Radeon Pro W6800 vs SIS Mirage M661FX

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Primary details

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

Place in the rankingnot rated52
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data23.18
Power efficiencyno data14.20
Architectureno dataRDNA 2.0 (2020−2024)
GPU code nameno dataNavi 21
Market segmentLaptopWorkstation
Release date1 July 2003 (21 year ago)8 June 2021 (3 years ago)
Launch price (MSRP)no data$2,249

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 coresno data3840
Core clock speedno data2075 MHz
Boost clock speed133 MHz2320 MHz
Number of transistorsno data26,800 million
Manufacturing process technologyno data7 nm
Power consumption (TDP)no data250 Watt
Texture fill rateno data556.8
Floating-point processing powerno data17.82 TFLOPS
ROPsno data96
TMUsno data240
Ray Tracing Coresno data60

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).

Interfaceno dataPCIe 4.0 x16
Lengthno data267 mm
Widthno data2-slot
Supplementary power connectorsno data1x 6-pin + 1x 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 typeno dataGDDR6
Maximum RAM amountno data32 GB
Memory bus widthno data256 Bit
Memory clock speedno data2000 MHz
Memory bandwidthno data512.0 GB/s
Shared memory+-

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 Connectorsno data6x mini-DisplayPort

API compatibility

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

DirectXno data12 Ultimate (12_2)
Shader Modelno data6.5
OpenGLno data4.6
OpenCLno data2.1
Vulkan-1.2

Pros & cons summary


Recency 1 July 2003 8 June 2021

Pro W6800 has an age advantage of 17 years.

We couldn't decide between SIS Mirage M661FX and Radeon Pro W6800. We've got no test results to judge.

Be aware that SIS Mirage M661FX is a notebook card while Radeon Pro W6800 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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SIS Mirage M661FX
Mirage M661FX
AMD Radeon Pro W6800
Radeon Pro W6800

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Community ratings

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Rate SIS Mirage M661FX on a scale of 1 to 5:

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3.9 80 votes

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