Radeon HD 6990M vs GeForce GT 750M Mac Edition
Radeon HD 6990M
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GeForce GT 750M Mac Edition
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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 6990M is positioned at rank 233 and the GeForce GT 750M Mac Edition is on rank 228, so the GeForce GT 750M Mac Edition 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 6990M
Performance Per Dollar GeForce GT 750M Mac Edition
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce GT 750M Mac Edition is the superior choice for raw performance. It leads with a 1.4% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6990M.
| Insight | Radeon HD 6990M | GeForce GT 750M Mac Edition |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.4%) | ✅Leading raw performance (+1.4%) |
| Longevity | 🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015)) | 🛑Obsolete Architecture (2013 / Kepler (2012−2018)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ❌ Less VRAM capacity | ✅ More VRAM (+0%) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce GT 750M Mac Edition 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 6990M and GeForce GT 750M Mac Edition
Radeon HD 6990M
The Radeon HD 6990M is manufactured by AMD. It was released in July 12 2011. It features the TeraScale 2 architecture. The core clock speed is 715 MHz. It has 1120 shading units. The thermal design power (TDP) is 100W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,264 points.
GeForce GT 750M Mac Edition
The GeForce GT 750M Mac Edition is manufactured by NVIDIA. It was released in November 8 2013. It features the Kepler architecture. The core clock speed is 926 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,311 points.
Graphics Performance
The Radeon HD 6990M scores 3,264 and the GeForce GT 750M Mac Edition reaches 3,311 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The Radeon HD 6990M is built on TeraScale 2 while the GeForce GT 750M Mac Edition uses Kepler, both on 40 nm vs 28 nm. Shader units: 1,120 (Radeon HD 6990M) vs 384 (GeForce GT 750M Mac Edition). Raw compute: 1.602 TFLOPS (Radeon HD 6990M) vs 0.7112 TFLOPS (GeForce GT 750M Mac Edition).
| Feature | Radeon HD 6990M | GeForce GT 750M Mac Edition |
|---|---|---|
| G3D Mark Score | 3,264 | 3,311+1% |
| Architecture | TeraScale 2 | Kepler |
| Process Node | 40 nm | 28 nm |
| Shading Units | 1120+192% | 384 |
| Compute (TFLOPS) | 1.602 TFLOPS+125% | 0.7112 TFLOPS |
| ROPs | 32+100% | 16 |
| TMUs | 56+75% | 32 |
| L1 Cache | 224 KB+600% | 32 KB |
| L2 Cache | 512 KB+100% | 256 KB |
Advanced Features (DLSS/FSR)
| Feature | Radeon HD 6990M | GeForce GT 750M Mac Edition |
|---|---|---|
| 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)
Both cards feature 2 GB of video memory. Bus width: System vs 64-bit. L2 Cache: 512 KB (Radeon HD 6990M) vs 256 KB (GeForce GT 750M Mac Edition) — the Radeon HD 6990M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon HD 6990M | GeForce GT 750M Mac Edition |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | Shared | GDDR5 |
| Memory Bandwidth | System | Unknown |
| Bus Width | System | 64-bit |
| L2 Cache | 512 KB+100% | 256 KB |
Power & Dimensions
The Radeon HD 6990M draws 100W versus the GeForce GT 750M Mac Edition's 50W — a 66.7% difference. The GeForce GT 750M Mac Edition is more power-efficient. Recommended PSU: 350W (Radeon HD 6990M) vs 350W (GeForce GT 750M Mac Edition). Power connectors: 1x 6-pin vs PCIe-powered.
| Feature | Radeon HD 6990M | GeForce GT 750M Mac Edition |
|---|---|---|
| TDP | 100W | 50W-50% |
| Recommended PSU | 350W | 350W |
| Power Connector | 1x 6-pin | PCIe-powered |
| Slots | — | 0 |
| Temp (Load) | — | 85°C |
| Perf/Watt | 32.6 | 66.2+103% |
Value Analysis
The GeForce GT 750M Mac Edition is the newer GPU (2013 vs 2011).
| Feature | Radeon HD 6990M | GeForce GT 750M Mac Edition |
|---|---|---|
| MSRP | — | $149 |
| Avg Price (30d) | — | $40 |
| Codename | Blackcomb | GK107 |
| Release | July 12 2011 | November 8 2013 |
| Ranking | #691 | #735 |
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