GeForce GTX 660 vs Radeon R9 390X
Aggregate performance score
We've compared Radeon R9 390X and GeForce GTX 660, covering specs and all relevant benchmarks.
R9 390X outperforms GTX 660 by a whopping 136% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 206 | 405 |
| Place by popularity | not in top-100 | 70 |
| Cost-effectiveness evaluation | 12.62 | 2.42 |
| Architecture | GCN (2011−2017) | Kepler (2012−2018) |
| GPU code name | Grenada XT | GK106 |
| Market segment | Desktop | Desktop |
| Design | reference | no data |
| Release date | 16 June 2015 (9 years ago) | 6 September 2012 (11 years ago) |
| Launch price (MSRP) | $429 | $229 |
| Current price | $19.99 (0x MSRP) | $172 (0.8x MSRP) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
R9 390X has 421% better value for money than GTX 660.
Detailed specifications
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 | 2816 | 960 |
| CUDA cores | no data | 960 |
| Core clock speed | no data | 980 MHz |
| Boost clock speed | 1050 MHz | 1033 MHz |
| Number of transistors | 6,200 million | 2,540 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 275 Watt | 140 Watt |
| Texture fill rate | 184.8 | 78.4 billion/sec |
| Floating-point performance | 5,914 gflops | 1,981 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).
| Bus support | PCIe 3.0 | PCI Express 3.0 |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 275 mm | 9.5" (24.1 cm) |
| Height | no data | 4.376" (11.1 cm) |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1 x 6-pin, 1 x 8-pin | One 6-pin |
| SLI options | no data | + |
| Bridgeless CrossFire | 1 | no data |
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 | GDDR5 |
| High bandwidth memory (HBM) | - | no data |
| Maximum RAM amount | 0 MB | 2 GB |
| Memory bus width | 512 Bit | 192-bit GDDR5 |
| Memory clock speed | 1050 MHz | 6.0 GB/s |
| Memory bandwidth | 384 GB/s | 144.2 GB/s |
| Shared memory | - | no data |
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 | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort |
| Multi monitor support | no data | 4 displays |
| Eyefinity | + | no data |
| Number of Eyefinity displays | 6 | no data |
| HDMI | + | + |
| HDCP | no data | + |
| Maximum VGA resolution | no data | 2048x1536 |
| DisplayPort support | + | no data |
| Audio input for HDMI | no data | Internal |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| AppAcceleration | - | no data |
| CrossFire | 1 | no data |
| Enduro | - | no data |
| FreeSync | 1 | no data |
| HD3D | - | no data |
| PowerTune | + | no data |
| TrueAudio | + | no data |
| ZeroCore | - | no data |
| VCE | + | no data |
| DDMA audio | + | no data |
| 3D Blu-Ray | no data | + |
| 3D Gaming | no data | + |
| 3D Vision | no data | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 12 | 12 (11_0) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.6 | 4.3 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | + | 1.1.126 |
| Mantle | + | no data |
| CUDA | no data | + |
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.
Radeon R9 390X outperforms GeForce GTX 660 by 136% based on our aggregate 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%
Radeon R9 390X outperforms GeForce GTX 660 by 136% 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%
Radeon R9 390X outperforms GeForce GTX 660 by 146% 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 | 86
+83%
| 47
−83%
|
| 4K | 47
+161%
| 18−20
−161%
|
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 90−95
+125%
|
40−45
−125%
|
Full HD
Medium Preset
| Assassin's Creed Odyssey | 110−120
+134%
|
45−50
−134%
|
| Assassin's Creed Valhalla | 95−100
+126%
|
40−45
−126%
|
| Battlefield 5 | 180−190
+125%
|
80−85
−125%
|
| Call of Duty: Modern Warfare | 110−120
+120%
|
50−55
−120%
|
| Cyberpunk 2077 | 90−95
+125%
|
40−45
−125%
|
| Far Cry 5 | 130−140
+132%
|
55−60
−132%
|
| Far Cry New Dawn | 150−160
+134%
|
60−65
−134%
|
| Forza Horizon 4 | 250−260
+136%
|
100−110
−136%
|
| Hitman 3 | 110−120
+124%
|
45−50
−124%
|
| Horizon Zero Dawn | 220−230
+127%
|
95−100
−127%
|
| Metro Exodus | 180−190
+125%
|
80−85
−125%
|
| Red Dead Redemption 2 | 150−160
+131%
|
65−70
−131%
|
| Shadow of the Tomb Raider | 190−200
+129%
|
80−85
−129%
|
| Watch Dogs: Legion | 160−170
+129%
|
70−75
−129%
|
Full HD
High Preset
| Assassin's Creed Odyssey | 110−120
+134%
|
45−50
−134%
|
| Assassin's Creed Valhalla | 95−100
+126%
|
40−45
−126%
|
| Battlefield 5 | 180−190
+125%
|
80−85
−125%
|
| Call of Duty: Modern Warfare | 110−120
+120%
|
50−55
−120%
|
| Cyberpunk 2077 | 90−95
+125%
|
40−45
−125%
|
| Far Cry 5 | 130−140
+132%
|
55−60
−132%
|
| Far Cry New Dawn | 150−160
+134%
|
60−65
−134%
|
| Forza Horizon 4 | 250−260
+136%
|
100−110
−136%
|
| Hitman 3 | 110−120
+124%
|
45−50
−124%
|
| Horizon Zero Dawn | 220−230
+127%
|
95−100
−127%
|
| Metro Exodus | 180−190
+125%
|
80−85
−125%
|
| Red Dead Redemption 2 | 150−160
+131%
|
65−70
−131%
|
| Shadow of the Tomb Raider | 190−200
+129%
|
80−85
−129%
|
| The Witcher 3: Wild Hunt | 170−180
+124%
|
76
−124%
|
| Watch Dogs: Legion | 160−170
+129%
|
70−75
−129%
|
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 110−120
+134%
|
45−50
−134%
|
| Assassin's Creed Valhalla | 95−100
+126%
|
40−45
−126%
|
| Call of Duty: Modern Warfare | 110−120
+120%
|
50−55
−120%
|
| Cyberpunk 2077 | 90−95
+125%
|
40−45
−125%
|
| Far Cry 5 | 130−140
+132%
|
55−60
−132%
|
| Forza Horizon 4 | 250−260
+136%
|
100−110
−136%
|
| Horizon Zero Dawn | 220−230
+127%
|
95−100
−127%
|
| Shadow of the Tomb Raider | 190−200
+129%
|
80−85
−129%
|
| The Witcher 3: Wild Hunt | 95−100
+132%
|
41
−132%
|
| Watch Dogs: Legion | 160−170
+129%
|
70−75
−129%
|
Full HD
Epic Preset
| Red Dead Redemption 2 | 150−160
+131%
|
65−70
−131%
|
1440p
High Preset
| Battlefield 5 | 100−105
+117%
|
45−50
−117%
|
| Far Cry New Dawn | 120−130
+131%
|
50−55
−131%
|
1440p
Ultra Preset
| Assassin's Creed Odyssey | 55−60
+120%
|
24−27
−120%
|
| Assassin's Creed Valhalla | 55−60
+129%
|
24−27
−129%
|
| Call of Duty: Modern Warfare | 75−80
+127%
|
30−35
−127%
|
| Cyberpunk 2077 | 35−40
+133%
|
14−16
−133%
|
| Far Cry 5 | 95−100
+126%
|
40−45
−126%
|
| Forza Horizon 4 | 110−120
+129%
|
45−50
−129%
|
| Hitman 3 | 65−70
+124%
|
27−30
−124%
|
| Horizon Zero Dawn | 110−120
+120%
|
50−55
−120%
|
| Metro Exodus | 100−105
+117%
|
45−50
−117%
|
| Shadow of the Tomb Raider | 120−130
+126%
|
50−55
−126%
|
| The Witcher 3: Wild Hunt | 70−75
+133%
|
30−33
−133%
|
| Watch Dogs: Legion | 40−45
+122%
|
18−20
−122%
|
1440p
Epic Preset
| Red Dead Redemption 2 | 95−100
+132%
|
40−45
−132%
|
4K
High Preset
| Battlefield 5 | 55−60
+129%
|
24−27
−129%
|
| Far Cry New Dawn | 40−45
+111%
|
18−20
−111%
|
| Hitman 3 | 40−45
+111%
|
18−20
−111%
|
| Horizon Zero Dawn | 65−70
+132%
|
27−30
−132%
|
| Shadow of the Tomb Raider | 40−45
+135%
|
16−18
−135%
|
| The Witcher 3: Wild Hunt | 65−70
+124%
|
29
−124%
|
4K
Ultra Preset
| Assassin's Creed Odyssey | 35−40
+133%
|
14−16
−133%
|
| Assassin's Creed Valhalla | 30−33
+131%
|
12−14
−131%
|
| Call of Duty: Modern Warfare | 30−33
+114%
|
14−16
−114%
|
| Cyberpunk 2077 | 14−16
+133%
|
6−7
−133%
|
| Far Cry 5 | 30−33
+131%
|
12−14
−131%
|
| Forza Horizon 4 | 80−85
+135%
|
30−35
−135%
|
| Horizon Zero Dawn | 65−70
+132%
|
27−30
−132%
|
| Metro Exodus | 55−60
+129%
|
24−27
−129%
|
| Watch Dogs: Legion | 24−27
+118%
|
10−12
−118%
|
4K
Epic Preset
| Red Dead Redemption 2 | 45−50
+114%
|
21−24
−114%
|
This is how R9 390X and GTX 660 compete in popular games:
- R9 390X is 83% faster in 1080p
- R9 390X is 161% faster in 4K
Pros & cons summary
| Performance score | 24.44 | 10.36 |
| Recency | 16 June 2015 | 6 September 2012 |
| Cost | $429 | $229 |
| Power consumption (TDP) | 275 Watt | 140 Watt |
The Radeon R9 390X is our recommended choice as it beats the GeForce GTX 660 in performance tests.
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.
