NVIDIA
GeForce GTX 1660 vs Radeon RX 6600
Full comparison of specs, performance and benchmarks
AMD
RX 6600
Aggregate performance score
We've compared GTX 1660 and RX 6600 across specs and all relevant benchmarks.
↗RX 6600 outperforms GTX 1660 by ~11% on the catalog index; this is not a measured FPS gain.+11%
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 GTX 1660 (~6%)
The score difference is not a measured FPS improvement.
Reasons to consider GTX 1660
- Lower stated power consumption
- Higher catalog value index
- Recorded feature support: OpenCL 3.0, CUDA 7.5 · NVIDIA Image Scaling (NIS)
Reasons to consider RX 6600
- Higher catalog performance index
- More graphics memory
- Recorded feature support: OpenCL 2.1 · FSR
Catalog metrics radar
Axes with missing data are hidden; every value uses a fixed scale.
NVIDIA
AMDPerformance
Efficiency
Price / performance
Memory capacity
3842
100100
10074
6068
Graphics card ranking
Positions 65–70of 321
Which should you choose?
Two practical conclusions based on community votes and gaming value.
Radeon RX 6600
180 likesHead to Head visitors currently choose this model more often.
GeForce GTX 1660
Price $90.00Based on catalog performance per unit of current market price, not measured FPS.
Overview
Scores are calculated from specifications, performance, and efficiency.
GamesDirectX, OpenCL, and Vulkan performance
38
42Better
Professional applications3D modeling, video editing, and rendering
34
37Better
AI and machine learningMachine-learning and AI capabilities
31
34Better
Power efficiencyPower consumption across workloads
100
100
Head to Head scoreOverall catalog score
57Better
54
Specifications
The better numeric value is highlighted in green, taking the metric direction into account.
DisplayPort
HDMI
Device class
USB Type-C
DirectX
Vulkan
OpenGL
TFLOPSBetter
Power consumptionBetter
Memory type
Clock speedBetter
Base clockBetter
Max monitors
Max resolution
Boost clockBetter
VRAMBetter
Power connector
Release date
Architecture
Thickness
Memory frequencyBetter
Memory busBetter
Memory bandwidthBetter
Interface
Power consumptionBetter
Process nodeBetter
Recommended PSU
LengthBetter
Compute API
Launch priceBetter
Shader units / coresBetter
Die sizeBetter
Memory cache
Transistor countBetter
Upscaling
Gaming FPS
Available results are shown separately; missing data is not treated as zero.
The Gaming FPS section compares GTX 1660 and RX 6600 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.
GTX 1660RX 6600
Verified externalEstimatedSources ↗
Counter-Strike 2
1080p High
189 FPS
201 FPS
1080p Ultra
133 FPS
141 FPS
1440p Ultra
77 FPS
98 FPS
4K Ultra
24 FPS
29 FPS
Counter-Strike 2GTX 1660189 FPSRX 6600201 FPSGTX 1660133 FPSRX 6600141 FPSGTX 166077 FPSRX 660098 FPSGTX 166024 FPSRX 660029 FPS
Cyberpunk 2077GTX 1660122 FPSRX 6600130 FPSGTX 1660105 FPSRX 6600112 FPSGTX 166056 FPSRX 660071 FPSGTX 166016 FPSRX 660019 FPS
Forza Horizon 5GTX 1660154 FPSRX 6600164 FPSGTX 166099 FPSRX 6600106 FPSGTX 166069 FPSRX 660088 FPSGTX 166036 FPSRX 660042 FPS
Hogwarts LegacyGTX 166099 FPSRX 6600106 FPSGTX 166083 FPSRX 660089 FPSGTX 166050 FPSRX 660064 FPSGTX 166017 FPSRX 660020 FPS
H2H workload indices
Comparable internal indices on a fixed 0–100 scale.
H2H Raster IndexH2H Index / 100384210%
H2H Compute IndexH2H Index / 100455214%
H2H Rendering IndexH2H Index / 100444911%
H2H Memory Workload IndexH2H Index / 100606813%
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.
H2H AI workload indices
Estimated workload profiles based on available performance and memory data.
H2H Image Generation IndexH2H Index / 100485412%
H2H ML Training IndexH2H Index / 100475312%
H2H Inference IndexH2H Index / 100444911%
H2H Local LLM IndexH2H Index / 100505611%
H2H Computer Vision IndexH2H Index / 100455011%
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
DirectX12.112.2
Vulkan1.41.4
OpenGL4.64.6
UpscalingNVIDIA Image Scaling (NIS)FSR
Compute APIOpenCL 3.0, CUDA 7.5OpenCL 2.1
Architecture and release
ArchitectureTuringRDNA 2.0
Process node12 nm7 nmBetter
Release date20192021
Device classDesktopDesktop
GPU cores, die and clocks
Transistor count6600 million11060 millionBetter
Die size284 mm²237 mm²Better
Shader units / cores14081792Better
Base clock1530 MHz1626 MHzBetter
Boost clock1785 MHz2491 MHzBetter
Board size, power and compatibility
InterfacePCIe 3x16PCIe 4x8
Length229 mm190 mmBetter
ThicknessDual-slotDual-slot
Recommended PSU300 W300 W
Power connector8 pin8 pin
Display outputs and limits
HDMIHDMI 2.0HDMI 2.1
DisplayPortDisplayPort 1.4aDisplayPort 1.4a
USB Type-CNoNo
Max monitors34
Max resolution7680 × 43207680 × 4320
Memory and compute throughput
VRAM6 GB GDDR58 GB GDDR6Better
Memory typeGDDR5GDDR6
Memory bus192 bitBetter128 bit
TFLOPS5.0278.928Better
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 (5)
- · Record updated: products
- · Record updated: products
- · Record changed: product_prices
- · 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: GTX 1660 or RX 6600?+
GTX 1660 has the higher overall gaming score, while GTX 1660 offers the better price-to-performance ratio. The final choice depends on resolution and settings.
02Which is better for streaming?+
GTX 1660 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?+
GTX 1660 is generally the better option for Blender and GPU rendering. Rendering-engine support and available VRAM also matter.
04Which is better for video editing?+
GTX 1660 offers more overall performance, while GTX 1660 offers more memory headroom. Codecs, hardware encoders, and editor optimization can change the result.
05Which is better for neural networks and AI?+
GTX 1660 is the more practical option for local AI workloads. VRAM capacity, compute libraries, and framework compatibility are especially important.
06Which is better for 1080p?+
GTX 1660 is the most rational 1080p choice, where high frame rates and cost per frame matter most.
07Which is better for 1440p?+
GTX 1660 leads in combined 1440p performance. GTX 1660 can be preferable for heavy textures and games with high VRAM usage.
08Which is better for 4K?+
GTX 1660 is preferable for 4K, where total performance, memory bandwidth, and VRAM capacity have the greatest impact.
09Which is better for a quiet PC?+
GTX 1660 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?+
GTX 1660 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 GTX 1660 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.