Tom Clancy's Rainbow Six Siege
1080p@75Hz·08:15 played
Nobody·11h ago
Public2 Tips
368
FPSAverage
336
FPS1% Low
87%/67°C
65%/73°C
16 GB
92%usage
Arc A580 vs GeForce GT 645M
The Arc A580 is much faster than the GeForce GT 645M on average across 100+ games. We cannot compare value as at least one GPU is out of stock.
Arc A58022% Score
- Up to 2923% faster on average across 100+ games
- Is 11 years and 2 months newer
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.
GDDR6
Memory Typehelp
DDR3256-bit
Memory Bushelp
128-bitAlchemist (Arc 5)
Generationhelp
GeForce 600MDesktop
Segmenthelp
Mobile-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, Arc A580 or GeForce GT 645M?expand_more
The Arc A580. It's 2100% faster than the GeForce GT 645M on average across 100+ games, scoring 22/100 vs 1/100 in our gaming rating.
speedHow much faster is Arc A580 than GeForce GT 645M?expand_more
2100% faster on average. The gap varies by game and resolution, check the per-game FPS comparison above.
aspect_ratioWhich is better for 1440p and 4K gaming, Arc A580 or GeForce GT 645M?expand_more
The Arc A580 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 Arc A580 worth buying in 2026?expand_more
It scores 22/100 in our gaming rating, faster than most GPUs on the market. Good buy if the price is right.
differenceWhat is the difference between Arc A580 and GeForce GT 645M?expand_more
Performance: Arc A580 scores 22/100, GeForce GT 645M scores 1/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the Arc A580 or GeForce GT 645M 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 Arc A580 or GeForce GT 645M?expand_more
The Arc A580 is the stronger pick at 22/100. Compare your current GPU against it to see the exact FPS gain across 100+ games.
memoryDoes VRAM matter when comparing the Arc A580 and GeForce GT 645M?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
Arc A580 vs RTX 5070Arc A580 vs RTX 5060 TiArc A580 vs RTX 5060Arc A580 vs RTX 5070 TiArc A580 vs RTX 5080Arc A580 vs RX 9070 XTArc A580 vs RTX 5090Arc A580 vs RX 9060 XT 16 GBArc A580 vs Arc B580Arc A580 vs GTX 1660 SUPERArc A580 vs RX 9070Arc A580 vs RTX 4080Arc A580 vs RX 7700 XTArc A580 vs RX 580Arc A580 vs RX 560Arc A580 vs RX 7900 XTArc A580 vs RX 6800Arc A580 vs Arc A750Arc A580 vs Arc A380Arc A580 vs Arc B570Arc A580 vs GT 1030Arc A580 vs RX 7900 XTXArc A580 vs RTX 4090Arc A580 vs R7 240Arc A580 vs R7 250GT 645M vs RTX 5070GT 645M vs RTX 5060 TiGT 645M vs RTX 5060GT 645M vs RTX 5070 TiGT 645M vs RTX 5080GT 645M vs RX 9070 XTGT 645M vs RTX 5090GT 645M vs RX 9060 XT 16 GBGT 645M vs Arc B580GT 645M vs GTX 1660 SUPERGT 645M vs RX 9070GT 645M vs RTX 4080GT 645M vs RX 7700 XTGT 645M vs RX 580GT 645M vs RX 560GT 645M vs RX 7900 XTGT 645M vs RX 6800GT 645M vs Arc A750GT 645M vs Arc A380GT 645M vs Arc B570GT 645M vs GT 1030GT 645M vs RX 7900 XTXGT 645M vs RTX 4090GT 645M vs R7 240GT 645M vs R7 250