GeForce 840M vs Radeon R9 M275
GeForce 840M
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Radeon R9 M275
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Performance Spectrum - GPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money. The GeForce 840M is positioned at rank 352 and the Radeon R9 M275 is on rank 543, so the GeForce 840M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce 840M
Performance Per Dollar Radeon R9 M275
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon R9 M275 is the superior choice for raw performance. It leads with a 1.4% higher G3D Mark score. However, the GeForce 840M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.4%) | ✅Leading raw performance (+1.4%) |
| Longevity | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) | 🛑Obsolete Architecture (2014 / GCN 1.0 (2012−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon R9 M275 remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of GeForce 840M and Radeon R9 M275
GeForce 840M
The GeForce 840M is manufactured by NVIDIA. It was released in March 12 2014. It features the Maxwell architecture. The core clock ranges from 1029 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,100 points.
Radeon R9 M275
The Radeon R9 M275 is manufactured by AMD. It was released in January 28 2014. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,115 points. Launch price was $799.99.
Graphics Performance
The GeForce 840M scores 1,100 and the Radeon R9 M275 reaches 1,115 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The GeForce 840M is built on Maxwell while the Radeon R9 M275 uses GCN 1.0, both on a 28 nm process. Shader units: 384 (GeForce 840M) vs 640 (Radeon R9 M275). Raw compute: 0.8632 TFLOPS (GeForce 840M) vs 1.184 TFLOPS (Radeon R9 M275). Boost clocks: 1124 MHz vs 925 MHz.
| Feature | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| G3D Mark Score | 1,100 | 1,115+1% |
| Architecture | Maxwell | GCN 1.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 640+67% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 1.184 TFLOPS+37% |
| Boost Clock | 1124 MHz+22% | 925 MHz |
| ROPs | 8 | 16+100% |
| TMUs | 16 | 40+150% |
| L1 Cache | 192 KB+20% | 160 KB |
| L2 Cache | 1 MB+300% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce 840M comes with 2 GB of VRAM, while the Radeon R9 M275 has 512 MB. The GeForce 840M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 1 MB (GeForce 840M) vs 0.25 MB (Radeon R9 M275) — the GeForce 840M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | 64 GB/s |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 1 MB+300% | 0.25 MB |
Display & API Support
DirectX support: 11.0 (GeForce 840M) vs 12 (FL11_1) (Radeon R9 M275). Vulkan: 1.2 vs 1.2. OpenGL: 4.5 vs 4.1. Maximum simultaneous displays: 1 vs 6.
| Feature | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| DirectX | 11.0 | 12 (FL11_1)+9% |
| Vulkan | 1.2 | 1.2 |
| OpenGL | 4.5+10% | 4.1 |
| Max Displays | 1 | 6+500% |
Media & Encoding
Hardware encoder: NVENC 2.0 (GeForce 840M) vs UVD3 (Radeon R9 M275). Decoder: PureVideo HD VP6 vs VCE. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 (GeForce 840M) vs H.264,MPEG-2,VC-1,Flash (Radeon R9 M275).
| Feature | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| Encoder | NVENC 2.0 | UVD3 |
| Decoder | PureVideo HD VP6 | VCE |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 | H.264,MPEG-2,VC-1,Flash |
Power & Dimensions
The GeForce 840M draws 33W versus the Radeon R9 M275's 75W — a 77.8% difference. The GeForce 840M is more power-efficient. Recommended PSU: 350W (GeForce 840M) vs 350W (Radeon R9 M275). Power connectors: Legacy vs Mobile. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 75°C vs 80°C.
| Feature | GeForce 840M | Radeon R9 M275 |
|---|---|---|
| TDP | 33W-56% | 75W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | Mobile |
| Length | 0mm | 0mm |
| Height | 0mm | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 75°C-6% | 80°C |
| Perf/Watt | 33.3+123% | 14.9 |
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