GeForce Go 6600 NPB 128M vs Iris Graphics 540

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Primary details

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

Place in performance ranking744not rated
Place by popularitynot in top-100not in top-100
ArchitectureGen. 9 Skylake (2015−2016)Curie (2003−2013)
GPU code nameSkylake GT3eNV43 A4
Market segmentLaptopDesktop
Release date1 September 2015 (9 years ago)29 September 2005 (18 years ago)

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 cores48no data
Core clock speed300 MHz375 MHz
Boost clock speed1050 MHzno data
Number of transistors189 million146 million
Manufacturing process technology14 nm110 nm
Power consumption (TDP)15 Wattno data
Texture fill rate50.403.000
Floating-point performance0.8064 gflopsno 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).

InterfacePCIe 3.0 x1PCIe 1.0 x16
Widthno dataIGP

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 typeeDRAMDDR
Maximum RAM amount64 MB128 MB
Memory bus widtheDRAM + 64/128 Bit128 Bit
Memory clock speedno data600 MHz
Memory bandwidthno data9.6 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 outputsNo outputs

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Quick Sync+no data

API compatibility

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

DirectX12 (12_1)9.0c (9_3)
Shader Model6.43.0
OpenGL4.62.1
OpenCL2.1N/A
Vulkan1.1.97N/A

Pros & cons summary


Recency 1 September 2015 29 September 2005
Maximum RAM amount 64 MB 128 MB
Chip lithography 14 nm 110 nm

Iris Graphics 540 has an age advantage of 9 years, and a 685.7% more advanced lithography process.

Go 6600 NPB 128M, on the other hand, has a 100% higher maximum VRAM amount.

We couldn't decide between Iris Graphics 540 and GeForce Go 6600 NPB 128M. We've got no test results to judge.

Be aware that Iris Graphics 540 is a notebook card while GeForce Go 6600 NPB 128M is a desktop one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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Intel Iris Graphics 540
Iris Graphics 540
NVIDIA GeForce Go 6600 NPB 128M
GeForce Go 6600 NPB 128M

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

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3.5 92 votes

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1.1 304 votes

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Questions & comments

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