Radeon RX 6400 vs RX 6600M
Aggregate performance score
We've compared Radeon RX 6600M with Radeon RX 6400, including specs and performance data.
RX 6600M outperforms RX 6400 by an impressive 81% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 170 | 322 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 46.02 |
| Power efficiency | 25.36 | 26.39 |
| Architecture | RDNA 2.0 (2020−2025) | RDNA 2.0 (2020−2025) |
| GPU code name | Navi 23 | Navi 24 |
| Market segment | Laptop | Desktop |
| Release date | 31 May 2021 (4 years ago) | 19 January 2022 (3 years ago) |
| Launch price (MSRP) | no data | $159 |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
Performance to price scatter graph
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 | 1792 | 768 |
| Core clock speed | 2068 MHz | 1923 MHz |
| Boost clock speed | 2416 MHz | 2321 MHz |
| Number of transistors | 11,060 million | 5,400 million |
| Manufacturing process technology | 7 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 53 Watt |
| Texture fill rate | 270.6 | 111.4 |
| Floating-point processing power | 8.659 TFLOPS | 3.565 TFLOPS |
| ROPs | 64 | 32 |
| TMUs | 112 | 48 |
| Ray Tracing Cores | 28 | 12 |
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).
| Laptop size | medium sized | no data |
| Interface | PCIe 4.0 x8 | PCIe 4.0 x4 |
| Width | no data | 1-slot |
| Supplementary power connectors | None | None |
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 | GDDR6 | GDDR6 |
| Maximum RAM amount | 8 GB | 4 GB |
| Memory bus width | 128 Bit | 64 Bit |
| Memory clock speed | 1750 MHz | 2000 MHz |
| Memory bandwidth | 224.0 GB/s | 128.0 GB/s |
| Shared memory | - | - |
| Resizable BAR | + | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 1x HDMI 2.1, 1x DisplayPort 1.4a |
| HDMI | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.5 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.2 |
| Vulkan | 1.3 | 1.3 |
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 | 100
+81.8%
| 55−60
−81.8%
|
| 1440p | 55
+83.3%
| 30−35
−83.3%
|
| 4K | 30
+87.5%
| 16−18
−87.5%
|
Cost per frame, $
| 1080p | no data | 2.89 |
| 1440p | no data | 5.30 |
| 4K | no data | 9.94 |
FPS performance in popular games
Full HD
Low Preset
| Counter-Strike 2 | 180−190
+88%
|
100−105
−88%
|
| Cyberpunk 2077 | 107
+94.5%
|
55−60
−94.5%
|
| Hogwarts Legacy | 100
+81.8%
|
55−60
−81.8%
|
Full HD
Medium Preset
| Battlefield 5 | 120−130
+86.2%
|
65−70
−86.2%
|
| Counter-Strike 2 | 180−190
+88%
|
100−105
−88%
|
| Cyberpunk 2077 | 83
+84.4%
|
45−50
−84.4%
|
| Far Cry 5 | 116
+93.3%
|
60−65
−93.3%
|
| Fortnite | 150−160
+87.5%
|
80−85
−87.5%
|
| Forza Horizon 4 | 202
+83.6%
|
110−120
−83.6%
|
| Forza Horizon 5 | 121
+86.2%
|
65−70
−86.2%
|
| Hogwarts Legacy | 86
+91.1%
|
45−50
−91.1%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 130−140
+92.9%
|
70−75
−92.9%
|
| Valorant | 200−210
+87.3%
|
110−120
−87.3%
|
Full HD
High Preset
| Battlefield 5 | 120−130
+86.2%
|
65−70
−86.2%
|
| Counter-Strike 2 | 180−190
+88%
|
100−105
−88%
|
| Counter-Strike: Global Offensive | 270−280
+84.7%
|
150−160
−84.7%
|
| Cyberpunk 2077 | 69
+97.1%
|
35−40
−97.1%
|
| Dota 2 | 114
+90%
|
60−65
−90%
|
| Far Cry 5 | 108
+96.4%
|
55−60
−96.4%
|
| Fortnite | 150−160
+87.5%
|
80−85
−87.5%
|
| Forza Horizon 4 | 199
+99%
|
100−105
−99%
|
| Forza Horizon 5 | 114
+90%
|
60−65
−90%
|
| Grand Theft Auto V | 116
+93.3%
|
60−65
−93.3%
|
| Hogwarts Legacy | 68
+94.3%
|
35−40
−94.3%
|
| Metro Exodus | 80
+100%
|
40−45
−100%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 130−140
+92.9%
|
70−75
−92.9%
|
| The Witcher 3: Wild Hunt | 142
+89.3%
|
75−80
−89.3%
|
| Valorant | 200−210
+87.3%
|
110−120
−87.3%
|
Full HD
Ultra Preset
| Battlefield 5 | 120−130
+86.2%
|
65−70
−86.2%
|
| Cyberpunk 2077 | 61
+103%
|
30−33
−103%
|
| Dota 2 | 104
+89.1%
|
55−60
−89.1%
|
| Far Cry 5 | 101
+83.6%
|
55−60
−83.6%
|
| Forza Horizon 4 | 168
+86.7%
|
90−95
−86.7%
|
| Hogwarts Legacy | 52
+92.6%
|
27−30
−92.6%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 130−140
+92.9%
|
70−75
−92.9%
|
| The Witcher 3: Wild Hunt | 85
+88.9%
|
45−50
−88.9%
|
| Valorant | 144
+92%
|
75−80
−92%
|
Full HD
Epic Preset
| Fortnite | 150−160
+87.5%
|
80−85
−87.5%
|
1440p
High Preset
| Counter-Strike 2 | 80−85
+100%
|
40−45
−100%
|
| Counter-Strike: Global Offensive | 230−240
+95.8%
|
120−130
−95.8%
|
| Grand Theft Auto V | 61
+103%
|
30−33
−103%
|
| Metro Exodus | 47
+95.8%
|
24−27
−95.8%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+84.2%
|
95−100
−84.2%
|
| Valorant | 240−250
+84.6%
|
130−140
−84.6%
|
1440p
Ultra Preset
| Battlefield 5 | 85−90
+97.8%
|
45−50
−97.8%
|
| Cyberpunk 2077 | 39
+85.7%
|
21−24
−85.7%
|
| Far Cry 5 | 90
+100%
|
45−50
−100%
|
| Forza Horizon 4 | 128
+82.9%
|
70−75
−82.9%
|
| Hogwarts Legacy | 36
+100%
|
18−20
−100%
|
| The Witcher 3: Wild Hunt | 62
+107%
|
30−33
−107%
|
1440p
Epic Preset
| Fortnite | 85−90
+93.3%
|
45−50
−93.3%
|
4K
High Preset
| Counter-Strike 2 | 35−40
+106%
|
18−20
−106%
|
| Grand Theft Auto V | 58
+93.3%
|
30−33
−93.3%
|
| Hogwarts Legacy | 21−24
+110%
|
10−11
−110%
|
| Metro Exodus | 28
+100%
|
14−16
−100%
|
| The Witcher 3: Wild Hunt | 44
+83.3%
|
24−27
−83.3%
|
| Valorant | 200−210
+86.4%
|
110−120
−86.4%
|
4K
Ultra Preset
| Battlefield 5 | 50−55
+96.3%
|
27−30
−96.3%
|
| Counter-Strike 2 | 35−40
+106%
|
18−20
−106%
|
| Cyberpunk 2077 | 19
+90%
|
10−11
−90%
|
| Dota 2 | 80
+100%
|
40−45
−100%
|
| Far Cry 5 | 44
+83.3%
|
24−27
−83.3%
|
| Forza Horizon 4 | 74
+85%
|
40−45
−85%
|
| Hogwarts Legacy | 19
+90%
|
10−11
−90%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 40−45
+100%
|
21−24
−100%
|
4K
Epic Preset
| Fortnite | 40−45
+95.2%
|
21−24
−95.2%
|
This is how RX 6600M and RX 6400 compete in popular games:
- RX 6600M is 82% faster in 1080p
- RX 6600M is 83% faster in 1440p
- RX 6600M is 88% faster in 4K
Pros & cons summary
| Performance score | 33.25 | 18.34 |
| Recency | 31 May 2021 | 19 January 2022 |
| Maximum RAM amount | 8 GB | 4 GB |
| Chip lithography | 7 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 53 Watt |
RX 6600M has a 81.3% higher aggregate performance score, and a 100% higher maximum VRAM amount.
RX 6400, on the other hand, has an age advantage of 7 months, a 16.7% more advanced lithography process, and 88.7% lower power consumption.
The Radeon RX 6600M is our recommended choice as it beats the Radeon RX 6400 in performance tests.
Be aware that Radeon RX 6600M is a notebook graphics card while Radeon RX 6400 is a desktop one.
Other comparisons
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