ATI Radeon X1900 XT vs ATI HD 5550

Primary details

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

Place in the ranking1113not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.73no data
ArchitectureTeraScale 2 (2009−2015)R500 (2005−2007)
GPU code nameRedwoodR580
Market segmentDesktopDesktop
Release date9 February 2010 (14 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.

Pipelines / CUDA cores320no data
Core clock speed550 MHz625 MHz
Number of transistors627 million384 million
Manufacturing process technology40 nm90 nm
Power consumption (TDP)39 Watt100 Watt
Texture fill rate8.80010.00
Floating-point processing power0.352 TFLOPSno data
ROPs816
TMUs1616

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 2.0 x16PCIe 1.0 x16
Length165 mm242 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 typeGDDR5GDDR3
Maximum RAM amount2 GB256 MB
Memory bus width128 Bit256 Bit
Memory clock speed800 MHz725 MHz
Memory bandwidth51.2 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 HDMI, 1x VGA2x DVI, 1x S-Video
HDMI+-

API compatibility

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

DirectX11.2 (11_0)9.0c (9_3)
Shader Model5.03.0
OpenGL4.42.1 (full) 3.0 (partial)
OpenCL1.2N/A
VulkanN/AN/A

Pros & cons summary


Recency 9 February 2010 24 January 2006
Maximum RAM amount 2 GB 256 MB
Chip lithography 40 nm 90 nm
Power consumption (TDP) 39 Watt 100 Watt

ATI HD 5550 has an age advantage of 4 years, a 700% higher maximum VRAM amount, a 125% more advanced lithography process, and 156.4% lower power consumption.

We couldn't decide between Radeon HD 5550 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 HD 5550
Radeon HD 5550
ATI Radeon X1900 XT
Radeon X1900 XT

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Community ratings

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3.3 57 votes

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2.4 31 vote

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Questions & comments

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