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GeForce GT 420M vs GeForce RTX 3080
The GeForce GT 420M is much slower than the GeForce RTX 3080 on average across 100+ games. We cannot compare value as at least one GPU is out of stock.
GeForce RTX 308037% Score
- Up to 16884% faster on average across 100+ games
- Is 10 years and 2 months newer
- Available for $699.99
FPS Comparison Across Popular Games
Predicted average FPS at 1080p, 1440p, and 4K, based on real game benchmarks.
Specs & Benchmark Comparison
Side-by-side specs, synthetic benchmarks, and key hardware differences.
FP32 Computehelp
GeForce RTX 3080 has 15405% more compute power.
Pixel Fillratehelp
GeForce RTX 3080 fills pixels 8110% faster.
Texture Fillratehelp
GeForce RTX 3080 maps textures 5714% faster.
Memory Bandwidthhelp
GeForce RTX 3080 moves data 2870% faster.
DDR3
Memory Typehelp
GDDR6X128-bit
Memory Bushelp
320-bitGeForce 400M
Generationhelp
GeForce 30Mobile
Segmenthelp
Desktop-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, GeForce GT 420M or GeForce RTX 3080?expand_more
Neither, they're within 1% of each other across 100+ games. Pick based on price, availability, or VRAM.
aspect_ratioWhich is better for 1440p and 4K gaming, GeForce GT 420M or GeForce RTX 3080?expand_more
The GeForce RTX 3080 is faster at both resolutions. At 4K, VRAM matters more, check the specs section to compare memory. Toggle the resolution selector above to see per-game FPS.
paidIs the GeForce RTX 3080 worth buying in 2026?expand_more
It scores 37/100 in our gaming rating, faster than most GPUs on the market. Good buy if the price is right.
differenceWhat is the difference between GeForce GT 420M and GeForce RTX 3080?expand_more
Performance: GeForce GT 420M scores 0/100, GeForce RTX 3080 scores 37/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the GeForce GT 420M or GeForce RTX 3080 bottleneck my PC?expand_more
Depends on the rest of your build, especially your CPU. Swap the paired CPU in the FPS section above to see if it limits performance, or use our bottleneck calculator for a full analysis.
upgradeIs it worth upgrading to the GeForce GT 420M or GeForce RTX 3080?expand_more
The GeForce RTX 3080 is the stronger pick at 37/100. Compare your current GPU against it to see the exact FPS gain across 100+ games.
memoryDoes VRAM matter when comparing the GeForce GT 420M and GeForce RTX 3080?expand_more
Yes, more VRAM helps at higher resolutions and in modded games. Check the specs section above to compare memory capacity and bandwidth between both GPUs.
Popular Comparisons
GT 420M vs RTX 5060GT 420M vs RTX 5070 TiGT 420M vs RTX 5080GT 420M vs RX 9070 XTGT 420M vs RTX 5090GT 420M vs RX 9060 XT 16 GBGT 420M vs RTX 3070GT 420M vs GTX 1660 TiGT 420M vs Arc B580GT 420M vs GTX 1660 SUPERGT 420M vs RX 7600GT 420M vs RX 7700 XTGT 420M vs RX 580GT 420M vs RX 6800 XTGT 420M vs RX 6800GT 420M vs Arc A580GT 420M vs Arc B570GT 420M vs RX 480GT 420M vs GTX 1050 TiGT 420M vs RX 7900 XTXGT 420M vs RTX 4090GT 420M vs R7 240GT 420M vs R7 250RTX 3080 vs RTX 5060RTX 3080 vs RTX 5070 TiRTX 3080 vs RTX 5080RTX 3080 vs RX 9070 XTRTX 3080 vs RTX 5090RTX 3080 vs RX 9060 XT 16 GBRTX 3080 vs RTX 3070RTX 3080 vs GTX 1660 TiRTX 3080 vs Arc B580RTX 3080 vs GTX 1660 SUPERRTX 3080 vs RX 7600RTX 3080 vs RX 7700 XTRTX 3080 vs RX 580RTX 3080 vs RX 6800 XTRTX 3080 vs RX 6800RTX 3080 vs Arc A580RTX 3080 vs Arc B570RTX 3080 vs RX 480RTX 3080 vs GTX 1050 TiRTX 3080 vs RX 7900 XTXRTX 3080 vs RTX 4090RTX 3080 vs R7 240RTX 3080 vs R7 250