CPU
GPU
Radeon HD 7750M
Popular choices:
GeForce GT 640
Popular choices:
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 7750M is positioned at rank 353 and the GeForce GT 640 is on rank 107, so the GeForce GT 640 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 7750M
Performance Per Dollar GeForce GT 640
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon HD 7750M is the superior choice for raw performance. It leads with a 1.9% higher G3D Mark score. However, the GeForce GT 640 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| Performance | ✅Leading raw performance (+1.9%) | ❌Lower raw frame rates (-1.9%) |
| Longevity | 🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020)) | 🛑Obsolete Architecture (2012 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+100%) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | 📏 Compact / SFF Friendly |
💎 Value Proposition
While current pricing data is unavailable, the Radeon HD 7750M 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 7750M and GeForce GT 640
Radeon HD 7750M
The Radeon HD 7750M is manufactured by AMD. It was released in April 24 2012. It features the GCN 1.0 architecture. The core clock speed is 575 MHz. It has 512 shading units. The thermal design power (TDP) is 28W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,191 points.
GeForce GT 640
The GeForce GT 640 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,169 points. Launch price was $99.
Graphics Performance
The Radeon HD 7750M scores 1,191 and the GeForce GT 640 reaches 1,169 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The Radeon HD 7750M is built on GCN 1.0 while the GeForce GT 640 uses Kepler, both on a 28 nm process. Shader units: 512 (Radeon HD 7750M) vs 384 (GeForce GT 640). Raw compute: 0.5888 TFLOPS (Radeon HD 7750M) vs 0.6927 TFLOPS (GeForce GT 640).
| Feature | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| G3D Mark Score | 1,191+2% | 1,169 |
| Architecture | GCN 1.0 | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 512+33% | 384 |
| Compute (TFLOPS) | 0.5888 TFLOPS | 0.6927 TFLOPS+18% |
| ROPs | 16 | 16 |
| TMUs | 32 | 32 |
| L1 Cache | 128 KB+300% | 32 KB |
| L2 Cache | 256 KB | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| 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 7750M comes with 2 GB of VRAM, while the GeForce GT 640 has 4 GB. The GeForce GT 640 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.
| Feature | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| VRAM Capacity | 2 GB | 4 GB+100% |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 128-bit |
| L2 Cache | 256 KB | 256 KB |
Display & API Support
DirectX support: 12 (Radeon HD 7750M) vs 11.0 (GeForce GT 640). Vulkan: 1.2 vs 1.1. OpenGL: 4.6 vs 4.5. Maximum simultaneous displays: 6 vs 3.
| Feature | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| DirectX | 12+9% | 11.0 |
| Vulkan | 1.2+9% | 1.1 |
| OpenGL | 4.6+2% | 4.5 |
| Max Displays | 6+100% | 3 |
Media & Encoding
Hardware encoder: VCE 1.0 (Radeon HD 7750M) vs NVENC 1.0 (GeForce GT 640). Decoder: UVD3 vs PureVideo HD VP5. Supported codecs: H.264,VC-1,MPEG-2,MVC (Radeon HD 7750M) vs MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640).
| Feature | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| Encoder | VCE 1.0 | NVENC 1.0 |
| Decoder | UVD3 | PureVideo HD VP5 |
| Codecs | H.264,VC-1,MPEG-2,MVC | MPEG-2,H.264,VC-1,MPEG-4 ASP |
Power & Dimensions
The Radeon HD 7750M draws 28W versus the GeForce GT 640's 65W — a 79.6% difference. The Radeon HD 7750M is more power-efficient. Recommended PSU: 350W (Radeon HD 7750M) vs 300W (GeForce GT 640). Power connectors: 1x 6-pin vs None. Typical load temperature: 75°C vs 60°C.
| Feature | Radeon HD 7750M | GeForce GT 640 |
|---|---|---|
| TDP | 28W-57% | 65W |
| Recommended PSU | 350W | 300W-14% |
| Power Connector | 1x 6-pin | None |
| Length | — | 145mm |
| Height | — | 111mm |
| Slots | — | 1 |
| Temp (Load) | 75°C | 60°C-20% |
| Perf/Watt | 42.5+136% | 18.0 |
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