NVIDIA
GeForce GT 420 vs GeForce GTS 450
Full comparison of specs, performance and benchmarks
NVIDIA
GTS 450
Aggregate performance score
We've compared GT 420 and GTS 450 across specs and all relevant benchmarks.
↗GT 420 outperforms GTS 450 by ~1% on the catalog index; this is not a measured FPS gain.+1%
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 GT 420 (~2%)
The score difference is not a measured FPS improvement.
Reasons to consider GT 420
- Lower stated power consumption
- Lower recorded market price
- Recorded feature support: OpenCL 1.1, CUDA 2.1 · Not supported
Reasons to consider GTS 450
- More graphics memory
- Recorded feature support: OpenCL 1.1, CUDA 2.1 · Not supported
Catalog metrics radar
Axes with missing data are hidden; every value uses a fixed scale.
NVIDIAPerformance
Efficiency
Price / performance
Memory capacity
3131
10097
100100
4356
Graphics card ranking
Positions 167–172of 321
Which should you choose?
Two practical conclusions based on community votes and gaming value.
GeForce GT 420
154 likesHead to Head visitors currently choose this model more often.
Overview
Scores are calculated from specifications, performance, and efficiency.
GamesDirectX, OpenCL, and Vulkan performance
31
31
Professional applications3D modeling, video editing, and rendering
29
29
AI and machine learningMachine-learning and AI capabilities
26
26
Power efficiencyPower consumption across workloads
100Better
97
Head to Head scoreOverall catalog score
52Better
51
Specifications
The better numeric value is highlighted in green, taking the metric direction into account.
Device class
Max monitors
Max resolution
USB Type-C
Recommended PSU
Length
Power consumptionBetter
DirectX
OpenGL
TFLOPSBetter
Memory type
Power connector
Clock speedBetter
Base clockBetter
Boost clockBetter
VRAMBetter
Memory frequencyBetter
Memory bus
Memory bandwidthBetter
Interface
Power consumptionBetter
Process node
Release date
Architecture
Thickness
Compute API
Launch priceBetter
Shader units / coresBetter
Die sizeBetter
Memory cache
Transistor countBetter
Vulkan
HDMI
Upscaling
DisplayPort
Gaming FPS
Available results are shown separately; missing data is not treated as zero.
The Gaming FPS section compares GT 420 and GTS 450 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.
GT 420GTS 450
Verified externalEstimatedSources ↗
Counter-Strike 2
1080p High
154 FPS
156 FPS
1080p Ultra
108 FPS
108 FPS
1440p Ultra
58 FPS
59 FPS
4K Ultra
21 FPS
21 FPS
Counter-Strike 2GT 420154 FPSGTS 450156 FPSGT 420108 FPSGTS 450108 FPSGT 42058 FPSGTS 45059 FPSGT 42021 FPSGTS 45021 FPS
Cyberpunk 2077GT 420100 FPSGTS 450101 FPSGT 42086 FPSGTS 45085 FPSGT 42042 FPSGTS 45043 FPSGT 42014 FPSGTS 45014 FPS
Forza Horizon 5GT 420126 FPSGTS 450127 FPSGT 42081 FPSGTS 45081 FPSGT 42053 FPSGTS 45054 FPSGT 42031 FPSGTS 45031 FPS
Hogwarts LegacyGT 42081 FPSGTS 45082 FPSGT 42068 FPSGTS 45068 FPSGT 42038 FPSGTS 45039 FPSGT 42014 FPSGTS 45014 FPS
H2H workload indices
Comparable internal indices on a fixed 0–100 scale.
H2H Raster IndexH2H Index / 10031310%
H2H Compute IndexH2H Index / 10032346%
H2H Rendering IndexH2H Index / 100343811%
H2H Memory Workload IndexH2H Index / 100435626%
H2H Efficiency IndexH2H Index / 100100973%
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 / 100364215%
H2H ML Training IndexH2H Index / 100364113%
H2H Inference IndexH2H Index / 100343811%
H2H Local LLM IndexH2H Index / 100384517%
H2H Computer Vision IndexH2H Index / 10035388%
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
DirectX11.011.0
VulkanVulkan 1.2 (driver support)Vulkan 1.2 (driver support)
OpenGL4.64.6
UpscalingNot supportedNot supported
Compute APIOpenCL 1.1, CUDA 2.1OpenCL 1.1, CUDA 2.1
Architecture and release
ArchitectureFermiFermi
Process node40 nm40 nm
Release date20102010
Device classDesktopDesktop
GPU cores, die and clocks
Transistor count585 million1170 millionBetter
Die size116 mm²Better238 mm²
Shader units / cores96192Better
Base clock700 MHz783 MHzBetter
Boost clock700 MHz783 MHzBetter
Board size, power and compatibility
InterfacePCIe 2x16PCIe 2x16
LengthVaries by board210 mm
ThicknessIGPDual-slot
Recommended PSUVaries by board300 W
Power connectorNone6 pin
Display outputs and limits
HDMIBoard dependentmini-HDMI 1.3a
DisplayPortBoard dependentBoard dependent
USB Type-CNoNo
Max monitorsVaries by board3
Max resolutionVaries by board2560 × 1600
Memory and compute throughput
VRAM2 GB DDR3Better1 GB GDDR5
Memory typeDDR3GDDR5
Memory bus128 bit128 bit
TFLOPS0.1920.601Better
Other comparisons
Reviews 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 / 70
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 (5)
Verified community results
No verified community benchmarks yet.
Reviewed by
No individual editorial review is recorded for this comparison.
Comparison history
Show recorded changes (4)
- · Record updated: products
- · 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: GT 420 or GTS 450?+
GT 420 has the higher overall gaming score, while GT 420 offers the better price-to-performance ratio. The final choice depends on resolution and settings.
02Which is better for streaming?+
GT 420 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?+
GT 420 is generally the better option for Blender and GPU rendering. Rendering-engine support and available VRAM also matter.
04Which is better for video editing?+
GT 420 offers more overall performance, while GT 420 offers more memory headroom. Codecs, hardware encoders, and editor optimization can change the result.
05Which is better for neural networks and AI?+
GT 420 is the more practical option for local AI workloads. VRAM capacity, compute libraries, and framework compatibility are especially important.
06Which is better for 1080p?+
GT 420 is the most rational 1080p choice, where high frame rates and cost per frame matter most.
07Which is better for 1440p?+
GT 420 leads in combined 1440p performance. GT 420 can be preferable for heavy textures and games with high VRAM usage.
08Which is better for 4K?+
GT 420 is preferable for 4K, where total performance, memory bandwidth, and VRAM capacity have the greatest impact.
09Which is better for a quiet PC?+
GT 420 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?+
GT 420 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 GT 420 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.