
GeForce 840M vs Mobility Radeon HD 5870

GeForce 840M
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Mobility Radeon HD 5870
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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 Mobility Radeon HD 5870 is on rank 603, 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 Mobility Radeon HD 5870
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 840M is the superior choice for raw performance. It leads with a 1.1% higher G3D Mark score and 100% more VRAM (2 GB vs 1 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Mobility Radeon HD 5870.
| Insight | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| Performance | ✅Leading raw performance (+1.1%) | ❌Lower raw frame rates (-1.1%) |
| Longevity | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) | 🛑Obsolete Architecture (2010 / TeraScale 2 (2009−2015)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+100%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce 840M 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 Mobility Radeon HD 5870

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.

Mobility Radeon HD 5870
The Mobility Radeon HD 5870 is manufactured by AMD. It was released in January 7 2010. It features the TeraScale 2 architecture. The core clock speed is 700 MHz. It has 800 shading units. The thermal design power (TDP) is 50W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,088 points.
Graphics Performance
The GeForce 840M scores 1,100 and the Mobility Radeon HD 5870 reaches 1,088 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The GeForce 840M is built on Maxwell while the Mobility Radeon HD 5870 uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 384 (GeForce 840M) vs 800 (Mobility Radeon HD 5870). Raw compute: 0.8632 TFLOPS (GeForce 840M) vs 1.12 TFLOPS (Mobility Radeon HD 5870).
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| G3D Mark Score | 1,100+1% | 1,088 |
| Architecture | Maxwell | TeraScale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 384 | 800+108% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 1.12 TFLOPS+30% |
| ROPs | 8 | 16+100% |
| TMUs | 16 | 40+150% |
| L1 Cache | 192 KB+140% | 80 KB |
| L2 Cache | 1 MB+300% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| 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 Mobility Radeon HD 5870 has 1 GB. The GeForce 840M offers 100% 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 (Mobility Radeon HD 5870) — the GeForce 840M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| VRAM Capacity | 2 GB+100% | 1 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 1 MB+300% | 0.25 MB |
Display & API Support
DirectX support: 11.0 (GeForce 840M) vs 11 (5.0) (Mobility Radeon HD 5870). Vulkan: 1.2 vs N/A. OpenGL: 4.5 vs 4.4. Maximum simultaneous displays: 1 vs 0.
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| DirectX | 11.0 | 11 (5.0) |
| Vulkan | 1.2 | N/A |
| OpenGL | 4.5+2% | 4.4 |
| Max Displays | 1 | 0 |
Media & Encoding
Hardware encoder: NVENC 2.0 (GeForce 840M) vs None (Mobility Radeon HD 5870). Decoder: PureVideo HD VP6 vs UVD 2.2. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 (GeForce 840M) vs H.264,VC-1,MPEG-2 (Mobility Radeon HD 5870).
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| Encoder | NVENC 2.0 | None |
| Decoder | PureVideo HD VP6 | UVD 2.2 |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce 840M draws 33W versus the Mobility Radeon HD 5870's 50W — a 41% difference. The GeForce 840M is more power-efficient. Recommended PSU: 350W (GeForce 840M) vs 350W (Mobility Radeon HD 5870). Power connectors: Legacy vs PCIe-powered. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 75°C vs 85.
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| TDP | 33W-34% | 50W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Length | 0mm | 0mm |
| Height | 0mm | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 75°C-12% | 85 |
| Perf/Watt | 33.3+53% | 21.8 |
Value Analysis
The GeForce 840M is the newer GPU (2014 vs 2010).
| Feature | GeForce 840M | Mobility Radeon HD 5870 |
|---|---|---|
| MSRP | — | $399 |
| Avg Price (30d) | — | $50 |
| Codename | GM108 | Broadway |
| Release | March 12 2014 | January 7 2010 |
| Ranking | #854 | #846 |
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