ATI FireGL X3-256 vs GeForce 6800 Ultra

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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
ArchitectureCurie (2003−2013)R400 (2004−2008)
GPU code nameNV45R420
Market segmentDesktopWorkstation
Release date26 July 2004 (20 years ago)3 August 2004 (20 years ago)
Launch price (MSRP)$499 $1,099

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 speed425 MHz491 MHz
Number of transistors222 million160 million
Manufacturing process technology130 nm130 nm
Power consumption (TDP)81 Watt57 Watt
Texture fill rate6.8005.892
ROPs1612
TMUs1612

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
Length197 mmno data
Width2-slot1-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 speed550 MHz454 MHz
Memory bandwidth35.2 GB/s29.06 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 3D and general-purpose computing APIs, including their specific versions.

DirectX9.0c (9_3)9.0b (9_2)
Shader Model3.0no data
OpenGL2.12.0
OpenCLN/AN/A
VulkanN/AN/A

Pros & cons summary


Power consumption (TDP) 81 Watt 57 Watt

ATI FireGL X3-256 has 42.1% lower power consumption.

We couldn't decide between GeForce 6800 Ultra and FireGL X3-256. We've got no test results to judge.

Be aware that GeForce 6800 Ultra is a desktop card while FireGL X3-256 is a workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce 6800 Ultra
GeForce 6800 Ultra
ATI FireGL X3-256
FireGL X3-256

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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