ATI Radeon X850 XT AGP vs ATI X1900 XT

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureR500 (2005−2007)R400 (2004−2008)
GPU code nameR580R481
Market segmentDesktopDesktop
Release date24 January 2006 (18 years ago)28 February 2005 (19 years 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.

Core clock speed625 MHz520 MHz
Number of transistors384 million160 million
Manufacturing process technology90 nm130 nm
Power consumption (TDP)100 Watt69 Watt
Texture fill rate10.008.320
ROPs1616
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 1.0 x16AGP 8x
Length242 mmno data
Width2-slot2-slot
Supplementary power connectors1x 6-pin1x Molex

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 typeGDDR3GDDR3
Maximum RAM amount256 MB256 MB
Memory bus width256 Bit256 Bit
Memory clock speed725 MHz540 MHz
Memory bandwidth46.4 GB/s34.56 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 Connectors2x DVI, 1x S-Video1x DVI, 1x VGA, 1x S-Video

API compatibility

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

DirectX9.0c (9_3)9.0b (9_2)
Shader Model3.0no data
OpenGL2.1 (full) 3.0 (partial)2.0
OpenCLN/AN/A
VulkanN/AN/A

Pros & cons summary


Recency 24 January 2006 28 February 2005
Chip lithography 90 nm 130 nm
Power consumption (TDP) 100 Watt 69 Watt

ATI X1900 XT has an age advantage of 10 months, and a 44.4% more advanced lithography process.

ATI X850 XT AGP, on the other hand, has 44.9% lower power consumption.

We couldn't decide between Radeon X1900 XT and Radeon X850 XT AGP. 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
ATI Radeon X850 XT AGP
Radeon X850 XT AGP

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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