T400 4GB vs Radeon 680M
T400 4GB
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Radeon 680M
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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 T400 4GB is positioned at rank 63 and the Radeon 680M is on rank 331, so the T400 4GB offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar T400 4GB
Performance Per Dollar Radeon 680M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon 680M is the superior choice for raw performance. It leads with a 0.9% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the T400 4GB.
| Insight | T400 4GB | Radeon 680M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.9%) | ✅Leading raw performance (+0.9%) |
| Longevity | Turing (2018−2022) (12nm) | RDNA 2.0 (2020−2025) (6nm) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | 📏 Compact / SFF Friendly | 📏 Compact / SFF Friendly |
💎 Value Proposition
The Radeon 680M offers a compelling cost-to-performance ratio. Priced at $80 versus $99 for the T400 4GB, it costs 19% less. While it maintains basic entry-level capabilities, this results in a 24.8% higher cost efficiency score.
| Insight | T400 4GB | Radeon 680M |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+24.8%) |
| Upfront Cost | ⚠️Higher upfront cost ($99) | ✅More affordable ($80) |
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 T400 4GB and Radeon 680M
T400 4GB
The T400 4GB 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: 3,803 points.
Radeon 680M
The Radeon 680M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 2000 MHz to 2200 MHz. It has 768 shading units. The thermal design power (TDP) is 50W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 3,836 points.
Graphics Performance
The T400 4GB scores 3,803 and the Radeon 680M reaches 3,836 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The T400 4GB is built on Turing while the Radeon 680M uses RDNA 2.0, both on 12 nm vs 6 nm. Shader units: 384 (T400 4GB) vs 768 (Radeon 680M). Raw compute: 1.094 TFLOPS (T400 4GB) vs 3.379 TFLOPS (Radeon 680M). Boost clocks: 1425 MHz vs 2200 MHz.
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| G3D Mark Score | 3,803 | 3,836 |
| Architecture | Turing | RDNA 2.0 |
| Process Node | 12 nm | 6 nm |
| Shading Units | 384 | 768+100% |
| Compute (TFLOPS) | 1.094 TFLOPS | 3.379 TFLOPS+209% |
| Boost Clock | 1425 MHz | 2200 MHz+54% |
| ROPs | 16 | 32+100% |
| TMUs | 24 | 48+100% |
| L1 Cache | 384 KB+50% | 256 KB |
| L2 Cache | 1 MB | 2 MB+100% |
Advanced Features (DLSS/FSR)
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| 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)
Both cards feature 2 GB of video memory. Bus width: 64-bit vs System. L2 Cache: 1 MB (T400 4GB) vs 2 MB (Radeon 680M) — the Radeon 680M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | Shared |
| Bus Width | 64-bit | System |
| L2 Cache | 1 MB | 2 MB+100% |
Display & API Support
DirectX support: 12_0 (T400 4GB) vs 12_2 (Radeon 680M). Maximum simultaneous displays: 3 vs 0.
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| DirectX | 12_0 | 12_2 |
| Max Displays | 3 | 0 |
Media & Encoding
Hardware encoder: NVENC 7th Gen (T400 4GB) vs VCN 3.1 (Radeon 680M). Decoder: NVDEC 4th Gen vs VCN 3.1.
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| Encoder | NVENC 7th Gen | VCN 3.1 |
| Decoder | NVDEC 4th Gen | VCN 3.1 |
Power & Dimensions
The T400 4GB draws 30W versus the Radeon 680M's 50W — a 50% difference. The T400 4GB is more power-efficient. Recommended PSU: 350W (T400 4GB) vs 350W (Radeon 680M). Power connectors: PCIe-powered vs PCIe-powered. Card length: 156mm vs 1mm, occupying 1 vs 0 slots.
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| TDP | 30W-40% | 50W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Length | 156mm | 1mm |
| Slots | 1 | 0-100% |
| Perf/Watt | 126.8+65% | 76.7 |
Value Analysis
The Radeon 680M costs 19.2% less ($19 savings) at current market prices. Performance per dollar (G3D Mark / price): 38.4 (T400 4GB) vs 48.0 (Radeon 680M) — the Radeon 680M offers 25% better value. The Radeon 680M is the newer GPU (2023 vs 2021).
| Feature | T400 4GB | Radeon 680M |
|---|---|---|
| MSRP | $159 | — |
| Avg Price (30d) | $99 | $80-19% |
| Performance per Dollar | 38.4 | 48.0+25% |
| Codename | TU117 | Rembrandt+ |
| Release | May 6 2021 | January 3 2023 |
| Ranking | #518 | #512 |
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