Radeon RX 6450M vs GeForce RTX 4090

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Primary details

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

Place in the ranking1not rated
Place by popularity6not in top-100
Cost-effectiveness evaluation18.80no data
Power efficiency15.39no data
ArchitectureAda Lovelace (2022−2024)RDNA 2.0 (2020−2024)
GPU code nameAD102Navi 24
Market segmentDesktopLaptop
Release date20 September 2022 (2 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$1,599 no data

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 cores16384768
Core clock speed2235 MHz2000 MHz
Boost clock speed2520 MHz2460 MHz
Number of transistors76,300 million5,400 million
Manufacturing process technology5 nm6 nm
Power consumption (TDP)450 Watt50 Watt
Texture fill rate1,290118.1
Floating-point processing power82.58 TFLOPS3.779 TFLOPS
ROPs17632
TMUs51248
Tensor Cores512no data
Ray Tracing Cores12812

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 x4
Length304 mmno data
Width3-slotno data
Supplementary power connectors1x 16-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 typeGDDR6XGDDR6
Maximum RAM amount24 GB4 GB
Memory bus width384 Bit64 Bit
Memory clock speed1313 MHz2000 MHz
Memory bandwidth1.01 TB/s128.0 GB/s
Shared memory--

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 1.4aPortable Device Dependent
HDMI+-

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.86.7
OpenGL4.64.6
OpenCL3.02.2
Vulkan1.31.3
CUDA8.9-

Pros & cons summary


Recency 20 September 2022 4 January 2023
Maximum RAM amount 24 GB 4 GB
Chip lithography 5 nm 6 nm
Power consumption (TDP) 450 Watt 50 Watt

RTX 4090 has a 500% higher maximum VRAM amount, and a 20% more advanced lithography process.

RX 6450M, on the other hand, has an age advantage of 3 months, and 800% lower power consumption.

We couldn't decide between GeForce RTX 4090 and Radeon RX 6450M. We've got no test results to judge.

Be aware that GeForce RTX 4090 is a desktop card while Radeon RX 6450M 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 RTX 4090
GeForce RTX 4090
AMD Radeon RX 6450M
Radeon RX 6450M

Comparisons with similar GPUs

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Community ratings

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