Radeon 740M vs ATI Mobility X1400

Primary details

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

Place in the rankingnot rated503
Place by popularitynot in top-100not in top-100
Power efficiencyno data38.71
ArchitectureR500 (2005−2007)RDNA 3.0 (2022−2024)
GPU code nameM54Phoenix
Market segmentLaptopLaptop
Release date19 January 2006 (18 years ago)4 January 2023 (1 year 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 cores6256
Core clock speed445 MHz800 MHz
Boost clock speed445 MHz2500 MHz
Number of transistors107 million25,390 million
Manufacturing process technology90 nm4 nm
Power consumption (TDP)no data15 Watt
Texture fill rate1.78040.00
Floating-point processing powerno data2.56 TFLOPS
ROPs48
TMUs416
Ray Tracing Coresno data4

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 1.0 x16PCIe 4.0 x8
Supplementary power connectorsno dataNone

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 typeDDR2System Shared
Maximum RAM amount128 MBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed250 MHzSystem Shared
Memory bandwidth8 GB/sno data
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 outputsPortable Device Dependent

API compatibility

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

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.7
OpenGL2.04.6
OpenCLN/A2.1
VulkanN/A1.3

Pros & cons summary


Recency 19 January 2006 4 January 2023
Chip lithography 90 nm 4 nm

Radeon 740M has an age advantage of 16 years, and a 2150% more advanced lithography process.

We couldn't decide between Mobility Radeon X1400 and Radeon 740M. 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 X1400
Mobility Radeon X1400
AMD Radeon 740M
Radeon 740M

Comparisons with similar GPUs

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Community ratings

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3.4 29 votes

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3.8 68 votes

Rate Radeon 740M on a scale of 1 to 5:

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Questions & comments

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