Maxwell GPU Surface Book (940M, GDDR5)
T400
Maxwell GPU Surface Book (940M, GDDR5) vs T400 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.
Maxwell GPU Surface Book (940M, GDDR5) vs T400 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
Maxwell GPU Surface Book (940M, GDDR5) vs T400: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Maxwell GPU Surface Book (940M, GDDR5)
2015Why buy it
- ✅Costs $30 less on MSRP ($150 MSRP vs $180 MSRP).
- ✅Delivers 16.4% more G3D Mark for each dollar spent, at 23.3 vs 20.1 G3D/$ ($150 MSRP vs $180 MSRP).
Trade-offs
- ❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
- ❌2015 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
T400
2021Why buy it
- ✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
- ✅Maxwell GPU Surface Book (940M, GDDR5) is already obsolete for modern gaming, so T400 is the less risky modern option long term.
- ✅More future proof: Turing (2018−2022) on 12nm with a newer platform for upcoming games.
Trade-offs
- ❌Older hardware, 4 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
- ❌20% HIGHER MSRP$180 MSRPvs$150 MSRP
- ❌Lower G3D Mark per dollar, at 20.1 vs 23.3 G3D/$ ($180 MSRP vs $150 MSRP).
Quick Answers
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Maxwell GPU Surface Book (940M, GDDR5) vs T400 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Maxwell GPU Surface Book (940M, GDDR5)
The Maxwell GPU Surface Book (940M, GDDR5) is manufactured by an unknown manufacturer. It was released in October 1 2015. It features the Maxwell architecture. The core clock ranges from 954 MHz to 993 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,500 points.
T400
The T400 is manufactured by an unknown manufacturer. It was released in May 6 2021. It features the Turing architecture. The core clock ranges from 420 MHz to 1425 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 12 nm process technology. G3D Mark benchmark score: 3,609 points.
Graphics Performance
The Maxwell GPU Surface Book (940M, GDDR5) scores 3,500 and the T400 reaches 3,609 in the G3D Mark benchmark — just a 3.1% difference, making them near-identical in rasterization performance. The Maxwell GPU Surface Book (940M, GDDR5) is built on Maxwell while the T400 uses Turing, both on 28 nm vs 12 nm. Shader units: 384 (Maxwell GPU Surface Book (940M, GDDR5)) vs 384 (T400). Boost clocks: 993 MHz vs 1425 MHz.
| Feature | Maxwell GPU Surface Book (940M, GDDR5) | T400 |
|---|---|---|
| G3D Mark Score | 3,500 | 3,609+3% |
| Architecture | Maxwell | Turing |
| Process Node | 28 nm | 12 nm |
| Shading Units | 384 | 384 |
| Boost Clock | 993 MHz | 1425 MHz+44% |
Advanced Features (DLSS/FSR)
| Feature | Maxwell GPU Surface Book (940M, GDDR5) | T400 |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | Standard |
Video Memory (VRAM)
The Maxwell GPU Surface Book (940M, GDDR5) has 2 GB of VRAM, while the T400 carries 4 GB. T400 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the Maxwell GPU Surface Book (940M, GDDR5) and 64-bit on the T400.
| Feature | Maxwell GPU Surface Book (940M, GDDR5) | T400 |
|---|---|---|
| VRAM Capacity | 2 GB | 4 GB+100% |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit+100% | 64-bit |
Power & Dimensions
The Maxwell GPU Surface Book (940M, GDDR5) draws 30W versus the T400's 30W — a 0% difference. The T400 is more power-efficient. Recommended PSU: 350W (Maxwell GPU Surface Book (940M, GDDR5)) vs 350W (T400). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | Maxwell GPU Surface Book (940M, GDDR5) | T400 |
|---|---|---|
| TDP | 30W | 30W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Slots | 0 | — |
| Temp (Load) | 75 | — |
| Perf/Watt | 116.7 | 120.3+3% |
Value Analysis
At launch, the Maxwell GPU Surface Book (940M, GDDR5) came in at $150, while the T400 launched at $180. On MSRP, Maxwell GPU Surface Book (940M, GDDR5) was 16.7% cheaper ($30 less). Performance per dollar on MSRP (G3D Mark / MSRP): 23.3 (Maxwell GPU Surface Book (940M, GDDR5)) vs 20.1 (T400) — the Maxwell GPU Surface Book (940M, GDDR5) offers 15.9% better value. The newer card here is T400 (2021 vs 2015).
| Feature | Maxwell GPU Surface Book (940M, GDDR5) | T400 |
|---|---|---|
| MSRP | $150-17% | $180 |
| Performance per Dollar | 23.3+16% | 20.1 |
| Codename | Surface Book | TU117 |
| Release | October 1 2015 | May 6 2021 |
| Ranking | #782 | #532 |
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