Radeon Instinct MI250X vs GeForce 6800 Ultra DDL

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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)CDNA 2.0 (2021)
GPU code nameNV40Aldebaran
Market segmentDesktopWorkstation
Release date14 April 2004 (20 years ago)8 November 2021 (2 years ago)
Launch price (MSRP)$599 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 coresno data14080
Core clock speed400 MHz1000 MHz
Boost clock speedno data1700 MHz
Number of transistors222 million58,200 million
Manufacturing process technology130 nm6 nm
Power consumption (TDP)100 Watt500 Watt
Texture fill rate6.4001,496
Floating-point processing powerno data47.87 TFLOPS
ROPs16no data
TMUs16880

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).

InterfaceAGP Pro 8xPCIe 4.0 x16
Length305 mm267 mm
Width2-slot2-slot
Supplementary power connectorsNone2x 8-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 typeGDDR3HBM2e
Maximum RAM amount256 MB128 GB
Memory bus width256 Bit8192 Bit
Memory clock speed550 MHz1600 MHz
Memory bandwidth35.2 GB/s3,277 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 DVINo outputs

API compatibility

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

DirectX9.0c (9_3)N/A
Shader Model3.0N/A
OpenGL2.1N/A
OpenCLN/A3.0
VulkanN/AN/A

Pros & cons summary


Recency 14 April 2004 8 November 2021
Maximum RAM amount 256 MB 128 GB
Chip lithography 130 nm 6 nm
Power consumption (TDP) 100 Watt 500 Watt

6800 Ultra DDL has 400% lower power consumption.

Instinct MI250X, on the other hand, has an age advantage of 17 years, a 51100% higher maximum VRAM amount, and a 2066.7% more advanced lithography process.

We couldn't decide between GeForce 6800 Ultra DDL and Radeon Instinct MI250X. We've got no test results to judge.

Be aware that GeForce 6800 Ultra DDL is a desktop card while Radeon Instinct MI250X 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 DDL
GeForce 6800 Ultra DDL
AMD Radeon Instinct MI250X
Radeon Instinct MI250X

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

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5 2 votes

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3.5 123 votes

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Questions & comments

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