Radeon RX 6600 XT vs Quadro K420
Aggregate performance score
We've compared Quadro K420 with Radeon RX 6600 XT, including specs and performance data.
RX 6600 XT outperforms K420 by a whopping 2148% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 918 | 94 |
| Place by popularity | not in top-100 | 71 |
| Cost-effectiveness evaluation | 0.08 | 59.34 |
| Power efficiency | 3.18 | 18.34 |
| Architecture | Kepler (2012−2018) | RDNA 2.0 (2020−2024) |
| GPU code name | GK107 | Navi 23 |
| Market segment | Workstation | Desktop |
| Release date | 22 July 2014 (10 years ago) | 30 July 2021 (3 years ago) |
| Launch price (MSRP) | $96.67 | $379 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
RX 6600 XT has 74075% better value for money than Quadro K420.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 192 | 2048 |
| Core clock speed | 876 MHz | 1968 MHz |
| Boost clock speed | no data | 2589 MHz |
| Number of transistors | 1,270 million | 11,060 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | 41 Watt | 160 Watt |
| Texture fill rate | 14.02 | 331.4 |
| Floating-point processing power | 0.3364 TFLOPS | 10.6 TFLOPS |
| ROPs | 16 | 64 |
| TMUs | 16 | 128 |
| Ray Tracing Cores | no data | 32 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Length | 160 mm | 190 mm |
| Width | 1" (2.5 cm) | 2-slot |
| Supplementary power connectors | None | 1x 8-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | 128 Bit | GDDR6 |
| Maximum RAM amount | 1 GB/2 GB | 8 GB |
| Memory bus width | 128 Bit | 128 Bit |
| Memory clock speed | 891 MHz | 2000 MHz |
| Memory bandwidth | Up to 29 GB/s | 256.0 GB/s |
| Shared memory | no data | - |
| Resizable BAR | - | + |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x DVI, 1x DisplayPort | 1x HDMI, 2x DisplayPort |
| Number of simultaneous displays | 4 | no data |
| HDMI | - | + |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Vision Pro | + | no data |
| Mosaic | + | no data |
| nView Desktop Management | + | no data |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 | 12.0 Ultimate (12_2) |
| Shader Model | 5.1 | 6.5 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.1.126 | 1.2 |
| CUDA | 3.0 | - |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Average FPS across all PC games
Here are the average frames per second in a large set of popular games across different resolutions:
| Full HD | 5−6
−2460%
| 128
+2460%
|
| 1440p | 3−4
−2333%
| 73
+2333%
|
| 4K | 1−2
−4100%
| 42
+4100%
|
Cost per frame, $
| 1080p | 19.33
−553%
| 2.96
+553%
|
| 1440p | 32.22
−521%
| 5.19
+521%
|
| 4K | 96.67
−971%
| 9.02
+971%
|
- RX 6600 XT has 553% lower cost per frame in 1080p
- RX 6600 XT has 521% lower cost per frame in 1440p
- RX 6600 XT has 971% lower cost per frame in 4K
FPS performance in popular games
Full HD
Low Preset
| Atomic Heart | 120−130
+0%
|
120−130
+0%
|
| Counter-Strike 2 | 220−230
+0%
|
220−230
+0%
|
| Cyberpunk 2077 | 79
+0%
|
79
+0%
|
Full HD
Medium Preset
| Atomic Heart | 120−130
+0%
|
120−130
+0%
|
| Battlefield 5 | 130−140
+0%
|
130−140
+0%
|
| Counter-Strike 2 | 220−230
+0%
|
220−230
+0%
|
| Cyberpunk 2077 | 78
+0%
|
78
+0%
|
| Far Cry 5 | 151
+0%
|
151
+0%
|
| Fortnite | 170−180
+0%
|
170−180
+0%
|
| Forza Horizon 4 | 150−160
+0%
|
150−160
+0%
|
| Forza Horizon 5 | 159
+0%
|
159
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 150−160
+0%
|
150−160
+0%
|
| Valorant | 220−230
+0%
|
220−230
+0%
|
Full HD
High Preset
| Atomic Heart | 120−130
+0%
|
120−130
+0%
|
| Battlefield 5 | 130−140
+0%
|
130−140
+0%
|
| Counter-Strike 2 | 220−230
+0%
|
220−230
+0%
|
| Counter-Strike: Global Offensive | 270−280
+0%
|
270−280
+0%
|
| Cyberpunk 2077 | 76
+0%
|
76
+0%
|
| Dota 2 | 170
+0%
|
170
+0%
|
| Far Cry 5 | 141
+0%
|
141
+0%
|
| Fortnite | 170−180
+0%
|
170−180
+0%
|
| Forza Horizon 4 | 150−160
+0%
|
150−160
+0%
|
| Forza Horizon 5 | 142
+0%
|
142
+0%
|
| Grand Theft Auto V | 135
+0%
|
135
+0%
|
| Metro Exodus | 95
+0%
|
95
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 150−160
+0%
|
150−160
+0%
|
| The Witcher 3: Wild Hunt | 176
+0%
|
176
+0%
|
| Valorant | 220−230
+0%
|
220−230
+0%
|
Full HD
Ultra Preset
| Battlefield 5 | 130−140
+0%
|
130−140
+0%
|
| Cyberpunk 2077 | 69
+0%
|
69
+0%
|
| Dota 2 | 120
+0%
|
120
+0%
|
| Far Cry 5 | 133
+0%
|
133
+0%
|
| Forza Horizon 4 | 150−160
+0%
|
150−160
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 150−160
+0%
|
150−160
+0%
|
| The Witcher 3: Wild Hunt | 99
+0%
|
99
+0%
|
| Valorant | 220−230
+0%
|
220−230
+0%
|
Full HD
Epic Preset
| Fortnite | 170−180
+0%
|
170−180
+0%
|
1440p
High Preset
| Counter-Strike 2 | 100−110
+0%
|
100−110
+0%
|
| Counter-Strike: Global Offensive | 270−280
+0%
|
270−280
+0%
|
| Grand Theft Auto V | 68
+0%
|
68
+0%
|
| Metro Exodus | 56
+0%
|
56
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+0%
|
170−180
+0%
|
| Valorant | 260−270
+0%
|
260−270
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 100−110
+0%
|
100−110
+0%
|
| Cyberpunk 2077 | 40
+0%
|
40
+0%
|
| Far Cry 5 | 105
+0%
|
105
+0%
|
| Forza Horizon 4 | 110−120
+0%
|
110−120
+0%
|
| The Witcher 3: Wild Hunt | 75−80
+0%
|
75−80
+0%
|
1440p
Epic Preset
| Fortnite | 100−110
+0%
|
100−110
+0%
|
4K
High Preset
| Atomic Heart | 30−35
+0%
|
30−35
+0%
|
| Counter-Strike 2 | 45−50
+0%
|
45−50
+0%
|
| Grand Theft Auto V | 64
+0%
|
64
+0%
|
| Metro Exodus | 34
+0%
|
34
+0%
|
| The Witcher 3: Wild Hunt | 54
+0%
|
54
+0%
|
| Valorant | 240−250
+0%
|
240−250
+0%
|
4K
Ultra Preset
| Battlefield 5 | 60−65
+0%
|
60−65
+0%
|
| Counter-Strike 2 | 45−50
+0%
|
45−50
+0%
|
| Cyberpunk 2077 | 14
+0%
|
14
+0%
|
| Dota 2 | 86
+0%
|
86
+0%
|
| Far Cry 5 | 51
+0%
|
51
+0%
|
| Forza Horizon 4 | 75−80
+0%
|
75−80
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 55−60
+0%
|
55−60
+0%
|
4K
Epic Preset
| Fortnite | 50−55
+0%
|
50−55
+0%
|
This is how Quadro K420 and RX 6600 XT compete in popular games:
- RX 6600 XT is 2460% faster in 1080p
- RX 6600 XT is 2333% faster in 1440p
- RX 6600 XT is 4100% faster in 4K
All in all, in popular games:
- there's a draw in 63 tests (100%)
Pros & cons summary
| Performance score | 1.64 | 36.86 |
| Recency | 22 July 2014 | 30 July 2021 |
| Maximum RAM amount | 1 GB/2 GB | 8 GB |
| Chip lithography | 28 nm | 7 nm |
| Power consumption (TDP) | 41 Watt | 160 Watt |
Quadro K420 has 290.2% lower power consumption.
RX 6600 XT, on the other hand, has a 2147.6% higher aggregate performance score, an age advantage of 7 years, a 700% higher maximum VRAM amount, and a 300% more advanced lithography process.
The Radeon RX 6600 XT is our recommended choice as it beats the Quadro K420 in performance tests.
Be aware that Quadro K420 is a workstation graphics card while Radeon RX 6600 XT is a desktop one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
