Radeon HD 6990M Crossfire vs GeForce GTX 660
Aggregate performance score
We've compared GeForce GTX 660 with Radeon HD 6990M Crossfire, including specs and performance data.
GTX 660 outperforms HD 6990M Crossfire by a minimal 3% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 439 | 452 |
| Place by popularity | 81 | not in top-100 |
| Cost-effectiveness evaluation | 3.44 | no data |
| Power efficiency | 5.14 | no data |
| Architecture | Kepler (2012−2018) | Terascale 2 (2009−2015) |
| GPU code name | GK106 | Blackcomb XTX |
| Market segment | Desktop | Laptop |
| Release date | 6 September 2012 (12 years ago) | 12 July 2011 (13 years ago) |
| Launch price (MSRP) | $229 | 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 | 960 | 2240 |
| Core clock speed | 980 MHz | 715 MHz |
| Boost clock speed | 1033 MHz | no data |
| Number of transistors | 2,540 million | 2x1700 Million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 140 Watt | no data |
| Texture fill rate | 82.56 | no data |
| Floating-point processing power | 1.981 TFLOPS | no data |
| ROPs | 24 | no data |
| TMUs | 80 | no data |
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 | large |
| Bus support | PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | no data |
| Length | 241 mm | no data |
| Height | 4.376" (11.1 cm) | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin | no data |
| 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 | GDDR5 |
| Maximum RAM amount | 2 GB | 2x2 GB |
| Memory bus width | 192-bit GDDR5 | 256 Bit |
| Memory clock speed | 6.0 GB/s | 900 MHz |
| Memory bandwidth | 144.2 GB/s | no data |
| 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 | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort | no data |
| 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 compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 11 |
| Shader Model | 5.1 | no data |
| OpenGL | 4.3 | no data |
| OpenCL | 1.2 | no data |
| Vulkan | 1.1.126 | - |
| CUDA | + | - |
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:
| 900p | 100−110
+1%
| 99
−1%
|
| Full HD | 47
−126%
| 106
+126%
|
Cost per frame, $
| 1080p | 4.87 | no data |
FPS performance in popular games
Full HD
Low Preset
| Counter-Strike 2 | 16−18
+0%
|
16−18
+0%
|
| Cyberpunk 2077 | 20−22
+0%
|
20−22
+0%
|
| Elden Ring | 30−33
+0%
|
30−33
+0%
|
Full HD
Medium Preset
| Battlefield 5 | 30−35
+0%
|
30−35
+0%
|
| Counter-Strike 2 | 16−18
+0%
|
16−18
+0%
|
| Cyberpunk 2077 | 20−22
+0%
|
20−22
+0%
|
| Forza Horizon 4 | 40−45
+0%
|
40−45
+0%
|
| Metro Exodus | 27−30
+0%
|
27−30
+0%
|
| Red Dead Redemption 2 | 27−30
+0%
|
27−30
+0%
|
| Valorant | 35−40
+0%
|
35−40
+0%
|
Full HD
High Preset
| Battlefield 5 | 30−35
+0%
|
30−35
+0%
|
| Counter-Strike 2 | 16−18
+0%
|
16−18
+0%
|
| Cyberpunk 2077 | 20−22
+0%
|
20−22
+0%
|
| Dota 2 | 35−40
+0%
|
35−40
+0%
|
| Elden Ring | 30−33
+0%
|
30−33
+0%
|
| Far Cry 5 | 40−45
+0%
|
40−45
+0%
|
| Fortnite | 55−60
+0%
|
55−60
+0%
|
| Forza Horizon 4 | 40−45
+0%
|
40−45
+0%
|
| Grand Theft Auto V | 35−40
+0%
|
35−40
+0%
|
| Metro Exodus | 27−30
+0%
|
27−30
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 75−80
+0%
|
75−80
+0%
|
| Red Dead Redemption 2 | 27−30
+0%
|
27−30
+0%
|
| The Witcher 3: Wild Hunt | 30−33
+0%
|
30−33
+0%
|
| Valorant | 35−40
+0%
|
35−40
+0%
|
| World of Tanks | 140−150
+0%
|
140−150
+0%
|
Full HD
Ultra Preset
| Battlefield 5 | 30−35
+0%
|
30−35
+0%
|
| Counter-Strike 2 | 16−18
+0%
|
16−18
+0%
|
| Cyberpunk 2077 | 20−22
+0%
|
20−22
+0%
|
| Dota 2 | 35−40
+0%
|
35−40
+0%
|
| Far Cry 5 | 40−45
+0%
|
40−45
+0%
|
| Forza Horizon 4 | 40−45
+0%
|
40−45
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 75−80
+0%
|
75−80
+0%
|
| Valorant | 35−40
+0%
|
35−40
+0%
|
1440p
High Preset
| Dota 2 | 12−14
+0%
|
12−14
+0%
|
| Elden Ring | 14−16
+0%
|
14−16
+0%
|
| Grand Theft Auto V | 14−16
+0%
|
14−16
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 45−50
+0%
|
45−50
+0%
|
| Red Dead Redemption 2 | 8−9
+0%
|
8−9
+0%
|
| World of Tanks | 70−75
+0%
|
70−75
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 18−20
+0%
|
18−20
+0%
|
| Counter-Strike 2 | 30−35
+0%
|
30−35
+0%
|
| Cyberpunk 2077 | 8−9
+0%
|
8−9
+0%
|
| Far Cry 5 | 21−24
+0%
|
21−24
+0%
|
| Forza Horizon 4 | 21−24
+0%
|
21−24
+0%
|
| Metro Exodus | 18−20
+0%
|
18−20
+0%
|
| The Witcher 3: Wild Hunt | 12−14
+0%
|
12−14
+0%
|
| Valorant | 24−27
+0%
|
24−27
+0%
|
4K
High Preset
| Counter-Strike 2 | 4−5
+0%
|
4−5
+0%
|
| Dota 2 | 20−22
+0%
|
20−22
+0%
|
| Elden Ring | 6−7
+0%
|
6−7
+0%
|
| Grand Theft Auto V | 20−22
+0%
|
20−22
+0%
|
| Metro Exodus | 5−6
+0%
|
5−6
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 27−30
+0%
|
27−30
+0%
|
| Red Dead Redemption 2 | 6−7
+0%
|
6−7
+0%
|
| The Witcher 3: Wild Hunt | 20−22
+0%
|
20−22
+0%
|
4K
Ultra Preset
| Battlefield 5 | 9−10
+0%
|
9−10
+0%
|
| Counter-Strike 2 | 4−5
+0%
|
4−5
+0%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Dota 2 | 20−22
+0%
|
20−22
+0%
|
| Far Cry 5 | 12−14
+0%
|
12−14
+0%
|
| Fortnite | 10−12
+0%
|
10−12
+0%
|
| Forza Horizon 4 | 12−14
+0%
|
12−14
+0%
|
| Valorant | 10−11
+0%
|
10−11
+0%
|
This is how GTX 660 and HD 6990M Crossfire compete in popular games:
- GTX 660 is 1% faster in 900p
- HD 6990M Crossfire is 126% faster in 1080p
All in all, in popular games:
- there's a draw in 63 tests (100%)
Pros & cons summary
| Performance score | 10.43 | 10.08 |
| Recency | 6 September 2012 | 12 July 2011 |
| Chip lithography | 28 nm | 40 nm |
GTX 660 has a 3.5% higher aggregate performance score, an age advantage of 1 year, and a 42.9% more advanced lithography process.
Given the minimal performance differences, no clear winner can be declared between GeForce GTX 660 and Radeon HD 6990M Crossfire.
Be aware that GeForce GTX 660 is a desktop card while Radeon HD 6990M Crossfire is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Other comparisons
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