
GeForce 840M

GeForce 940A
GeForce 840M vs GeForce 940A 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 840M vs GeForce 940A 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

Civilization VI

Cyberpunk 2077
GeForce 840M vs GeForce 940A: 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 840M
2014Why buy it
- ✅180.6% more average FPS across 30 tracked games in our benchmark data.
- ✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
Trade-offs
- ❌2014 hardware with 2 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 13.8 G3D/$ (Unknown MSRP vs $80 MSRP).
GeForce 940A
2015Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 13.8 vs 0 G3D/$ ($80 MSRP vs Unknown MSRP).
Trade-offs
- ❌Lower average FPS than GeForce 840M across 30 tracked games in our benchmark data.
- ❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
- ❌2015 hardware with 512 MB 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 840M vs GeForce 940A Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

GeForce 940A
The GeForce 940A is manufactured by NVIDIA. It was released in March 13 2015. 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: 1,107 points.
Graphics Performance
The GeForce 840M scores 1,100 and the GeForce 940A reaches 1,107 in the G3D Mark benchmark — just a 0.6% difference, making them near-identical in rasterization performance. The GeForce 840M is built on Maxwell while the GeForce 940A uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce 840M) vs 384 (GeForce 940A). Raw compute: 0.8632 TFLOPS (GeForce 840M) vs 0.8632 TFLOPS (GeForce 940A). Boost clocks: 1124 MHz vs 1124 MHz.
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| G3D Mark Score | 1,100 | 1,107 |
| Architecture | Maxwell | Maxwell |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.8632 TFLOPS | 0.8632 TFLOPS |
| Boost Clock | 1124 MHz | 1124 MHz |
| ROPs | 8 | 8 |
| TMUs | 16 | 16 |
| L1 Cache | 192 KB | 192 KB |
| L2 Cache | 1 MB | 1 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| 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 840M has 2 GB of VRAM, while the GeForce 940A carries 512 MB. GeForce 840M gives you 300% 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 840M and 128-bit on the GeForce 940A.
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| 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: 11.0 (GeForce 840M) vs 11.0 (GeForce 940A). Vulkan: 1.2 vs 1.2. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 1 vs 1.
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| DirectX | 11.0 | 11.0 |
| Vulkan | 1.2 | 1.2 |
| OpenGL | 4.5 | 4.6+2% |
| Max Displays | 1 | 1 |
Media & Encoding
Hardware encoder: NVENC 2.0 (GeForce 840M) vs NVENC 2 (GeForce 940A). Decoder: PureVideo HD VP6 vs PureVideo HD VP6. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 (GeForce 840M) vs MPEG-2,H.264,VC-1,MPEG-4 (GeForce 940A).
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| Encoder | NVENC 2.0 | NVENC 2 |
| Decoder | PureVideo HD VP6 | PureVideo HD VP6 |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 | MPEG-2,H.264,VC-1,MPEG-4 |
Power & Dimensions
The GeForce 840M draws 33W versus the GeForce 940A's 33W — a 0% difference. The GeForce 940A is more power-efficient. Recommended PSU: 350W (GeForce 840M) vs 350W (GeForce 940A). Power connectors: Legacy vs Legacy. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 75°C vs 75°C.
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| TDP | 33W | 33W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | Legacy |
| Length | 0mm | 0mm |
| Height | 0mm | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 75°C | 75°C |
| Perf/Watt | 33.3 | 33.5 |
Value Analysis
The newer card here is GeForce 940A (2015 vs 2014).
| Feature | GeForce 840M | GeForce 940A |
|---|---|---|
| MSRP | — | $80 |
| Codename | GM108 | GM108 |
| Release | March 12 2014 | March 13 2015 |
| Ranking | #854 | #853 |
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