RTX A400 vs GeForce GTX 285 X2

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Primary details

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

Place in the rankingnot rated440
Place by popularitynot in top-100not in top-100
Power efficiencyno data14.16
ArchitectureTesla 2.0 (2007−2013)Ampere (2020−2024)
GPU code nameGT200BGA107
Market segmentDesktopWorkstation
Release date17 June 2009 (15 years ago)16 April 2024 (less than a year 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 cores240768
Core clock speed648 MHz727 MHz
Boost clock speedno data1762 MHz
Number of transistors1,400 million8,700 million
Manufacturing process technology55 nm8 nm
Power consumption (TDP)315 Watt50 Watt
Texture fill rate51.8442.29
Floating-point processing power0.7085 TFLOPS2.706 TFLOPS
ROPs3216
TMUs8024
Tensor Coresno data24
Ray Tracing Coresno data6

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 2.0 x16PCIe 4.0 x8
Length275 mm163 mm
Width2-slot1-slot
Supplementary power connectors2x 8-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 typeGDDR3GDDR6
Maximum RAM amount2 GB4 GB
Memory bus width512 Bit64 Bit
Memory clock speed1152 MHz1500 MHz
Memory bandwidth147.5 GB/s96 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 HDMI4x mini-DisplayPort 1.4a
HDMI+-

API compatibility

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

DirectX11.1 (10_0)12 Ultimate (12_2)
Shader Model4.06.7
OpenGL3.34.6
OpenCL1.13.0
VulkanN/A1.3
CUDA1.38.6

Pros & cons summary


Recency 17 June 2009 16 April 2024
Maximum RAM amount 2 GB 4 GB
Chip lithography 55 nm 8 nm
Power consumption (TDP) 315 Watt 50 Watt

RTX A400 has an age advantage of 14 years, a 100% higher maximum VRAM amount, a 587.5% more advanced lithography process, and 530% lower power consumption.

We couldn't decide between GeForce GTX 285 X2 and RTX A400. We've got no test results to judge.

Be aware that GeForce GTX 285 X2 is a desktop card while RTX A400 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 GTX 285 X2
GeForce GTX 285 X2
NVIDIA RTX A400
RTX A400

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Community ratings

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