ATI Radeon X1900 XT vs ATI X1550

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Primary details

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

Place in the ranking1409not rated
Place by popularitynot in top-100not in top-100
Power efficiency0.43no data
ArchitectureUltra-Threaded SE (2005−2007)R500 (2005−2007)
GPU code nameRV516R580
Market segmentDesktopDesktop
Release date2007 (17 years ago)24 January 2006 (18 years ago)
Launch price (MSRP)no data$299

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.

Core clock speed550 MHz625 MHz
Number of transistors105 million384 million
Manufacturing process technology90 nm90 nm
Power consumption (TDP)27 Watt100 Watt
Texture fill rate2.20010.00
ROPs416
TMUs416

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 1.0 x16
Lengthno data242 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 6-pin

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 typeDDR2GDDR3
Maximum RAM amount256 MB256 MB
Memory bus width128 Bit256 Bit
Memory clock speed800 MBps725 MHz
Memory bandwidth12.8 GB/s46.4 GB/s

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 Connectors1x DVI, 1x VGA, 1x S-Video2x DVI, 1x S-Video

API compatibility

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

DirectX9.0c (9_3)9.0c (9_3)
Shader Model3.03.0
OpenGL2.12.1 (full) 3.0 (partial)
OpenCLN/AN/A
VulkanN/AN/A

Pros & cons summary


Power consumption (TDP) 27 Watt 100 Watt

ATI X1550 has 270.4% lower power consumption.

We couldn't decide between Radeon X1550 and Radeon X1900 XT. 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 X1550
Radeon X1550
ATI Radeon X1900 XT
Radeon X1900 XT

Comparisons with similar GPUs

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Community ratings

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3.6 47 votes

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2.4 32 votes

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Questions & comments

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