Radeon 740M vs ATI X1900 XT

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Primary details

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

Place in the rankingnot rated502
Place by popularitynot in top-100not in top-100
Power efficiencyno data38.39
ArchitectureR500 (2005−2007)RDNA 3.0 (2022−2024)
GPU code nameR580Phoenix
Market segmentDesktopDesktop
Release date24 January 2006 (18 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$299 no data

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 coresno data256
Core clock speed625 MHz800 MHz
Boost clock speedno data2500 MHz
Number of transistors384 million25,390 million
Manufacturing process technology90 nm4 nm
Power consumption (TDP)100 Watt15 Watt
Texture fill rate10.0040.00
Floating-point processing powerno data2.56 TFLOPS
ROPs168
TMUs1616
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
Length242 mmno data
Width2-slotIGP
Supplementary power connectors1x 6-pinNone

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 typeGDDR3System Shared
Maximum RAM amount256 MBSystem Shared
Memory bus width256 BitSystem Shared
Memory clock speed725 MHzSystem Shared
Memory bandwidth46.4 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 Connectors2x DVI, 1x S-VideoPortable 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
OpenGL2.1 (full) 3.0 (partial)4.6
OpenCLN/A2.1
VulkanN/A1.3

Pros & cons summary


Recency 24 January 2006 4 January 2023
Chip lithography 90 nm 4 nm
Power consumption (TDP) 100 Watt 15 Watt

Radeon 740M has an age advantage of 16 years, a 2150% more advanced lithography process, and 566.7% lower power consumption.

We couldn't decide between Radeon X1900 XT 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 Radeon X1900 XT
Radeon X1900 XT
AMD Radeon 740M
Radeon 740M

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Community ratings

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2.4 31 vote

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3.8 68 votes

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Questions & comments

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