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THE ACTUAL PRODUCT
MSI GeForce RTX 4090 SUPRIM X 24G graphics card with exact-model manufacturer packaging
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MSI GeForce RTX 4090 SUPRIM X 24G

24 GB GDDR6X · exact MSI board · global specification

MSI's GeForce RTX 4090 SUPRIM X 24G pairs an NVIDIA RTX 4090 GPU with 24 GB of GDDR6X memory in a 336 mm-long board.

Reviewed 8 Sept 2026Manufacturer specifications, not a hands-on test.
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WHAT IT BRINGS

The useful part.

Provides 3 DisplayPort and 1 HDMI outputs, with support for up to four displays.

Manufacturer source

The exact card carries 24 GB of GDDR6X memory on a 384-bit bus.

Manufacturer source
BEFORE YOU CHOOSE

The checks that matter.

Allow room for its 336 × 142 × 78 mm body and the power cable. MSI recommends a 1000 W system PSU; check all system components.

Manufacturer source

The power specification contains multiple figures: 450 W in Silent mode; 480 W in Gaming mode. No single board-power number is used for ranking.

Manufacturer source
NOTHING HIDDEN IN THE SMALL PRINT

Every specification.
With its source.

Our publishing standard
GPU and board model
NVIDIA GeForce RTX 4090 · MSI GeForce RTX 4090 SUPRIM X 24G
Conditions & context

Manufacturer specification

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VRAM capacity and type
24 GB GDDR6X; 384-bit memory bus; 21 Gb/s memory data rate
Conditions & context

Manufacturer specification

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Length, height and thickness
336 × 142 × 78 mm (length × height × thickness)
Conditions & context

Manufacturer specification · Card envelope only; allow additional power-cable bend, cooling and mounting clearance.

Source
Board power
450 W in Silent mode; 480 W in Gaming mode; 1000 W recommended system PSU; 850 W minimum listed
Conditions & context

Manufacturer specification · Manufacturer design figures and PSU recommendations; not measured gaming or whole-system consumption.

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Power connectors
1 × 16-pin
Conditions & context

Manufacturer specification · Use the PSU manufacturer’s matching cable and follow the card installation instructions; connector count alone does not establish PSU suitability.

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Display outputs and versions
3 × DisplayPort 1.4a; 1 × HDMI 2.1a
Conditions & context

Manufacturer specification · Maximum display modes require a compatible display, cable, colour format and source configuration; they are not measured game frame rates.

Source
Graphics memory capacity
24 GB
Conditions & context

Manufacturer specification · Capacity of this exact board, not a gaming-performance score.

Source
Card length
336 mm
Conditions & context

Manufacturer specification · Card envelope excluding required cable clearance.

Source
Recommended system PSU
1000 W
Conditions & context

Manufacturer specification · Manufacturer recommendation; 850 W minimum listed. Other components, PSU quality and connector requirements still apply.

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PCIe interface
PCIe 4.0; electrical link width not separately stated in this datasheet
Conditions & context

Manufacturer specification

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Listed boost clock
2625 MHz
Conditions & context

Manufacturer specification · Manufacturer boost setting. Actual clock varies with workload, power and cooling; MSI Center Extreme Performance is a separate setting.

Source
CUDA cores
16384
Conditions & context

Manufacturer specification · Execution-unit count, not a cross-generation performance ratio.

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Memory bus width
384 bit
Conditions & context

Manufacturer specification

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Memory data rate
21 Gb/s
Conditions & context

Manufacturer specification · Per-pin memory data rate, not application transfer speed.

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Card weight
2413 g
Conditions & context

Manufacturer specification · Manufacturer-listed card-only weight, excluding retail packaging.

Source
Maximum simultaneous displays
4
Conditions & context

Manufacturer specification · Manufacturer maximum; resolution, bandwidth and output configuration still apply.

Source
PUT IT IN PERSPECTIVE

A choice needs a contender.

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