RTX A400 vs GeForce 7900 GX2

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Primary details

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

Place in the rankingnot rated406
Place by popularitynot in top-100not in top-100
Power efficiencyno data16.62
ArchitectureCurie (2003−2013)Ampere (2020−2024)
GPU code nameG71GA107
Market segmentDesktopWorkstation
Release date30 April 2006 (18 years ago)16 April 2024 (less than a year 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 data768
Core clock speed500 MHz727 MHz
Boost clock speedno data1762 MHz
Number of transistors278 million8,700 million
Manufacturing process technology90 nm8 nm
Power consumption (TDP)no data50 Watt
Texture fill rate12.0042.29
Floating-point processing powerno data2.706 TFLOPS
ROPs1616
TMUs2424
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 1.0 x16PCIe 4.0 x8
Length312 mm163 mm
Width2-slot1-slot
Supplementary power connectors2x 6-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 amount512 MB4 GB
Memory bus width256 Bit64 Bit
Memory clock speed600 MHz1500 MHz
Memory bandwidth38.4 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 S-Video4x mini-DisplayPort 1.4a

API compatibility

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

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.7
OpenGL2.14.6
OpenCLN/A3.0
VulkanN/A1.3
CUDA-8.6

Pros & cons summary


Recency 30 April 2006 16 April 2024
Maximum RAM amount 512 MB 4 GB
Chip lithography 90 nm 8 nm

RTX A400 has an age advantage of 17 years, a 700% higher maximum VRAM amount, and a 1025% more advanced lithography process.

We couldn't decide between GeForce 7900 GX2 and RTX A400. We've got no test results to judge.

Be aware that GeForce 7900 GX2 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 7900 GX2
GeForce 7900 GX2
NVIDIA RTX A400
RTX A400

Comparisons with similar GPUs

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Community ratings

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2.9 15 votes

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Questions & comments

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