Radeon RX 6600S vs R9 390
Aggregate performance score
We've compared Radeon R9 390 with Radeon RX 6600S, including specs and performance data.
RX 6600S outperforms R9 390 by an impressive 54% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 238 | 141 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 11.68 | no data |
| Architecture | GCN 2.0 (2013−2017) | RDNA 2 (2020−2023) |
| GPU code name | Grenada | Navi 23 |
| Market segment | Desktop | Laptop |
| Design | reference | no data |
| Release date | 18 June 2015 (9 years ago) | 4 January 2022 (2 years ago) |
| Launch price (MSRP) | $329 | no data |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
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 | 2560 | 1792 |
| Boost clock speed | 1000 MHz | 1881 MHz |
| Number of transistors | 6,200 million | 11,060 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | 275 Watt | 80 Watt |
| Texture fill rate | 160.0 | 224.0 |
| Floating-point processing power | 5.12 gflops | 7.168 gflops |
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 | no data | medium sized |
| Bus support | PCIe 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Length | 275 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1 x 6-pin, 1 x 8-pin | None |
| Bridgeless CrossFire | + | - |
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 | GDDR5 | GDDR6 |
| High bandwidth memory (HBM) | - | no data |
| Maximum RAM amount | 0 MB | 4 GB |
| Memory bus width | 512 Bit | 128 Bit |
| Memory clock speed | 1000 MHz | 16000 MHz |
| Memory bandwidth | 384 GB/s | 224.0 GB/s |
| Shared memory | - | - |
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 | 2x DVI, 1x HDMI, 1x DisplayPort | No outputs |
| Eyefinity | + | - |
| Number of Eyefinity displays | 6 | no data |
| HDMI | + | - |
| DisplayPort support | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| CrossFire | + | - |
| FreeSync | + | - |
| PowerTune | + | - |
| TrueAudio | + | - |
| VCE | + | - |
| DDMA audio | + | no data |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 12 | 12.0 Ultimate (12_2) |
| Shader Model | 6.3 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | + | 1.2 |
| Mantle | + | - |
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. 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.
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.
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 60−65
+0%
|
60−65
+0%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 75−80
+0%
|
75−80
+0%
|
| Assassin's Creed Valhalla | 60−65
+0%
|
60−65
+0%
|
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Call of Duty: Modern Warfare | 70−75
+0%
|
70−75
+0%
|
| Cyberpunk 2077 | 60−65
+0%
|
60−65
+0%
|
| Far Cry 5 | 75−80
+0%
|
75−80
+0%
|
| Far Cry New Dawn | 85−90
+0%
|
85−90
+0%
|
| Forza Horizon 4 | 180−190
+0%
|
180−190
+0%
|
| Hitman 3 | 75−80
+0%
|
75−80
+0%
|
| Horizon Zero Dawn | 150−160
+0%
|
150−160
+0%
|
| Metro Exodus | 110−120
+0%
|
110−120
+0%
|
| Red Dead Redemption 2 | 85−90
+0%
|
85−90
+0%
|
| Shadow of the Tomb Raider | 120−130
+0%
|
120−130
+0%
|
| Watch Dogs: Legion | 120−130
+0%
|
120−130
+0%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 75−80
+0%
|
75−80
+0%
|
| Assassin's Creed Valhalla | 60−65
+0%
|
60−65
+0%
|
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Call of Duty: Modern Warfare | 70−75
+0%
|
70−75
+0%
|
| Cyberpunk 2077 | 60−65
+0%
|
60−65
+0%
|
| Far Cry 5 | 75−80
+0%
|
75−80
+0%
|
| Far Cry New Dawn | 85−90
+0%
|
85−90
+0%
|
| Forza Horizon 4 | 180−190
+0%
|
180−190
+0%
|
| Hitman 3 | 75−80
+0%
|
75−80
+0%
|
| Horizon Zero Dawn | 150−160
+0%
|
150−160
+0%
|
| Metro Exodus | 110−120
+0%
|
110−120
+0%
|
| Red Dead Redemption 2 | 85−90
+0%
|
85−90
+0%
|
| Shadow of the Tomb Raider | 120−130
+0%
|
120−130
+0%
|
| The Witcher 3: Wild Hunt | 70−75
+0%
|
70−75
+0%
|
| Watch Dogs: Legion | 120−130
+0%
|
120−130
+0%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 75−80
+0%
|
75−80
+0%
|
| Assassin's Creed Valhalla | 60−65
+0%
|
60−65
+0%
|
| Call of Duty: Modern Warfare | 70−75
+0%
|
70−75
+0%
|
| Cyberpunk 2077 | 60−65
+0%
|
60−65
+0%
|
| Far Cry 5 | 75−80
+0%
|
75−80
+0%
|
| Forza Horizon 4 | 180−190
+0%
|
180−190
+0%
|
| Hitman 3 | 75−80
+0%
|
75−80
+0%
|
| Horizon Zero Dawn | 150−160
+0%
|
150−160
+0%
|
| Shadow of the Tomb Raider | 120−130
+0%
|
120−130
+0%
|
| The Witcher 3: Wild Hunt | 70−75
+0%
|
70−75
+0%
|
| Watch Dogs: Legion | 120−130
+0%
|
120−130
+0%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 85−90
+0%
|
85−90
+0%
|
1440p
High Preset
| Battlefield 5 | 65−70
+0%
|
65−70
+0%
|
| Far Cry New Dawn | 50−55
+0%
|
50−55
+0%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 35−40
+0%
|
35−40
+0%
|
| Assassin's Creed Valhalla | 35−40
+0%
|
35−40
+0%
|
| Call of Duty: Modern Warfare | 40−45
+0%
|
40−45
+0%
|
| Cyberpunk 2077 | 27−30
+0%
|
27−30
+0%
|
| Far Cry 5 | 40−45
+0%
|
40−45
+0%
|
| Forza Horizon 4 | 200−210
+0%
|
200−210
+0%
|
| Hitman 3 | 45−50
+0%
|
45−50
+0%
|
| Horizon Zero Dawn | 75−80
+0%
|
75−80
+0%
|
| Metro Exodus | 65−70
+0%
|
65−70
+0%
|
| Shadow of the Tomb Raider | 80−85
+0%
|
80−85
+0%
|
| The Witcher 3: Wild Hunt | 45−50
+0%
|
45−50
+0%
|
| Watch Dogs: Legion | 180−190
+0%
|
180−190
+0%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 60−65
+0%
|
60−65
+0%
|
4K
High Preset
| Battlefield 5 | 35−40
+0%
|
35−40
+0%
|
| Far Cry New Dawn | 27−30
+0%
|
27−30
+0%
|
| Hitman 3 | 27−30
+0%
|
27−30
+0%
|
| Horizon Zero Dawn | 170−180
+0%
|
170−180
+0%
|
| Metro Exodus | 40−45
+0%
|
40−45
+0%
|
| The Witcher 3: Wild Hunt | 40−45
+0%
|
40−45
+0%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 21−24
+0%
|
21−24
+0%
|
| Assassin's Creed Valhalla | 21−24
+0%
|
21−24
+0%
|
| Call of Duty: Modern Warfare | 21−24
+0%
|
21−24
+0%
|
| Cyberpunk 2077 | 10−12
+0%
|
10−12
+0%
|
| Far Cry 5 | 20−22
+0%
|
20−22
+0%
|
| Forza Horizon 4 | 45−50
+0%
|
45−50
+0%
|
| Shadow of the Tomb Raider | 45−50
+0%
|
45−50
+0%
|
| Watch Dogs: Legion | 16−18
+0%
|
16−18
+0%
|
4K
Epic Preset
| Red Dead Redemption 2 | 30−35
+0%
|
30−35
+0%
|
All in all, in popular games:
- there's a draw in 72 tests (100%)
Pros & cons summary
| Performance score | 23.10 | 35.46 |
| Recency | 18 June 2015 | 4 January 2022 |
| Chip lithography | 28 nm | 7 nm |
| Power consumption (TDP) | 275 Watt | 80 Watt |
RX 6600S has a 53.5% higher aggregate performance score, an age advantage of 6 years, a 300% more advanced lithography process, and 243.8% lower power consumption.
The Radeon RX 6600S is our recommended choice as it beats the Radeon R9 390 in performance tests.
Be aware that Radeon R9 390 is a desktop card while Radeon RX 6600S is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
