A800 PCIe 40 GB vs GeForce RTX 4090 Ti

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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 popularity66not in top-100
ArchitectureAda Lovelace (2022−2024)Ampere (2020−2024)
GPU code nameAD102GA100
Market segmentDesktopWorkstation
Release date2023 (1 year ago)8 November 2022 (2 years ago)

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 cores181766912
Core clock speed2325 MHz765 MHz
Boost clock speed2565 MHz1410 MHz
Number of transistors76,300 million54,200 million
Manufacturing process technology5 nm7 nm
Power consumption (TDP)600 Watt250 Watt
Texture fill rate1,457609.1
Floating-point processing power93.24 TFLOPS19.49 TFLOPS
ROPs192160
TMUs568432
Tensor Cores568432
Ray Tracing Cores142no 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
Length336 mm267 mm
Width3-slot2-slot
Supplementary power connectors2x 16-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 typeGDDR6XHBM2e
Maximum RAM amount24 GB40 GB
Memory bus width384 Bit5120 Bit
Memory clock speed1500 MHz1215 MHz
Memory bandwidth1.15 TB/s1,555 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 Connectors1x HDMI 2.1, 3x DisplayPort 1.4aNo outputs
HDMI+-

API compatibility

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

DirectX12 Ultimate (12_2)N/A
Shader Model6.7N/A
OpenGL4.6N/A
OpenCL3.03.0
Vulkan1.3N/A
CUDA8.98.0

Pros & cons summary


Maximum RAM amount 24 GB 40 GB
Chip lithography 5 nm 7 nm
Power consumption (TDP) 600 Watt 250 Watt

RTX 4090 Ti has a 40% more advanced lithography process.

A800 PCIe 40 GB, on the other hand, has a 66.7% higher maximum VRAM amount, and 140% lower power consumption.

We couldn't decide between GeForce RTX 4090 Ti and A800 PCIe 40 GB. We've got no test results to judge.

Be aware that GeForce RTX 4090 Ti 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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NVIDIA GeForce RTX 4090 Ti
GeForce RTX 4090 Ti
NVIDIA A800 PCIe 40 GB
A800 PCIe 40 GB

Comparisons with similar GPUs

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Community ratings

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