GeForce GT 745M vs GeForce 840A
GeForce GT 745M
Popular choices:
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. The GeForce GT 745M is positioned at rank 136 and the GeForce 840A is on rank 349, so the GeForce GT 745M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar GeForce GT 745M
Performance Per Dollar GeForce 840A
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce 840A is the superior choice for raw performance. It leads with a 3.1% higher G3D Mark score. However, the GeForce GT 745M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce GT 745M | GeForce 840A |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.1%) | ✅Leading raw performance (+3.1%) |
| Longevity | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) | 🛑Obsolete Architecture (2014 / Maxwell (2014−2017)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+300%) | ❌ Less VRAM capacity |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce 840A 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 GT 745M and GeForce 840A
GeForce GT 745M
The GeForce GT 745M 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: 1,081 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 GT 745M scores 1,081 and the GeForce 840A reaches 1,115 in the G3D Mark benchmark — just a 3.1% difference, making them near-identical in rasterization performance. The GeForce GT 745M is built on Kepler while the GeForce 840A uses Maxwell, both on a 28 nm process. Shader units: 384 (GeForce GT 745M) vs 384 (GeForce 840A). Raw compute: 0.4216 TFLOPS (GeForce GT 745M) vs 0.8632 TFLOPS (GeForce 840A).
| Feature | GeForce GT 745M | GeForce 840A |
|---|---|---|
| G3D Mark Score | 1,081 | 1,115+3% |
| Architecture | Kepler | Maxwell |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 384 |
| Compute (TFLOPS) | 0.4216 TFLOPS | 0.8632 TFLOPS+105% |
| ROPs | 16+100% | 8 |
| TMUs | 32+100% | 16 |
| L1 Cache | 32 KB | 192 KB+500% |
| L2 Cache | 0.25 MB | 1 MB+300% |
Advanced Features (DLSS/FSR)
| Feature | GeForce GT 745M | 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 GT 745M comes with 2 GB of VRAM, while the GeForce 840A has 512 MB. The GeForce GT 745M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 0.25 MB (GeForce GT 745M) vs 1 MB (GeForce 840A) — the GeForce 840A has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce GT 745M | GeForce 840A |
|---|---|---|
| VRAM Capacity | 2 GB+300% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 0.25 MB | 1 MB+300% |
Display & API Support
DirectX support: 11.0 (GeForce GT 745M) vs 12 (11_0) (GeForce 840A). Vulkan: 1.2 vs 1.1. OpenGL: 4.2 vs 4.5. Maximum simultaneous displays: 1 vs 3.
| Feature | GeForce GT 745M | GeForce 840A |
|---|---|---|
| DirectX | 11.0 | 12 (11_0)+9% |
| Vulkan | 1.2+9% | 1.1 |
| OpenGL | 4.2 | 4.5+7% |
| Max Displays | 1 | 3+200% |
Media & Encoding
Hardware encoder: NVENC 1.0 (GeForce GT 745M) vs NVENC (Maxwell) (GeForce 840A). Decoder: PureVideo HD VP5 vs NVDEC (Maxwell). Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 (GeForce GT 745M) vs H.264,VC-1,MPEG-2 (GeForce 840A).
| Feature | GeForce GT 745M | GeForce 840A |
|---|---|---|
| Encoder | NVENC 1.0 | NVENC (Maxwell) |
| Decoder | PureVideo HD VP5 | NVDEC (Maxwell) |
| Codecs | MPEG-2,H.264,VC-1,MPEG-4 ASP,H.265 | H.264,VC-1,MPEG-2 |
Power & Dimensions
The GeForce GT 745M draws 45W versus the GeForce 840A's 33W — a 30.8% difference. The GeForce 840A is more power-efficient. Recommended PSU: 350W (GeForce GT 745M) vs 350W (GeForce 840A). Power connectors: PCIe-powered vs Legacy. Typical load temperature: 75°C vs 75°C.
| Feature | GeForce GT 745M | GeForce 840A |
|---|---|---|
| TDP | 45W | 33W-27% |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | Legacy |
| Length | 0mm | — |
| Height | 0mm | — |
| Slots | 0 | — |
| Temp (Load) | 75°C | 75°C |
| Perf/Watt | 24.0 | 33.8+41% |
Value Analysis
The GeForce 840A is the newer GPU (2014 vs 2013).
| Feature | GeForce GT 745M | GeForce 840A |
|---|---|---|
| MSRP | — | $100 |
| Avg Price (30d) | — | $25 |
| Codename | GK107 | GM108 |
| Release | April 1 2013 | March 17 2014 |
| Ranking | #857 | #850 |
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