GeForce 6800 Ultra DDL vs ATI Radeon X850 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
ArchitectureR400 (2004−2008)Curie (2003−2013)
GPU code nameR480NV40
Market segmentDesktopDesktop
Release date1 December 2004 (19 years ago)14 April 2004 (20 years ago)
Launch price (MSRP)no data$599

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 speed520 MHz400 MHz
Number of transistors160 million222 million
Manufacturing process technology130 nm130 nm
Power consumption (TDP)69 Watt100 Watt
Texture fill rate8.3206.400
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 Pro 8x
Lengthno data305 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pinNone

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 speed540 MHz550 MHz
Memory bandwidth34.56 GB/s35.2 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

API compatibility

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

DirectX9.0b (9_2)9.0c (9_3)
Shader Modelno data3.0
OpenGL2.02.1
OpenCLN/AN/A
VulkanN/AN/A

Pros & cons summary


Recency 1 December 2004 14 April 2004
Power consumption (TDP) 69 Watt 100 Watt

ATI X850 XT has an age advantage of 7 months, and 44.9% lower power consumption.

We couldn't decide between Radeon X850 XT and GeForce 6800 Ultra DDL. 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.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


ATI Radeon X850 XT
Radeon X850 XT
NVIDIA GeForce 6800 Ultra DDL
GeForce 6800 Ultra DDL

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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


3.3 12 votes

Rate Radeon X850 XT on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
5 2 votes

Rate GeForce 6800 Ultra DDL on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.