Radeon RX 6850M XT vs GeForce 8400 GS PCI Rev. 2

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Primary details

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

Place in the rankingnot rated77
Place by popularitynot in top-100not in top-100
Power efficiencyno data18.88
ArchitectureTesla 2.0 (2007−2013)RDNA 2.0 (2020−2024)
GPU code nameGT218Navi 22
Market segmentDesktopLaptop
Release date17 April 2007 (17 years ago)4 January 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 cores162560
Core clock speed520 MHz2321 MHz
Boost clock speedno data2581 MHz
Number of transistors260 million17,200 million
Manufacturing process technology40 nm7 nm
Power consumption (TDP)40 Watt165 Watt
Texture fill rate4.160413.0
Floating-point processing power0.03936 TFLOPS13.21 TFLOPS
ROPs464
TMUs8160
Ray Tracing Coresno data40

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).

Laptop sizeno datalarge
InterfacePCIPCIe 4.0 x16
Width1-slotno data
Supplementary power connectorsNoneNone

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 MB12 GB
Memory bus width64 Bit192 Bit
Memory clock speed500 MHz2000 MHz
Memory bandwidth8 GB/s384.0 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 VGANo outputs
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 Model4.16.5
OpenGL3.34.6
OpenCL1.12.1
VulkanN/A1.3
CUDA1.2-

Pros & cons summary


Recency 17 April 2007 4 January 2022
Maximum RAM amount 512 MB 12 GB
Chip lithography 40 nm 7 nm
Power consumption (TDP) 40 Watt 165 Watt

8400 GS PCI Rev. 2 has 312.5% lower power consumption.

RX 6850M XT, on the other hand, has an age advantage of 14 years, a 2300% higher maximum VRAM amount, and a 471.4% more advanced lithography process.

We couldn't decide between GeForce 8400 GS PCI Rev. 2 and Radeon RX 6850M XT. We've got no test results to judge.

Be aware that GeForce 8400 GS PCI Rev. 2 is a desktop card while Radeon RX 6850M XT is a notebook 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 8400 GS PCI Rev. 2
GeForce 8400 GS PCI Rev. 2
AMD Radeon RX 6850M XT
Radeon RX 6850M XT

Comparisons with similar GPUs

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Community ratings

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4.6 228 votes

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