
Quadro K420

Radeon R7 A10-7800
Quadro K420 vs Radeon R7 A10-7800 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 K420 vs Radeon R7 A10-7800 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 K420 vs Radeon R7 A10-7800: 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 K420
2014Why buy it
- ✅Costs $5 less on MSRP ($150 MSRP vs $155 MSRP).
- ✅100% more VRAM for high-resolution textures and newer games (1 GB vs 512 MB).
- ✅Draws 108W instead of 180W, a 72W reduction.
Trade-offs
- ❌Lower average FPS than Radeon R7 A10-7800 across 50 tracked games in our benchmark data.
- ❌2014 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
Radeon R7 A10-7800
2024Why buy it
- ✅15.6% more average FPS across 50 tracked games in our benchmark data.
- ✅Better long-term bet: RDNA 3.0 (2022−2026) on 5nm gives it a newer hardware base for upcoming games.
- ✅More future proof: RDNA 3.0 (2022−2026) on 5nm with a newer platform for upcoming games.
Trade-offs
- ❌Less VRAM, with 512 MB vs 1 GB for high-resolution textures and newer games.
- ❌3.3% HIGHER MSRP$155 MSRPvs$150 MSRP
- ❌66.7% higher power demand at 180W vs 108W.
Quick Answers
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Which GPU is the safer long-term pick for 2026 and beyond?
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Quadro K420 vs Radeon R7 A10-7800 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Quadro K420
The Quadro K420 is manufactured by NVIDIA. It was released in July 22 2014. It features the Kepler architecture. The core clock ranges from 771 MHz to 784 MHz. It has 1344 shading units. The thermal design power (TDP) is 108W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 726 points. Launch price was $854.99.

Radeon R7 A10-7800
The Radeon R7 A10-7800 is manufactured by AMD. It was released in September 11 2024. It features the RDNA 3.0 architecture. The core clock ranges from 1295 MHz to 2335 MHz. It has 3840 shading units. The thermal design power (TDP) is 180W. Manufactured using 5 nm process technology. It features 60 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 740 points.
Graphics Performance
The Quadro K420 scores 726 and the Radeon R7 A10-7800 reaches 740 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The Quadro K420 is built on Kepler while the Radeon R7 A10-7800 uses RDNA 3.0, both on 28 nm vs 5 nm. Shader units: 1,344 (Quadro K420) vs 3,840 (Radeon R7 A10-7800). Raw compute: 2.107 TFLOPS (Quadro K420) vs 35.87 TFLOPS (Radeon R7 A10-7800). Boost clocks: 784 MHz vs 2335 MHz.
| Feature | Quadro K420 | Radeon R7 A10-7800 |
|---|---|---|
| G3D Mark Score | 726 | 740+2% |
| Architecture | Kepler | RDNA 3.0 |
| Process Node | 28 nm | 5 nm |
| Shading Units | 1344 | 3840+186% |
| Compute (TFLOPS) | 2.107 TFLOPS | 35.87 TFLOPS+1602% |
| Boost Clock | 784 MHz | 2335 MHz+198% |
| ROPs | 32 | 96+200% |
| TMUs | 112 | 240+114% |
| L1 Cache | 112 KB | 768 KB+586% |
| L2 Cache | 0.5 MB | 4 MB+700% |
Advanced Features (DLSS/FSR)
| Feature | Quadro K420 | Radeon R7 A10-7800 |
|---|---|---|
| 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)
The Quadro K420 has 1 GB of VRAM, while the Radeon R7 A10-7800 carries 512 MB. Quadro K420 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Quadro K420 and 128-bit on the Radeon R7 A10-7800. L2 Cache: 0.5 MB (Quadro K420) vs 4 MB (Radeon R7 A10-7800) — the Radeon R7 A10-7800 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Quadro K420 | Radeon R7 A10-7800 |
|---|---|---|
| VRAM Capacity | 1 GB+100% | 0.5 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 64-bit | 128-bit+100% |
| L2 Cache | 0.5 MB | 4 MB+700% |
Power & Dimensions
The Quadro K420 draws 108W versus the Radeon R7 A10-7800's 180W — a 50% difference. The Quadro K420 is more power-efficient. Recommended PSU: 350W (Quadro K420) vs 350W (Radeon R7 A10-7800). Power connectors: PCIe-powered vs PCIe-powered.
| Feature | Quadro K420 | Radeon R7 A10-7800 |
|---|---|---|
| TDP | 108W-40% | 180W |
| Recommended PSU | 350W | 350W |
| Power Connector | PCIe-powered | PCIe-powered |
| Perf/Watt | 6.7+63% | 4.1 |
Value Analysis
At launch, the Quadro K420 came in at $150, while the Radeon R7 A10-7800 launched at $155. On MSRP, Quadro K420 was 3.2% cheaper ($5 less). Performance per dollar on MSRP (G3D Mark / MSRP): 4.8 (Quadro K420) vs 4.8 (Radeon R7 A10-7800) — the Radeon R7 A10-7800 offers 0% better value. The newer card here is Radeon R7 A10-7800 (2024 vs 2014).
| Feature | Quadro K420 | Radeon R7 A10-7800 |
|---|---|---|
| MSRP | $150-3% | $155 |
| Performance per Dollar | 4.8 | 4.8 |
| Codename | GK104 | Navi 32 |
| Release | July 22 2014 | September 11 2024 |
| Ranking | #475 | #131 |
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