Radeon RX 6600M vs GeForce GTX 660
Aggregate performance score
We've compared GeForce GTX 660 with Radeon RX 6600M, including specs and performance data.
RX 6600M outperforms GTX 660 by a whopping 247% 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 | 452 | 145 |
| Place by popularity | 73 | not in top-100 |
| Cost-effectiveness evaluation | 2.98 | no data |
| Power efficiency | 5.10 | 24.73 |
| Architecture | Kepler (2012−2018) | RDNA 2.0 (2020−2024) |
| GPU code name | GK106 | Navi 23 |
| Market segment | Desktop | Laptop |
| Release date | 6 September 2012 (12 years ago) | 31 May 2021 (3 years ago) |
| Launch price (MSRP) | $229 | no data |
Cost-effectiveness evaluation
The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.
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 | 960 | 1792 |
| Core clock speed | 980 MHz | 2068 MHz |
| Boost clock speed | 1033 MHz | 2416 MHz |
| Number of transistors | 2,540 million | 11,060 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | 140 Watt | 100 Watt |
| Texture fill rate | 82.56 | 270.6 |
| Floating-point processing power | 1.981 TFLOPS | 8.659 TFLOPS |
| ROPs | 24 | 64 |
| TMUs | 80 | 112 |
| Ray Tracing Cores | no data | 28 |
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 | PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |
| Length | 241 mm | no data |
| Height | 4.376" (11.1 cm) | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin | None |
| SLI options | + | - |
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 |
| Maximum RAM amount | 2 GB | 8 GB |
| Memory bus width | 192-bit GDDR5 | 128 Bit |
| Memory clock speed | 6.0 GB/s | 1750 MHz |
| Memory bandwidth | 144.2 GB/s | 224.0 GB/s |
| Shared memory | - | - |
| 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 | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort | No outputs |
| Multi monitor support | 4 displays | no data |
| HDMI | + | - |
| HDCP | + | - |
| Maximum VGA resolution | 2048x1536 | no data |
| Audio input for HDMI | Internal | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Blu-Ray | + | - |
| 3D Gaming | + | - |
| 3D Vision | + | - |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.5 |
| OpenGL | 4.3 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.1.126 | 1.3 |
| CUDA | + | - |
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.
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.
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 | 47
−113%
| 100
+113%
|
| 1440p | 14−16
−293%
| 55
+293%
|
| 4K | 8−9
−275%
| 30
+275%
|
Cost per frame, $
| 1080p | 4.87 | no data |
| 1440p | 16.36 | no data |
| 4K | 28.63 | no data |
FPS performance in popular games
Full HD
Low Preset
| Counter-Strike 2 | 190−200
+0%
|
190−200
+0%
|
| Cyberpunk 2077 | 107
+0%
|
107
+0%
|
| Hogwarts Legacy | 100
+0%
|
100
+0%
|
Full HD
Medium Preset
| Battlefield 5 | 120−130
+0%
|
120−130
+0%
|
| Counter-Strike 2 | 190−200
+0%
|
190−200
+0%
|
| Cyberpunk 2077 | 83
+0%
|
83
+0%
|
| Far Cry 5 | 116
+0%
|
116
+0%
|
| Fortnite | 150−160
+0%
|
150−160
+0%
|
| Forza Horizon 4 | 202
+0%
|
202
+0%
|
| Forza Horizon 5 | 121
+0%
|
121
+0%
|
| Hogwarts Legacy | 86
+0%
|
86
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 130−140
+0%
|
130−140
+0%
|
| Valorant | 200−210
+0%
|
200−210
+0%
|
Full HD
High Preset
| Battlefield 5 | 120−130
+0%
|
120−130
+0%
|
| Counter-Strike 2 | 190−200
+0%
|
190−200
+0%
|
| Counter-Strike: Global Offensive | 270−280
+0%
|
270−280
+0%
|
| Cyberpunk 2077 | 69
+0%
|
69
+0%
|
| Dota 2 | 114
+0%
|
114
+0%
|
| Far Cry 5 | 108
+0%
|
108
+0%
|
| Fortnite | 150−160
+0%
|
150−160
+0%
|
| Forza Horizon 4 | 199
+0%
|
199
+0%
|
| Forza Horizon 5 | 114
+0%
|
114
+0%
|
| Grand Theft Auto V | 116
+0%
|
116
+0%
|
| Hogwarts Legacy | 68
+0%
|
68
+0%
|
| Metro Exodus | 80
+0%
|
80
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 130−140
+0%
|
130−140
+0%
|
| The Witcher 3: Wild Hunt | 142
+0%
|
142
+0%
|
| Valorant | 200−210
+0%
|
200−210
+0%
|
Full HD
Ultra Preset
| Battlefield 5 | 120−130
+0%
|
120−130
+0%
|
| Cyberpunk 2077 | 61
+0%
|
61
+0%
|
| Dota 2 | 104
+0%
|
104
+0%
|
| Far Cry 5 | 101
+0%
|
101
+0%
|
| Forza Horizon 4 | 168
+0%
|
168
+0%
|
| Hogwarts Legacy | 52
+0%
|
52
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 130−140
+0%
|
130−140
+0%
|
| The Witcher 3: Wild Hunt | 85
+0%
|
85
+0%
|
| Valorant | 144
+0%
|
144
+0%
|
Full HD
Epic Preset
| Fortnite | 150−160
+0%
|
150−160
+0%
|
1440p
High Preset
| Counter-Strike 2 | 80−85
+0%
|
80−85
+0%
|
| Counter-Strike: Global Offensive | 230−240
+0%
|
230−240
+0%
|
| Grand Theft Auto V | 61
+0%
|
61
+0%
|
| Metro Exodus | 47
+0%
|
47
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180
+0%
|
170−180
+0%
|
| Valorant | 240−250
+0%
|
240−250
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 85−90
+0%
|
85−90
+0%
|
| Cyberpunk 2077 | 39
+0%
|
39
+0%
|
| Far Cry 5 | 90
+0%
|
90
+0%
|
| Forza Horizon 4 | 128
+0%
|
128
+0%
|
| Hogwarts Legacy | 36
+0%
|
36
+0%
|
| The Witcher 3: Wild Hunt | 62
+0%
|
62
+0%
|
1440p
Epic Preset
| Fortnite | 85−90
+0%
|
85−90
+0%
|
4K
High Preset
| Counter-Strike 2 | 35−40
+0%
|
35−40
+0%
|
| Grand Theft Auto V | 58
+0%
|
58
+0%
|
| Hogwarts Legacy | 21−24
+0%
|
21−24
+0%
|
| Metro Exodus | 28
+0%
|
28
+0%
|
| The Witcher 3: Wild Hunt | 44
+0%
|
44
+0%
|
| Valorant | 200−210
+0%
|
200−210
+0%
|
4K
Ultra Preset
| Battlefield 5 | 50−55
+0%
|
50−55
+0%
|
| Counter-Strike 2 | 35−40
+0%
|
35−40
+0%
|
| Cyberpunk 2077 | 19
+0%
|
19
+0%
|
| Dota 2 | 80
+0%
|
80
+0%
|
| Far Cry 5 | 44
+0%
|
44
+0%
|
| Forza Horizon 4 | 74
+0%
|
74
+0%
|
| Hogwarts Legacy | 19
+0%
|
19
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 40−45
+0%
|
40−45
+0%
|
4K
Epic Preset
| Fortnite | 40−45
+0%
|
40−45
+0%
|
This is how GTX 660 and RX 6600M compete in popular games:
- RX 6600M is 113% faster in 1080p
- RX 6600M is 293% faster in 1440p
- RX 6600M is 275% faster in 4K
All in all, in popular games:
- there's a draw in 66 tests (100%)
Pros & cons summary
| Performance score | 8.99 | 31.16 |
| Recency | 6 September 2012 | 31 May 2021 |
| Maximum RAM amount | 2 GB | 8 GB |
| Chip lithography | 28 nm | 7 nm |
| Power consumption (TDP) | 140 Watt | 100 Watt |
RX 6600M has a 246.6% higher aggregate performance score, an age advantage of 8 years, a 300% higher maximum VRAM amount, a 300% more advanced lithography process, and 40% lower power consumption.
The Radeon RX 6600M is our recommended choice as it beats the GeForce GTX 660 in performance tests.
Be aware that GeForce GTX 660 is a desktop card while Radeon RX 6600M is a notebook one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
