Radeon RX 6600 XT vs 620
Aggregated performance score
RX 6600 XT outperforms 620 by 1736% based on our aggregated benchmark results.
General info
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 810 | 79 |
| Place by popularity | not in top-100 | 51 |
| Value for money | 0.34 | 47.36 |
| Architecture | GCN 1.0 (2012−2020) | Navi / RDNA2 (2020−2022) |
| GPU code name | Polaris 24 | Navi 23 |
| Market segment | Laptop | Desktop |
| Release date | 12 August 2019 (4 years ago) | 30 July 2021 (2 years ago) |
| Launch price (MSRP) | no data | $379 |
| Current price | $67 | $283 (0.7x MSRP) |
Value for money
Performance to price ratio. The higher, the better.
RX 6600 XT has 13829% better value for money than Radeon 620.
Technical specs
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 384 | 2048 |
| Core clock speed | no data | 1968 MHz |
| Boost clock speed | 1024 MHz | 2589 MHz |
| Number of transistors | 1,550 million | 11,060 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | 50 Watt | 160 (TGP) Watt |
| Texture fill rate | 24.58 | 331.4 |
Size and compatibility
Information on Radeon 620 and Radeon RX 6600 XT compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | PCIe 3.0 x8 | PCIe 4.0 x8 |
| Length | no data | 190 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 1x 8-pin |
Memory
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 | DDR3, GDDR5 | GDDR6 |
| Maximum RAM amount | 4 GB | 8 GB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 2250 MHz | 16000 MHz |
| Memory bandwidth | 14.4 GB/s | 256.0 GB/s |
| Shared memory | - | - |
Video outputs and ports
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 | No outputs | 1x HDMI, 2x DisplayPort |
| HDMI | no data | + |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12.0 Ultimate (12_2) |
| Shader Model | 6.3 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2.131 | 1.2 |
Synthetic benchmark performance
Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
RX 6600 XT outperforms 620 by 1736% based on our aggregated benchmark results.
Passmark
This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.
Benchmark coverage: 25%
RX 6600 XT outperforms 620 by 1738% in Passmark.
3DMark Fire Strike Graphics
Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.
Benchmark coverage: 14%
RX 6600 XT outperforms 620 by 1538% in 3DMark Fire Strike Graphics.
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 | 7−8
−1786%
| 132
+1786%
|
| 1440p | 4−5
−1750%
| 74
+1750%
|
| 4K | 2−3
−1950%
| 41
+1950%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 5−6
−1480%
|
79
+1480%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 3−4
−2367%
|
70−75
+2367%
|
| Battlefield 5 | 4−5
−2900%
|
120−130
+2900%
|
| Call of Duty: Modern Warfare | 10−12
−964%
|
110−120
+964%
|
| Cyberpunk 2077 | 5−6
−1460%
|
78
+1460%
|
| Far Cry 5 | 2−3
−7450%
|
151
+7450%
|
| Far Cry New Dawn | 2−3
−6450%
|
131
+6450%
|
| Forza Horizon 4 | 5−6
−2460%
|
120−130
+2460%
|
| Hitman 3 | 4−5
−5425%
|
221
+5425%
|
| Horizon Zero Dawn | 3−4
−4467%
|
137
+4467%
|
| Red Dead Redemption 2 | 5−6
−1280%
|
65−70
+1280%
|
| Shadow of the Tomb Raider | 8−9
−1975%
|
166
+1975%
|
| Watch Dogs: Legion | 0−1 | 120 |
Full HD
High Preset
| Assassin's Creed Odyssey | 3−4
−2367%
|
70−75
+2367%
|
| Battlefield 5 | 4−5
−2900%
|
120−130
+2900%
|
| Call of Duty: Modern Warfare | 10−12
−964%
|
110−120
+964%
|
| Cyberpunk 2077 | 5−6
−1420%
|
76
+1420%
|
| Far Cry 5 | 2−3
−6950%
|
141
+6950%
|
| Far Cry New Dawn | 2−3
−6250%
|
127
+6250%
|
| Forza Horizon 4 | 5−6
−2460%
|
120−130
+2460%
|
| Hitman 3 | 4−5
−4475%
|
183
+4475%
|
| Horizon Zero Dawn | 3−4
−3533%
|
109
+3533%
|
| Metro Exodus | 3−4
−3067%
|
95
+3067%
|
| Red Dead Redemption 2 | 5−6
−1280%
|
65−70
+1280%
|
| Shadow of the Tomb Raider | 8−9
−1675%
|
142
+1675%
|
| The Witcher 3: Wild Hunt | 6−7
−2833%
|
176
+2833%
|
| Watch Dogs: Legion | 0−1 | 104 |
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 3−4
−2367%
|
70−75
+2367%
|
| Battlefield 5 | 4−5
−2900%
|
120−130
+2900%
|
| Cyberpunk 2077 | 5−6
−1280%
|
69
+1280%
|
| Far Cry 5 | 2−3
−6550%
|
133
+6550%
|
| Far Cry New Dawn | 2−3
−5500%
|
112
+5500%
|
| Forza Horizon 4 | 5−6
−2460%
|
120−130
+2460%
|
| The Witcher 3: Wild Hunt | 6−7
−1550%
|
99
+1550%
|
| Watch Dogs: Legion | 0−1 | 61 |
1440p
High Preset
| Call of Duty: Modern Warfare | 4−5
−1700%
|
70−75
+1700%
|
| Hitman 3 | 5−6
−2140%
|
112
+2140%
|
| Horizon Zero Dawn | 9−10
−744%
|
76
+744%
|
| Metro Exodus | 1−2
−5500%
|
56
+5500%
|
| Red Dead Redemption 2 | 1−2
−3400%
|
35−40
+3400%
|
| Shadow of the Tomb Raider | 6−7
−1300%
|
84
+1300%
|
1440p
Ultra Preset
| Cyberpunk 2077 | 1−2
−3900%
|
40
+3900%
|
| Far Cry 5 | 4−5
−2525%
|
105
+2525%
|
| The Witcher 3: Wild Hunt | 2−3
−3100%
|
60−65
+3100%
|
4K
High Preset
| Call of Duty: Modern Warfare | 2−3
−1900%
|
40−45
+1900%
|
| Hitman 3 | 2−3
−2750%
|
57
+2750%
|
| Horizon Zero Dawn | 7−8
−186%
|
20
+186%
|
| Red Dead Redemption 2 | 1−2
−2200%
|
21−24
+2200%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 1−2
−2900%
|
30−33
+2900%
|
| Assassin's Creed Valhalla | 1−2
−2700%
|
28
+2700%
|
| Far Cry 5 | 3−4
−1600%
|
51
+1600%
|
| Far Cry New Dawn | 6−7
−783%
|
53
+783%
|
This is how Radeon 620 and RX 6600 XT compete in popular games:
- RX 6600 XT is 1786% faster than Radeon 620 in 1080p
- RX 6600 XT is 1750% faster than Radeon 620 in 1440p
- RX 6600 XT is 1950% faster than Radeon 620 in 4K
Here's the range of performance differences observed across popular games:
- in Far Cry 5, with 1080p resolution and the Medium Preset, the RX 6600 XT is 7450% faster than the Radeon 620.
All in all, in popular games:
- Without exception, RX 6600 XT surpassed Radeon 620 in all 49 of our tests.
Advantages and disadvantages
| Performance score | 2.32 | 42.59 |
| Recency | 12 August 2019 | 30 July 2021 |
| Maximum RAM amount | 4 GB | 8 GB |
| Chip lithography | 28 nm | 7 nm |
| Power consumption (TDP) | 50 Watt | 160 Watt |
The Radeon RX 6600 XT is our recommended choice as it beats the Radeon 620 in performance tests.
Be aware that Radeon 620 is a notebook card while Radeon RX 6600 XT is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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