
GeForce GT 330

GeForce GT 420M
GeForce GT 330 vs GeForce GT 420M Performance Spectrum
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
GeForce GT 330 vs GeForce GT 420M FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce GT 330 vs GeForce GT 420M: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce GT 330
2017Why buy it
- ✅36.3% more average FPS across 50 tracked games in our benchmark data.
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 4.0 vs 0 G3D/$ ($99 MSRP vs Unknown MSRP).
- ✅More future proof: Pascal (2016−2021) on 14nm with a newer platform for upcoming games.
Trade-offs
- ❌2017 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
GeForce GT 420M
2012Why buy it
- ✅Competitive enough if your priority is price, power, or specific feature preference.
Trade-offs
- ❌Lower average FPS than GeForce GT 330 across 50 tracked games in our benchmark data.
- ❌2012 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 4.0 G3D/$ (Unknown MSRP vs $99 MSRP).
Quick Answers
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GeForce GT 330 vs GeForce GT 420M Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GT 330
The GeForce GT 330 is manufactured by NVIDIA. It was released in May 17 2017. It features the Pascal architecture. The core clock ranges from 1228 MHz to 1468 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 393 points. Launch price was $79.

GeForce GT 420M
The GeForce GT 420M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 392 points.
Graphics Performance
The GeForce GT 330 scores 393 and the GeForce GT 420M reaches 392 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The GeForce GT 330 is built on Pascal while the GeForce GT 420M uses Kepler, both on 14 nm vs 28 nm. Shader units: 384 (GeForce GT 330) vs 384 (GeForce GT 420M). Raw compute: 1.127 TFLOPS (GeForce GT 330) vs 0.48 TFLOPS (GeForce GT 420M). Boost clocks: 1468 MHz vs 645 MHz.
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| G3D Mark Score | 393 | 392 |
| Architecture | Pascal | Kepler |
| Process Node | 14 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 1.127 TFLOPS+135% | 0.48 TFLOPS |
| Boost Clock | 1468 MHz+128% | 645 MHz |
| ROPs | 16 | 16 |
| TMUs | 24 | 32+33% |
| L1 Cache | 144 KB+350% | 32 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
Both cards ship with 512 MB of GDDR5. Memory bus width is 64-bit on the GeForce GT 330 and 128-bit on the GeForce GT 420M. L2 Cache: 512 KB (GeForce GT 330) vs 256 KB (GeForce GT 420M) — the GeForce GT 330 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 512 KB+100% | 256 KB |
Display & API Support
DirectX support: 11.1 (10_1) (GeForce GT 330) vs 11.0 (GeForce GT 420M). OpenGL: 3.3 vs 4.0. Maximum simultaneous displays: 2 vs 1.
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| DirectX | 11.1 (10_1) | 11.0 |
| OpenGL | 3.3 | 4.0+21% |
| Max Displays | 2+100% | 1 |
Media & Encoding
Hardware encoder: PureVideo HD (GeForce GT 330) vs No (GeForce GT 420M). Decoder: PureVideo HD vs PureVideo HD VP4. Supported codecs: H.264,MPEG-2,VC-1 (GeForce GT 330) vs MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 420M).
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| Encoder | PureVideo HD | No |
| Decoder | PureVideo HD | PureVideo HD VP4 |
| Codecs | H.264,MPEG-2,VC-1 | MPEG-2,H.264,VC-1,MPEG-4 ASP |
Power & Dimensions
The GeForce GT 330 draws 30W versus the GeForce GT 420M's 32W — a 6.5% difference. The GeForce GT 330 is more power-efficient. Recommended PSU: 300W (GeForce GT 330) vs 350W (GeForce GT 420M). Power connectors: None vs PCIe-powered. Card length: 175mm vs 0mm, occupying 1 vs 0 slots. Typical load temperature: 80 vs 75°C.
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| TDP | 30W-6% | 32W |
| Recommended PSU | 300W-14% | 350W |
| Power Connector | None | PCIe-powered |
| Length | 175mm | 0mm |
| Height | 111mm | 0mm |
| Slots | 1 | 0-100% |
| Temp (Load) | 80 | 75°C-6% |
| Perf/Watt | 13.1+7% | 12.3 |
Value Analysis
The newer card here is GeForce GT 330 (2017 vs 2012).
| Feature | GeForce GT 330 | GeForce GT 420M |
|---|---|---|
| MSRP | $99 | — |
| Codename | GP108 | GK107 |
| Release | May 17 2017 | March 22 2012 |
| Ranking | #641 | #909 |
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