AMD
Radeon RX 550 4GB vs Radeon RX 6400
Full comparison of specs, performance and benchmarks
AMD
RX 6400
Aggregate performance score
We've compared RX 550 4GB and RX 6400 across specs and all relevant benchmarks.
↗RX 6400 outperforms RX 550 4GB by 3% based on our aggregate benchmark results.+3%
Scores are normalized on the Head to Head scale. Higher is better.Radeon RX 550 4GB vs Radeon RX 6400: key takeaway
The comparison of RX 550 4GB and RX 6400 shows a 3% advantage for RX 6400 in gaming performance, while RX 550 4GB may still be stronger in value for money. Use the sections below to check whether that lead comes from real FPS, specifications, efficiency, price or platform features.
SUMMARY PROFILE
Verified-metrics radar
Axes with missing data are hidden; every value uses a fixed scale.
AMDPerformance
Efficiency
Price / performance
Memory capacity
3233
100100
100100
5660
COMPARISON RESULT
The devices received the same overall score
RX 550 4GB leads in combined game performance. RX 550 4GB offers the better price per frame, while the final choice depends on the required features, memory, and games.
Performance is nearly identical
RX 550 4GB costs less
CATALOG POSITION
Full ranking →Graphics card ranking
Positions 160–165of 317
COMPARISON VERDICT
Which should you choose?
Two practical conclusions based on community votes and gaming value.
Radeon RX 6400
82 likesHead to Head visitors currently choose this model more often.
Radeon RX 550 4GB
100/100 · Price $119The choice is based on the price-to-performance index and launch price.
OVERALL SCORE
Overview
Scores are calculated from specifications, performance, and efficiency.
The Summary score section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
GamesDirectX, OpenCL, and Vulkan performance
32
33Better
Professional applications3D modeling, video editing, and rendering
29
30Better
AI and machine learningMachine-learning and AI capabilities
27
28Better
Power efficiencyPower consumption across workloads
100
100
Head to Head scoreOverall catalog score
58
58
FULL COMPARISON
Specifications
The better numeric value is highlighted in green, taking the metric direction into account.
The Specifications section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
Device classDesktopDesktop
DirectX12.012.2
Vulkan1.21.4
OpenGL4.64.6
HDMIHDMI 2.0bHDMI 2.1
DisplayPortDisplayPort 1.4DisplayPort 1.4a
Transistor count2200 million5400 millionBetter
Die size103 mm²Better107 mm²
Shader units / cores640768Better
Memory cacheL1 16 KB, L2 0.5 MBL1 128 KB, L2 1 MB
Max monitorsVaries by board2
Max resolution7680 × 43207680 × 4320
USB Type-CNoNo
Recommended PSUVaries by board250 W
LengthVaries by boardVaries by board
ThicknessVaries by boardSingle-slot
Power consumption50 WBetter53 W
TFLOPS1.2113.565Better
Memory typeGDDR5GDDR6
Power connector—None
Release date20172022
Upscaling—FSR
Compute API—OpenCL 2.2
Launch price—$159
Clock speed1100 - 1183 MHz1923 - 2321 MHzBetter
Base clock1100 MHz1923 MHzBetter
Boost clock1183 MHz2321 MHzBetter
VRAM4 GB GDDR54 GB GDDR6
Memory frequency7 GHz16 GHzBetter
Memory bus128 bitBetter64 bit
Memory bandwidth112 GB/s128 GB/sBetter
InterfacePCIe 3x8PCIe 4x4
Power consumption50 WBetter53 W
Process node14 nm6 nmBetter
ArchitecturePolarisRDNA 2.0
GAME TEST BENCH
Gaming FPS
Available results are shown separately; missing data is not treated as zero.
The Gaming FPS section compares RX 550 4GB and RX 6400 across curated H2H Lab game presets. The useful signal is not only average FPS, but also how each device behaves at 1440p and 4K, how memory capacity and bus width affect heavy textures, and whether the game engine favors raster performance, ray tracing, or driver maturity.
RX 550 4GBRX 6400
Verified H2HCommunity VerifiedEstimatedPredicted
Black Myth: Wukong
1080p High
19 FPSEstimated 64%
20 FPSEstimated 64%
1080p Ultra
16 FPSEstimated 64%
17 FPSEstimated 64%
1440p Ultra
9 FPSEstimated 58%
9 FPSEstimated 58%
4K Ultra
5 FPSEstimated 55%
5 FPSEstimated 55%
Black Myth: WukongRX 550 4GB19 FPSEstimated 64%RX 640020 FPSEstimated 64%RX 550 4GB16 FPSEstimated 64%RX 640017 FPSEstimated 64%RX 550 4GB9 FPSEstimated 58%RX 64009 FPSEstimated 58%RX 550 4GB5 FPSEstimated 55%RX 64005 FPSEstimated 55%
Call of Duty: WarzoneRX 550 4GB19 FPSEstimated 64%RX 640020 FPSEstimated 64%RX 550 4GB16 FPSEstimated 64%RX 640017 FPSEstimated 64%RX 550 4GB9 FPSEstimated 58%RX 64009 FPSEstimated 58%RX 550 4GB5 FPSEstimated 55%RX 64005 FPSEstimated 55%
Counter-Strike 2RX 550 4GB162 FPSEstimated 72%RX 6400168 FPSEstimated 72%RX 550 4GB112 FPSEstimated 72%RX 6400118 FPSEstimated 72%RX 550 4GB62 FPSEstimated 66%RX 640063 FPSEstimated 66%RX 550 4GB22 FPSEstimated 62%RX 640023 FPSEstimated 62%
Cyberpunk 2077RX 550 4GB105 FPSEstimated 72%RX 6400109 FPSEstimated 72%RX 550 4GB89 FPSEstimated 72%RX 640093 FPSEstimated 72%RX 550 4GB45 FPSEstimated 66%RX 640046 FPSEstimated 66%RX 550 4GB15 FPSEstimated 62%RX 640015 FPSEstimated 62%
Forza Horizon 5RX 550 4GB132 FPSEstimated 78%RX 6400137 FPSEstimated 78%RX 550 4GB84 FPSEstimated 72%RX 640088 FPSEstimated 72%RX 550 4GB56 FPSEstimated 66%RX 640057 FPSEstimated 66%RX 550 4GB32 FPSEstimated 62%RX 640033 FPSEstimated 62%
God of War RagnarökRX 550 4GB19 FPSEstimated 64%RX 640020 FPSEstimated 64%RX 550 4GB16 FPSEstimated 64%RX 640017 FPSEstimated 64%RX 550 4GB9 FPSEstimated 58%RX 64009 FPSEstimated 58%RX 550 4GB5 FPSEstimated 55%RX 64005 FPSEstimated 55%
Hogwarts LegacyRX 550 4GB85 FPSEstimated 72%RX 640089 FPSEstimated 72%RX 550 4GB70 FPSEstimated 72%RX 640074 FPSEstimated 72%RX 550 4GB40 FPSEstimated 66%RX 640041 FPSEstimated 66%RX 550 4GB15 FPSEstimated 62%RX 640016 FPSEstimated 62%
Microsoft Flight Simulator 2024RX 550 4GB19 FPSEstimated 64%RX 640020 FPSEstimated 64%RX 550 4GB16 FPSEstimated 64%RX 640017 FPSEstimated 64%RX 550 4GB9 FPSEstimated 58%RX 64009 FPSEstimated 58%RX 550 4GB5 FPSEstimated 55%RX 64005 FPSEstimated 55%
Monster Hunter WildsRX 550 4GB19 FPSEstimated 64%RX 640020 FPSEstimated 64%RX 550 4GB16 FPSEstimated 64%RX 640017 FPSEstimated 64%RX 550 4GB9 FPSEstimated 58%RX 64009 FPSEstimated 58%RX 550 4GB5 FPSEstimated 55%RX 64005 FPSEstimated 55%
StarfieldRX 550 4GB19 FPSEstimated 64%RX 640020 FPSEstimated 64%RX 550 4GB16 FPSEstimated 64%RX 640017 FPSEstimated 64%RX 550 4GB9 FPSEstimated 58%RX 64009 FPSEstimated 58%RX 550 4GB5 FPSEstimated 55%RX 64005 FPSEstimated 55%
HEAD TO HEAD · CALCULATED INDEX
H2H workload indices
Comparable internal indices on a fixed 0–100 scale.
The Benchmarks section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
H2H Raster IndexH2H Index / 10032333%
H2H Compute IndexH2H Index / 100374417%
H2H Rendering IndexH2H Index / 10039415%
H2H Memory Workload IndexH2H Index / 10056607%
H2H Efficiency IndexH2H Index / 1001001000%
These are versioned H2H calculated indices derived from normalized catalog data. They are not results from a third-party benchmark.
HEAD TO HEAD · CALCULATED INDEX
H2H AI workload indices
Estimated workload profiles based on available performance and memory data.
The Detailed comparison section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
H2H Image Generation IndexH2H Index / 10043455%
H2H ML Training IndexH2H Index / 10041447%
H2H Inference IndexH2H Index / 10039415%
H2H Local LLM IndexH2H Index / 10045486%
H2H Computer Vision IndexH2H Index / 10039415%
These are versioned H2H calculated indices derived from normalized catalog data. They are not results from a third-party benchmark.
Graphics APIs, SDKs and upscaling
The Graphics APIs, SDKs and upscaling section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
DirectX12.012.2
Vulkan1.21.4
OpenGL4.64.6
Upscaling—FSR
Compute API—OpenCL 2.2
Architecture and release
The Architecture and release section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
ArchitecturePolarisRDNA 2.0
Process node14 nm6 nmBetter
Release date20172022
Device classDesktopDesktop
GPU cores, die and clocks
The Core layout and clocks section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
Transistor count2200 million5400 millionBetter
Die size103 mm²Better107 mm²
Shader units / cores640768Better
Base clock1100 MHz1923 MHzBetter
Boost clock1183 MHz2321 MHzBetter
Board size, power and compatibility
The Form factor and compatibility section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
InterfacePCIe 3x8PCIe 4x4
LengthVaries by boardVaries by board
ThicknessVaries by boardSingle-slot
Recommended PSUVaries by board250 W
Power connector—None
Display outputs and limits
The Display outputs section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
HDMIHDMI 2.0bHDMI 2.1
DisplayPortDisplayPort 1.4DisplayPort 1.4a
USB Type-CNoNo
Max monitorsVaries by board2
Max resolution7680 × 43207680 × 4320
Memory and compute throughput
The VRAM capacity and bandwidth section compares RX 550 4GB and RX 6400 with normalized H2H data, turning specifications, tests and value signals into practical buying context.
VRAM4 GB GDDR54 GB GDDR6
Memory typeGDDR5GDDR6
Memory bus128 bitBetter64 bit
TFLOPS1.2113.565Better
HEAD TO HEAD · DISCOVER
6Other comparisons
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AI EXPLAIN · HEAD TO HEAD
Explain this comparison
Beyond percentages: causes, relevant specifications, and practical impact behind every chart.
What AI will explain
Overall score, radar, FPS, synthetic tests, specifications, efficiency, and value.
REAL CONFIGURATIONS
Owner experiences
Real builds, results, and community feedback.
♢Moderator reviewed☆Helpful to the community🏅Expert badges
Frequently asked comparison questions
Short recommendations based on performance, memory, power consumption, and intended use.
01Which is better for gaming: RX 550 4GB or RX 6400?+
RX 550 4GB has the higher overall gaming score, while RX 550 4GB offers the better price-to-performance ratio. The final choice depends on resolution and settings.
02Which is better for streaming?+
RX 550 4GB is the stronger streaming choice thanks to performance, hardware encoding, and application support. Check AV1, H.264, and HEVC support before buying.
03Which is better for Blender?+
RX 550 4GB is generally the better option for Blender and GPU rendering. Rendering-engine support and available VRAM also matter.
04Which is better for video editing?+
RX 550 4GB offers more overall performance, while RX 550 4GB offers more memory headroom. Codecs, hardware encoders, and editor optimization can change the result.
05Which is better for neural networks and AI?+
RX 550 4GB is the more practical option for local AI workloads. VRAM capacity, compute libraries, and framework compatibility are especially important.
06Which is better for 1080p?+
RX 550 4GB is the most rational 1080p choice, where high frame rates and cost per frame matter most.
07Which is better for 1440p?+
RX 550 4GB leads in combined 1440p performance. RX 550 4GB can be preferable for heavy textures and games with high VRAM usage.
08Which is better for 4K?+
RX 550 4GB is preferable for 4K, where total performance, memory bandwidth, and VRAM capacity have the greatest impact.
09Which is better for a quiet PC?+
RX 550 4GB is easier to use in a quiet build because of its lower estimated power and thermal load. Actual noise depends on the specific cooler.
10Which is better without replacing the power supply?+
RX 550 4GB is the safer candidate because its stated power consumption is lower. Verify PSU wattage, age, and power connectors.
11Is it worth upgrading from the previous generation?+
Consider upgrading to RX 550 4GB if your current device no longer delivers the required FPS, memory capacity, or feature support. A gain below 15–20% is usually worth waiting for a price cut.