
GeForce GT 425M

Radeon R5 M420
GeForce GT 425M vs Radeon R5 M420 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 425M vs Radeon R5 M420 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 425M vs Radeon R5 M420: 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 425M
2013Why buy it
- ✅100% more VRAM for high-resolution textures and newer games (1 GB vs 512 MB).
- ✅Draws 45W instead of 75W, a 30W reduction.
Trade-offs
- ❌Lower average FPS than Radeon R5 M420 across 50 tracked games in our benchmark data.
- ❌2013 hardware with 1 GB 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 1.7 G3D/$ (Unknown MSRP vs $300 MSRP).
Radeon R5 M420
2016Why buy it
- ✅26.4% more average FPS across 50 tracked games in our benchmark data.
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 1.7 vs 0 G3D/$ ($300 MSRP vs Unknown MSRP).
Trade-offs
- ❌Less VRAM, with 512 MB vs 1 GB for high-resolution textures and newer games.
- ❌2016 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌66.7% higher power demand at 75W vs 45W.
Quick Answers
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GeForce GT 425M vs Radeon R5 M420 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce GT 425M
The GeForce GT 425M is manufactured by NVIDIA. It was released in April 1 2013. It features the Kepler architecture. The core clock speed is 549 MHz. It has 384 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 499 points.

Radeon R5 M420
The Radeon R5 M420 is manufactured by AMD. It was released in May 15 2016. It features the GCN 2.0 architecture. The core clock ranges from 900 MHz to 1000 MHz. It has 768 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 504 points.
Graphics Performance
The GeForce GT 425M scores 499 and the Radeon R5 M420 reaches 504 in the G3D Mark benchmark — just a 1% difference, making them near-identical in rasterization performance. The GeForce GT 425M is built on Kepler while the Radeon R5 M420 uses GCN 2.0, both on a 28 nm process. Shader units: 384 (GeForce GT 425M) vs 768 (Radeon R5 M420). Raw compute: 0.4216 TFLOPS (GeForce GT 425M) vs 1.536 TFLOPS (Radeon R5 M420).
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| G3D Mark Score | 499 | 504+1% |
| Architecture | Kepler | GCN 2.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 768+100% |
| Compute (TFLOPS) | 0.4216 TFLOPS | 1.536 TFLOPS+264% |
| ROPs | 16 | 16 |
| TMUs | 32 | 48+50% |
| L1 Cache | 32 KB | 192 KB+500% |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
The GeForce GT 425M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon R5 M420 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce GT 425M has 1 GB of VRAM, while the Radeon R5 M420 carries 512 MB. GeForce GT 425M gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce GT 425M and 128-bit on the Radeon R5 M420.
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 11.0 (GeForce GT 425M) vs 12 (11_1) (Radeon R5 M420). Vulkan: None vs N/A. OpenGL: 4.0 vs 4.6. Maximum simultaneous displays: 1 vs 2.
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| DirectX | 11.0 | 12 (11_1)+9% |
| Vulkan | None | N/A |
| OpenGL | 4.0 | 4.6+15% |
| Max Displays | 1 | 2+100% |
Media & Encoding
Hardware encoder: No (GeForce GT 425M) vs VCE 1.0 (Radeon R5 M420). Decoder: PureVideo HD VP4 vs UVD 4.0. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 425M) vs H.264,MPEG-4,VC-1,MPEG-2 (Radeon R5 M420).
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| Encoder | No | VCE 1.0 |
| Decoder | PureVideo HD VP4 | UVD 4.0 |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP | H.264,MPEG-4,VC-1,MPEG-2 |
Power & Dimensions
The GeForce GT 425M draws 45W versus the Radeon R5 M420's 75W — a 50% difference. The GeForce GT 425M is more power-efficient. Recommended PSU: 350W (GeForce GT 425M) vs 350W (Radeon R5 M420). Power connectors: PCIe-powered vs Mobile. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 75°C vs 80.
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| TDP | 45W-40% | 75W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | Mobile |
| Length | 0mm | 0mm |
| Height | 0mm | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 75°C-6% | 80 |
| Perf/Watt | 11.1+66% | 6.7 |
Value Analysis
The newer card here is Radeon R5 M420 (2016 vs 2013).
| Feature | GeForce GT 425M | Radeon R5 M420 |
|---|---|---|
| MSRP | — | $300 |
| Codename | GK107 | Emerald |
| Release | April 1 2013 | May 15 2016 |
| Ranking | #857 | #649 |
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