
Quadro K620M vs Radeon R9 M275

Quadro K620M
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Radeon R9 M275
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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 Quadro K620M is positioned at rank 101 and the Radeon R9 M275 is on rank 543, so the Quadro K620M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Quadro K620M
Performance Per Dollar Radeon R9 M275
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Quadro K620M is the superior choice for raw performance. It leads with a 3.9% higher G3D Mark score and 700% more VRAM (4 GB vs 512 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon R9 M275.
| Insight | Quadro K620M | Radeon R9 M275 |
|---|---|---|
| Performance | ✅Leading raw performance (+3.9%) | ❌Lower raw frame rates (-3.9%) |
| Longevity | 🛑Obsolete Architecture (2015 / Maxwell (2014−2017)) | 🛑Obsolete Architecture (2014 / GCN 1.0 (2012−2020)) |
| Ecosystem | Supports FSR Upscaling | Supports FSR Upscaling |
| VRAM | ✅ More VRAM (+700%) | ❌ Less VRAM capacity |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | — |
💎 Value Proposition
While current pricing data is unavailable, the Quadro K620M 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 Quadro K620M and Radeon R9 M275

Quadro K620M
The Quadro K620M is manufactured by NVIDIA. It was released in March 1 2015. It features the Maxwell architecture. The core clock ranges from 1029 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,159 points.

Radeon R9 M275
The Radeon R9 M275 is manufactured by AMD. It was released in January 28 2014. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,115 points. Launch price was $799.99.
Graphics Performance
The Quadro K620M scores 1,159 and the Radeon R9 M275 reaches 1,115 in the G3D Mark benchmark — just a 3.9% difference, making them near-identical in rasterization performance. The Quadro K620M is built on Maxwell while the Radeon R9 M275 uses GCN 1.0, both on a 28 nm process. Shader units: 384 (Quadro K620M) vs 640 (Radeon R9 M275). Raw compute: 0.8632 TFLOPS (Quadro K620M) vs 1.184 TFLOPS (Radeon R9 M275). Boost clocks: 1124 MHz vs 925 MHz.
| Feature | Quadro K620M | Radeon R9 M275 |
|---|---|---|
| G3D Mark Score | 1,159+4% | 1,115 |
| Architecture | Maxwell | GCN 1.0 |
| Process Node | 28 nm | 28 nm |
| Shading Units | 384 | 640+67% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 1.184 TFLOPS+37% |
| Boost Clock | 1124 MHz+22% | 925 MHz |
| ROPs | 8 | 16+100% |
| TMUs | 16 | 40+150% |
| L1 Cache | 128 KB | 160 KB+25% |
| L2 Cache | 1 MB+300% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | Quadro K620M | Radeon R9 M275 |
|---|---|---|
| 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)
The Quadro K620M comes with 4 GB of VRAM, while the Radeon R9 M275 has 512 MB. The Quadro K620M offers 700% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 1 MB (Quadro K620M) vs 0.25 MB (Radeon R9 M275) — the Quadro K620M has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Quadro K620M | Radeon R9 M275 |
|---|---|---|
| VRAM Capacity | 4 GB+700% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 1 MB+300% | 0.25 MB |
Power & Dimensions
The Quadro K620M draws 30W versus the Radeon R9 M275's 75W — a 85.7% difference. The Quadro K620M is more power-efficient. Recommended PSU: 350W (Quadro K620M) vs 350W (Radeon R9 M275). Power connectors: PCIe-powered vs Mobile.
| Feature | Quadro K620M | Radeon R9 M275 |
|---|---|---|
| TDP | 30W-60% | 75W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | Mobile |
| Length | — | 0mm |
| Height | — | 0mm |
| Slots | — | 0 |
| Temp (Load) | — | 80°C |
| Perf/Watt | 38.6+159% | 14.9 |
Value Analysis
The Quadro K620M is the newer GPU (2015 vs 2014).
| Feature | Quadro K620M | Radeon R9 M275 |
|---|---|---|
| MSRP | — | $300 |
| Avg Price (30d) | — | $300 |
| Codename | GM108 | Venus |
| Release | March 1 2015 | January 28 2014 |
| Ranking | #842 | #851 |
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