
GeForce 8600M GT

GeForce GT 120M
GeForce 8600M GT vs GeForce GT 120M 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 8600M GT vs GeForce GT 120M 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 8600M GT vs GeForce GT 120M: 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 8600M GT
2008Why buy it
- ✅36.6% more average FPS across 50 tracked games in our benchmark data.
Trade-offs
- ❌Less VRAM, with 256 MB vs 1 GB for high-resolution textures and newer games.
- ❌2008 hardware with 256 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌400% higher power demand at 150W vs 30W.
GeForce GT 120M
2017Why buy it
- ✅300% more VRAM for high-resolution textures and newer games (1 GB vs 256 MB).
- ✅Draws 30W instead of 150W, a 120W reduction.
- ✅More future proof: Pascal (2016−2021) on 14nm with a newer platform for upcoming games.
Trade-offs
- ❌Lower average FPS than GeForce 8600M GT across 50 tracked games in our benchmark data.
- ❌2017 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Quick Answers
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GeForce 8600M GT vs GeForce GT 120M Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 8600M GT
The GeForce 8600M GT is manufactured by NVIDIA. It was released in July 15 2008. It features the G9x architecture. The core clock speed is 500 MHz. It has 224 shading units. The thermal design power (TDP) is 150W. Manufactured using 65 nm process technology. G3D Mark benchmark score: 164 points.

GeForce GT 120M
The GeForce GT 120M 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: 151 points. Launch price was $79.
Graphics Performance
In G3D Mark, the GeForce 8600M GT scores 164 versus the GeForce GT 120M's 151 — the GeForce 8600M GT leads by 8.6%. The GeForce 8600M GT is built on G9x while the GeForce GT 120M uses Pascal, both on 65 nm vs 14 nm. Shader units: 224 (GeForce 8600M GT) vs 384 (GeForce GT 120M).
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| G3D Mark Score | 164+9% | 151 |
| Architecture | G9x | Pascal |
| Process Node | 65 nm | 14 nm |
| Shading Units | 224 | 384+71% |
Advanced Features (DLSS/FSR)
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| 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)
The GeForce 8600M GT has 256 MB of VRAM, while the GeForce GT 120M carries 1 GB. GeForce GT 120M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the GeForce 8600M GT and 64-bit on the GeForce GT 120M.
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| VRAM Capacity | 0.25 GB | 1 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 64-bit |
Display & API Support
DirectX support: 11.1 (10_0) (GeForce 8600M GT) vs 11.1 (FL10_0) (GeForce GT 120M). OpenGL: 3.3 vs 3.3. Maximum simultaneous displays: 2 vs 2.
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| DirectX | 11.1 (10_0) | 11.1 (FL10_0) |
| OpenGL | 3.3 | 3.3 |
| Max Displays | 2 | 2 |
Media & Encoding
Decoder: PureVideo HD (VP2) vs VP3. Supported codecs: H.264,VC-1,MPEG-2 (GeForce 8600M GT) vs H.264,VC-1,MPEG-2 (GeForce GT 120M).
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| Encoder | — | VP3 |
| Decoder | PureVideo HD (VP2) | VP3 |
| Codecs | H.264,VC-1,MPEG-2 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce 8600M GT draws 150W versus the GeForce GT 120M's 30W — a 133.3% difference. The GeForce GT 120M is more power-efficient. Recommended PSU: 350W (GeForce 8600M GT) vs 350W (GeForce GT 120M). Power connectors: Legacy vs PCIe-powered. Typical load temperature: 85°C vs 80°C.
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| TDP | 150W | 30W-80% |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Slots | 0 | 0 |
| Temp (Load) | 85°C | 80°C-6% |
| Perf/Watt | 1.1 | 5.0+355% |
Value Analysis
The newer card here is GeForce GT 120M (2017 vs 2008).
| Feature | GeForce 8600M GT | GeForce GT 120M |
|---|---|---|
| MSRP | $0 | — |
| Codename | NB9E-GTX | GP108 |
| Release | July 15 2008 | May 17 2017 |
| Ranking | #825 | #641 |
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