NVIDIA
GeForce RTX 3090 vs GeForce 8400M G
Full comparison of specs, performance and benchmarks
NVIDIA
GeForce 8400M G
Aggregate performance score
We've compared RTX 3090 and GeForce 8400M G across specs and all relevant benchmarks.
↗RTX 3090 outperforms GeForce 8400M G by ~127% on the catalog index; this is not a measured FPS gain.+127%
Scores are normalized on the Head to Head scale. Higher is better. How is this calculated?H2HBench Data Quality
Low confidenceSpecifications: Field verification not recordedVerified gaming results: 0Estimated / unverified results: 32Price record updated: Sep 6, 2026
Limited verified data
H2HBench Verdict
Higher catalog score: GeForce RTX 3090 (~40%)
The score difference is not a measured FPS improvement.
Reasons to consider RTX 3090
- Higher catalog performance index
- More graphics memory
- Recorded feature support: OpenCL 3.0, CUDA 8.6 · DLSS 2
Reasons to consider GeForce 8400M G
- Lower stated power consumption
- Higher catalog value index
- Recorded feature support: OpenCL 1.1, CUDA 1.1 · Not supported
Catalog metrics radar
Axes with missing data are hidden; every value uses a fixed scale.
NVIDIAPerformance
Efficiency
Price / performance
Memory capacity
6830
65100
4454
10043
Graphics card ranking
Positions 46–51of 321
Which should you choose?
Two practical conclusions based on community votes and gaming value.
GeForce RTX 3090
180 likesHead to Head visitors currently choose this model more often.
Overview
Scores are calculated from specifications, performance, and efficiency.
GamesDirectX, OpenCL, and Vulkan performance
68Better
30
Professional applications3D modeling, video editing, and rendering
55Better
28
AI and machine learningMachine-learning and AI capabilities
53Better
26
Power efficiencyPower consumption across workloads
65
100Better
Head to Head scoreOverall catalog score
59Better
42
Specifications
The better numeric value is highlighted in green, taking the metric direction into account.
DisplayPort
HDMI
Device class
Upscaling
DirectX
Vulkan
OpenGL
TFLOPSBetter
Power consumptionBetter
Memory type
Power connector
Release date
Architecture
Thickness
Compute API
Launch price—
Shader units / coresBetter
Length
Clock speedBetter
Base clockBetter
Boost clockBetter
VRAMBetter
Memory frequencyBetter
Memory busBetter
Memory bandwidthBetter
Interface
Power consumptionBetter
Process nodeBetter
Recommended PSU
Die sizeBetter
Memory cacheBetter
Transistor countBetter
Max monitors
Max resolution
USB Type-C
Gaming FPS
Available results are shown separately; missing data is not treated as zero.
The Gaming FPS section compares RTX 3090 and GeForce 8400M G 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.
RTX 3090GeForce 8400M G
Verified externalEstimatedSources ↗
Counter-Strike 2
1080p High
281 FPS
150 FPS
1080p Ultra
197 FPS
105 FPS
1440p Ultra
153 FPS
56 FPS
4K Ultra
76 FPS
20 FPS
Counter-Strike 2RTX 3090281 FPSGeForce 8400M G150 FPSRTX 3090197 FPSGeForce 8400M G105 FPSRTX 3090153 FPSGeForce 8400M G56 FPSRTX 309076 FPSGeForce 8400M G20 FPS
Cyberpunk 2077RTX 3090181 FPSGeForce 8400M G97 FPSRTX 3090156 FPSGeForce 8400M G83 FPSRTX 3090111 FPSGeForce 8400M G41 FPSRTX 309051 FPSGeForce 8400M G14 FPS
Forza Horizon 5RTX 3090229 FPSGeForce 8400M G122 FPSRTX 3090148 FPSGeForce 8400M G79 FPSRTX 3090138 FPSGeForce 8400M G51 FPSRTX 3090112 FPSGeForce 8400M G30 FPS
Hogwarts LegacyRTX 3090148 FPSGeForce 8400M G79 FPSRTX 3090124 FPSGeForce 8400M G66 FPSRTX 3090100 FPSGeForce 8400M G37 FPSRTX 309052 FPSGeForce 8400M G14 FPS
H2H workload indices
Comparable internal indices on a fixed 0–100 scale.
H2H Raster IndexH2H Index / 100683078%
H2H Compute IndexH2H Index / 100712984%
H2H Rendering IndexH2H Index / 100773477%
H2H Memory Workload IndexH2H Index / 1001004380%
H2H Efficiency IndexH2H Index / 1006510042%
These are versioned H2H calculated indices derived from normalized catalog data. They are not results from a third-party benchmark.
H2H AI workload indices
Estimated workload profiles based on available performance and memory data.
H2H Image Generation IndexH2H Index / 100823678%
H2H ML Training IndexH2H Index / 100813579%
H2H Inference IndexH2H Index / 100773477%
H2H Local LLM IndexH2H Index / 100863780%
H2H Computer Vision IndexH2H Index / 100783479%
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
DirectX12.210.0
Vulkan1.4Not supported
OpenGL4.63.3
UpscalingDLSS 2Not supported
Compute APIOpenCL 3.0, CUDA 8.6OpenCL 1.1, CUDA 1.1
Architecture and release
ArchitectureAmpereTesla
Process node8 nmBetter80 nm
Release date20202007
Device classDesktopMobile
GPU cores, die and clocks
Transistor count28300 millionBetter210 million
Die size628 mm²127 mm²Better
Shader units / cores10496Better8
Base clock1395 MHzBetter400 MHz
Boost clock1695 MHzBetter400 MHz
Board size, power and compatibility
InterfacePCIe 4x16PCIe 1.0 x16
Length336 mmOEM dependent
ThicknessTriple-slotIGP
Recommended PSU750 WOEM dependent
Power connector16 pinNone
Display outputs and limits
HDMIHDMI 2.1OEM dependent
DisplayPortDisplayPort 1.4aOEM dependent
USB Type-CNoOEM dependent
Max monitors4OEM dependent
Max resolution7680 × 4320Depends on host system
Memory and compute throughput
VRAM24 GB GDDR6XBetter0.25 GB GDDR3
Memory typeGDDR6XGDDR3 / DDR2
Memory bus384 bitBetter64 bit
TFLOPS35.58Better0.013
Other comparisons
RX 7650 GREAMDReviews and questions
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.
Evidence details
Data coverage
- Verified gaming results
- 0
- Verified synthetic results
- 0
- Games with verified results
- 0
- Verified community results
- 0
- Estimated / unverified results
- 32
- Specifications
- 0 / 69
Calculated scores · How is this calculated?
Scores use the catalog model and may include estimated inputs. Open each score to see its origin and the methodology.
clamp(round(performance × 0.7 + (efficiency ?? 50) × 0.2 + (value is missing ? 0 : (value − 50) × 0.2)), 0, 100)Price evidence · View sources (4)
Verified community results
No verified community benchmarks yet.
Reviewed by
No individual editorial review is recorded for this comparison.
Comparison history
Show recorded changes (3)
- · Record updated: products
- · Record updated: products
- · Record updated: products
Why you can trust this comparison
Origin and confidence are evaluated from the evidence attached to each value. Unverified results are identified, and specification, benchmark and price dates remain separate.
Owner experiences
Real builds, results, and community feedback.
Moderator reviewedHelpful to the communityExpert badges
Frequently asked comparison questions
Short recommendations based on performance, memory, power consumption, and intended use.
01Which is better for gaming: RTX 3090 or GeForce 8400M G?+
RTX 3090 has the higher overall gaming score, while GeForce 8400M G offers the better price-to-performance ratio. The final choice depends on resolution and settings.
02Which is better for streaming?+
RTX 3090 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?+
RTX 3090 is generally the better option for Blender and GPU rendering. Rendering-engine support and available VRAM also matter.
04Which is better for video editing?+
RTX 3090 offers more overall performance, while RTX 3090 offers more memory headroom. Codecs, hardware encoders, and editor optimization can change the result.
05Which is better for neural networks and AI?+
RTX 3090 is the more practical option for local AI workloads. VRAM capacity, compute libraries, and framework compatibility are especially important.
06Which is better for 1080p?+
GeForce 8400M G is the most rational 1080p choice, where high frame rates and cost per frame matter most.
07Which is better for 1440p?+
RTX 3090 leads in combined 1440p performance. RTX 3090 can be preferable for heavy textures and games with high VRAM usage.
08Which is better for 4K?+
RTX 3090 is preferable for 4K, where total performance, memory bandwidth, and VRAM capacity have the greatest impact.
09Which is better for a quiet PC?+
GeForce 8400M G 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?+
GeForce 8400M G 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 RTX 3090 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.