
Quadro K620

Radeon HD 6870
Quadro K620 vs Radeon HD 6870 Performance Spectrum
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.
Quadro K620 vs Radeon HD 6870 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
Quadro K620 vs Radeon HD 6870: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Quadro K620
2014Why buy it
- ✅Costs $89 less on MSRP ($150 MSRP vs $239 MSRP).
- ✅Delivers 59.8% more G3D Mark for each dollar spent, at 14.8 vs 9.2 G3D/$ ($150 MSRP vs $239 MSRP).
- ✅Draws 45W instead of 151W, a 106W reduction.
Trade-offs
- ❌Lower average FPS than Radeon HD 6870 across 50 tracked games in our benchmark data.
- ❌2014 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon HD 6870
2010Why buy it
- ✅48.5% more average FPS across 50 tracked games in our benchmark data.
Trade-offs
- ❌2010 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌59.3% HIGHER MSRP$239 MSRPvs$150 MSRP
- ❌Lower G3D Mark per dollar, at 9.2 vs 14.8 G3D/$ ($239 MSRP vs $150 MSRP).
- ❌235.6% higher power demand at 151W vs 45W.
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Quadro K620 vs Radeon HD 6870 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Quadro K620
The Quadro K620 is manufactured by NVIDIA. It was released in July 22 2014. It features the Maxwell architecture. The core clock ranges from 1058 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,213 points. Launch price was $189.89.

Radeon HD 6870
The Radeon HD 6870 is manufactured by AMD. It was released in October 21 2010. It features the TeraScale 2 architecture. The boost clock speed is 900 MHz. It has 1120 shading units. The thermal design power (TDP) is 151W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 2,206 points. Launch price was $239.
Graphics Performance
The Quadro K620 scores 2,213 and the Radeon HD 6870 reaches 2,206 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The Quadro K620 is built on Maxwell while the Radeon HD 6870 uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 384 (Quadro K620) vs 1,120 (Radeon HD 6870). Raw compute: 0.8632 TFLOPS (Quadro K620) vs 2.016 TFLOPS (Radeon HD 6870). Boost clocks: 1124 MHz vs 900 MHz.
| Feature | Quadro K620 | Radeon HD 6870 |
|---|---|---|
| G3D Mark Score | 2,213 | 2,206 |
| Architecture | Maxwell | TeraScale 2 |
| Process Node | 28 nm | 40 nm |
| Shading Units | 384 | 1120+192% |
| Compute (TFLOPS) | 0.8632 TFLOPS | 2.016 TFLOPS+134% |
| Boost Clock | 1124 MHz+25% | 900 MHz |
| ROPs | 16 | 32+100% |
| TMUs | 24 | 56+133% |
| L1 Cache | 192 KB | 224 KB+17% |
| L2 Cache | 2 MB+300% | 0.5 MB |
Advanced Features (DLSS/FSR)
| Feature | Quadro K620 | Radeon HD 6870 |
|---|---|---|
| Upscaling Tech | Upscaling support | FSR Upscaling / FSR 4 |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | AMD Anti-Lag |
Video Memory (VRAM)
Both cards ship with 2 GB of GDDR5. Memory bus width is 64-bit on the Quadro K620 and 128-bit on the Radeon HD 6870. L2 Cache: 2 MB (Quadro K620) vs 0.5 MB (Radeon HD 6870) — the Quadro K620 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Quadro K620 | Radeon HD 6870 |
|---|---|---|
| VRAM Capacity | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 2 MB+300% | 0.5 MB |
Power & Dimensions
The Quadro K620 draws 45W versus the Radeon HD 6870's 151W — a 108.2% difference. The Quadro K620 is more power-efficient. Recommended PSU: 350W (Quadro K620) vs 500W (Radeon HD 6870). Power connectors: PCIe-powered vs 2x 6-pin.
| Feature | Quadro K620 | Radeon HD 6870 |
|---|---|---|
| TDP | 45W-70% | 151W |
| Recommended PSU | 350W-30% | 500W |
| Power Connector | PCIe-powered | 2x 6-pin |
| Length | — | 247mm |
| Height | — | 111mm |
| Slots | — | 2 |
| Temp (Load) | — | 85 |
| Perf/Watt | 49.2+237% | 14.6 |
Value Analysis
At launch, the Quadro K620 came in at $150, while the Radeon HD 6870 launched at $239. On MSRP, Quadro K620 was 37.2% cheaper ($89 less). Performance per dollar on MSRP (G3D Mark / MSRP): 14.8 (Quadro K620) vs 9.2 (Radeon HD 6870) — the Quadro K620 offers 60.9% better value. The newer card here is Quadro K620 (2014 vs 2010).
| Feature | Quadro K620 | Radeon HD 6870 |
|---|---|---|
| MSRP | $150-37% | $239 |
| Performance per Dollar | 14.8+61% | 9.2 |
| Codename | GM107 | Barts |
| Release | July 22 2014 | October 21 2010 |
| Ranking | #660 | #661 |
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