Radeon RX 7800 XT vs GeForce 8400 GS PCI

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Primary details

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

Place in the rankingnot rated30
Place by popularitynot in top-10040
Cost-effectiveness evaluationno data60.55
Power efficiencyno data16.54
ArchitectureTesla 2.0 (2007−2013)RDNA 3.0 (2022−2024)
GPU code nameGT218Navi 32
Market segmentDesktopDesktop
Release date17 April 2007 (17 years ago)25 August 2023 (1 year ago)
Launch price (MSRP)no data$499

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 cores163840
Core clock speed520 MHz1295 MHz
Boost clock speedno data2430 MHz
Number of transistors260 million28,100 million
Manufacturing process technology40 nm5 nm
Power consumption (TDP)40 Watt263 Watt
Texture fill rate4.160583.2
Floating-point processing power0.03936 TFLOPS37.32 TFLOPS
ROPs496
TMUs8240
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).

InterfacePCIPCIe 4.0 x16
Length170 mm267 mm
Width1-slot2-slot
Supplementary power connectorsNone2x 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 typeDDR3GDDR6
Maximum RAM amount512 MB16 GB
Memory bus width64 Bit256 Bit
Memory clock speed500 MHz2438 MHz
Memory bandwidth8 GB/s624.1 GB/s
Shared memoryno data-

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 DVI, 1x HDMI, 1x VGA1x HDMI 2.1a, 3x DisplayPort 2.1
HDMI++

API compatibility

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

DirectX11.1 (10_1)12 Ultimate (12_2)
Shader Model4.16.7
OpenGL3.34.6
OpenCL1.12.2
VulkanN/A1.3
CUDA1.2-

Pros & cons summary


Recency 17 April 2007 25 August 2023
Maximum RAM amount 512 MB 16 GB
Chip lithography 40 nm 5 nm
Power consumption (TDP) 40 Watt 263 Watt

8400 GS PCI has 557.5% lower power consumption.

RX 7800 XT, on the other hand, has an age advantage of 16 years, a 3100% higher maximum VRAM amount, and a 700% more advanced lithography process.

We couldn't decide between GeForce 8400 GS PCI and Radeon RX 7800 XT. We've got no test results to judge.


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 8400 GS PCI
GeForce 8400 GS PCI
AMD Radeon RX 7800 XT
Radeon RX 7800 XT

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.7 648 votes

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4.3 2901 vote

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Questions & comments

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