Radeon HD 6750M vs GeForce GT 645M
Radeon HD 6750M
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GeForce GT 645M
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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 Radeon HD 6750M is positioned at rank 236 and the GeForce GT 645M is on rank 80, so the GeForce GT 645M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon HD 6750M
Performance Per Dollar GeForce GT 645M
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 645M is the superior choice for raw performance. It leads with a 0.9% higher G3D Mark score and 100% more VRAM (2 GB vs 1 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6750M.
| Insight | Radeon HD 6750M | GeForce GT 645M |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.9%) | ✅Leading raw performance (+0.9%) |
| Longevity | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100%) |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce GT 645M 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 Radeon HD 6750M and GeForce GT 645M
Radeon HD 6750M
The Radeon HD 6750M is manufactured by AMD. It was released in January 4 2011. It features the TeraScale 2 architecture. The core clock speed is 600 MHz. It has 480 shading units. The thermal design power (TDP) is 35W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 937 points.
GeForce GT 645M
The GeForce GT 645M is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is Up to 710 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 945 points.
Graphics Performance
The Radeon HD 6750M scores 937 and the GeForce GT 645M reaches 945 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The Radeon HD 6750M is built on TeraScale 2 while the GeForce GT 645M uses Kepler, both on 40 nm vs 28 nm. Shader units: 480 (Radeon HD 6750M) vs 384 (GeForce GT 645M). Raw compute: 0.576 TFLOPS (Radeon HD 6750M) vs 0.5445 TFLOPS (GeForce GT 645M).
| Feature | Radeon HD 6750M | GeForce GT 645M |
|---|---|---|
| G3D Mark Score | 937 | 945 |
| Architecture | TeraScale 2 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 480+25% | 384 |
| Compute (TFLOPS) | 0.576 TFLOPS+6% | 0.5445 TFLOPS |
| ROPs | 8 | 16+100% |
| TMUs | 24 | 32+33% |
| L1 Cache | 48 KB+50% | 32 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6750M | GeForce GT 645M |
|---|---|---|
| Upscaling Tech | FSR 1.0 (Software) | FSR 1.0 (Software) |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | Standard |
Video Memory (VRAM)
The Radeon HD 6750M comes with 1 GB of VRAM, while the GeForce GT 645M has 2 GB. The GeForce GT 645M offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.
| Feature | Radeon HD 6750M | GeForce GT 645M |
|---|---|---|
| VRAM Capacity | 1 GB | 2 GB+100% |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 128-bit |
| L2 Cache | 256 KB | 256 KB |
Power & Dimensions
The Radeon HD 6750M draws 35W versus the GeForce GT 645M's 32W — a 9% difference. The GeForce GT 645M is more power-efficient. Recommended PSU: 350W (Radeon HD 6750M) vs 350W (GeForce GT 645M). Power connectors: 1x 6-pin vs PCIe-powered.
| Feature | Radeon HD 6750M | GeForce GT 645M |
|---|---|---|
| TDP | 35W | 32W-9% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | — | 0 |
| Temp (Load) | — | 70°C |
| Perf/Watt | 26.8 | 29.5+10% |
Value Analysis
The GeForce GT 645M is the newer GPU (2012 vs 2011).
| Feature | Radeon HD 6750M | GeForce GT 645M |
|---|---|---|
| Avg Price (30d) | $60 | — |
| Codename | Whistler | GK107 |
| Release | January 4 2011 | October 1 2012 |
| Ranking | #905 | #903 |
Top Performing GPUs
The most powerful gpus ranked by G3D Mark benchmark scores.
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