Model4.1no data
OpenGL3.31.3
OpenCL1.1N/A
VulkanN/AN/A

Pros & cons summary


Recency 1 January 2010 6 February 2002
Maximum RAM amount 512 MB 32 MB
Chip lithography 55 nm 150 nm

ATI Mobility HD 4550 has an age advantage of 7 years, a 1500% higher maximum VRAM amount, and a 172.7% more advanced lithography process.

We couldn't decide between Mobility Radeon HD 4550 and GeForce4 420 Go. 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.

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ATI Mobility Radeon HD 4550
Mobility Radeon HD 4550
NVIDIA GeForce4 420 Go
GeForce4 420 Go

Comparisons with similar GPUs

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Community ratings

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2.6 35 votes

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3.7 3 votes

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Questions & comments

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