A800 PCIe 40 GB vs Radeon RX 6800 XT

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Primary details

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

Place in the ranking28not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation50.49no data
Power efficiency15.07no data
ArchitectureRDNA 2.0 (2020−2024)Ampere (2020−2024)
GPU code nameNavi 21GA100
Market segmentDesktopWorkstation
Release date28 October 2020 (4 years ago)8 November 2022 (2 years ago)
Launch price (MSRP)$649 no data

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 cores46086912
Core clock speed1825 MHz765 MHz
Boost clock speed2250 MHz1410 MHz
Number of transistors26,800 million54,200 million
Manufacturing process technology7 nm7 nm
Power consumption (TDP)300 Watt250 Watt
Texture fill rate648.0609.1
Floating-point processing power20.74 TFLOPS19.49 TFLOPS
ROPs128160
TMUs288432
Tensor Coresno data432
Ray Tracing Cores72no 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 4.0 x16PCIe 4.0 x16
Length267 mm267 mm
Width2-slot2-slot
Supplementary power connectors2x 8-pin8-pin EPS

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 typeGDDR6HBM2e
Maximum RAM amount16 GB40 GB
Memory bus width256 Bit5120 Bit
Memory clock speed2000 MHz1215 MHz
Memory bandwidth512.0 GB/s1,555 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 Connectors1x HDMI, 2x DisplayPort, 1x USB Type-CNo outputs
HDMI+-

API compatibility

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

DirectX12 Ultimate (12_2)N/A
Shader Model6.5N/A
OpenGL4.6N/A
OpenCL2.13.0
Vulkan1.2N/A
CUDA-8.0

Pros & cons summary


Recency 28 October 2020 8 November 2022
Maximum RAM amount 16 GB 40 GB
Power consumption (TDP) 300 Watt 250 Watt

A800 PCIe 40 GB has an age advantage of 2 years, a 150% higher maximum VRAM amount, and 20% lower power consumption.

We couldn't decide between Radeon RX 6800 XT and A800 PCIe 40 GB. We've got no test results to judge.

Be aware that Radeon RX 6800 XT is a desktop card while A800 PCIe 40 GB 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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AMD Radeon RX 6800 XT
Radeon RX 6800 XT
NVIDIA A800 PCIe 40 GB
A800 PCIe 40 GB

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Community ratings

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