
GeForce 940M vs GeForce 840A

GeForce 940M
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GeForce 840A
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar GeForce 840A
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 940M is the superior choice for raw performance. It leads with a 1.6% higher G3D Mark score and 300% more VRAM (2 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce 840A.
| Insight | GeForce 940M | GeForce 840A |
|---|---|---|
| Performance | ✅Leading raw performance (+1.6%) | ❌Lower raw frame rates (-1.6%) |
| Longevity | 🛑Obsolete Architecture (2015 / Maxwell (2014−2017)) | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce 940M 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 940M and GeForce 840A

GeForce 940M
The GeForce 940M is manufactured by NVIDIA. It was released in March 13 2015. It features the Maxwell architecture. The core clock ranges from 1072 MHz to 1176 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,133 points.

GeForce 840A
The GeForce 840A is manufactured by NVIDIA. It was released in March 17 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: 1,115 points.
Graphics Performance
The GeForce 940M scores 1,133 and the GeForce 840A reaches 1,115 in the G3D Mark benchmark — just a 1.6% difference, making them near-identical in rasterization performance. The GeForce 940M is built on Maxwell while the GeForce 840A uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce 940M) vs 384 (GeForce 840A). Raw compute: 0.9032 TFLOPS (GeForce 940M) vs 0.8632 TFLOPS (GeForce 840A). Boost clocks: 1176 MHz vs 1124 MHz.
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| G3D Mark Score | 1,133+2% | 1,115 |
| Architecture | Maxwell | Maxwell |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.9032 TFLOPS+5% | 0.8632 TFLOPS |
| Boost Clock | 1176 MHz+5% | 1124 MHz |
| ROPs | 8 | 8 |
| TMUs | 24+50% | 16 |
| L1 Cache | 192 KB | 192 KB |
| L2 Cache | 1 MB | 1 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The GeForce 940M comes with 2 GB of VRAM, while the GeForce 840A has 512 MB. The GeForce 940M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit.
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 1 MB | 1 MB |
Display & API Support
DirectX support: 12 (11_0) (GeForce 940M) vs 12 (11_0) (GeForce 840A). Vulkan: 1.1 vs 1.1. OpenGL: 4.6 vs 4.5. Maximum simultaneous displays: 4 vs 3.
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| DirectX | 12 (11_0) | 12 (11_0) |
| Vulkan | 1.1 | 1.1 |
| OpenGL | 4.6+2% | 4.5 |
| Max Displays | 4+33% | 3 |
Media & Encoding
Hardware encoder: NVENC (Maxwell) (GeForce 940M) vs NVENC (Maxwell) (GeForce 840A). Decoder: PureVideo HD (VP6) vs NVDEC (Maxwell). Supported codecs: H.264,H.265,VP9 (GeForce 940M) vs H.264,VC-1,MPEG-2 (GeForce 840A).
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| Encoder | NVENC (Maxwell) | NVENC (Maxwell) |
| Decoder | PureVideo HD (VP6) | NVDEC (Maxwell) |
| Codecs | H.264,H.265,VP9 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce 940M draws 33W versus the GeForce 840A's 33W — a 0% difference. The GeForce 840A is more power-efficient. Recommended PSU: 350W (GeForce 940M) vs 350W (GeForce 840A). Power connectors: Legacy vs Legacy. Typical load temperature: 75 vs 75°C.
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| TDP | 33W | 33W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | Legacy |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | — |
| Temp (Load) | 75 | 75°C |
| Perf/Watt | 34.3+1% | 33.8 |
Value Analysis
The GeForce 940M is the newer GPU (2015 vs 2014).
| Feature | GeForce 940M | GeForce 840A |
|---|---|---|
| MSRP | — | $100 |
| Avg Price (30d) | — | $25 |
| Codename | GM108 | GM108 |
| Release | March 13 2015 | March 17 2014 |
| Ranking | #847 | #850 |
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