ATI Radeon X1900 XT vs ATI HD 2900 XT

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Primary details

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

Place in the ranking932not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.04no data
ArchitectureTeraScale (2005−2013)R500 (2005−2007)
GPU code nameR600R580
Market segmentDesktopDesktop
Release date14 May 2007 (17 years ago)24 January 2006 (18 years ago)
Launch price (MSRP)$399 $299

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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 cores320no data
Core clock speed743 MHz625 MHz
Number of transistors720 million384 million
Manufacturing process technology80 nm90 nm
Power consumption (TDP)215 Watt100 Watt
Texture fill rate11.8910.00
Floating-point processing power0.4755 gflopsno data

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
Length241 mm242 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pin + 1x 8-pin1x 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 typeGDDR3GDDR3
Maximum RAM amount512 MB256 MB
Memory bus width512 Bit256 Bit
Memory clock speed1656 MHz1450 MBps
Memory bandwidth106.0 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 Connectors2x DVI, 1x S-Video2x DVI, 1x S-Video

API compatibility

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

DirectX10.0 (10_0)9.0c (9_3)
Shader Model4.03.0
OpenGL3.32.1 (full) 3.0 (partial)
OpenCLN/AN/A
VulkanN/AN/A

Pros & cons summary


Recency 14 May 2007 24 January 2006
Maximum RAM amount 512 MB 256 MB
Chip lithography 80 nm 90 nm
Power consumption (TDP) 215 Watt 100 Watt

ATI HD 2900 XT has an age advantage of 1 year, a 100% higher maximum VRAM amount, and a 12.5% more advanced lithography process.

ATI X1900 XT, on the other hand, has 115% lower power consumption.

We couldn't decide between Radeon HD 2900 XT 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 2900 XT
Radeon HD 2900 XT
ATI Radeon X1900 XT
Radeon X1900 XT

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.8 64 votes

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2.4 25 votes

Rate Radeon X1900 XT on a scale of 1 to 5:

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Questions & comments

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