GeForce GTX 1660 vs Radeon HD 6620G

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Aggregate performance score

We've compared Radeon HD 6620G and GeForce GTX 1660, covering specs and all relevant benchmarks.

HD 6620G
2011
35 Watt
0.88

GTX 1660 outperforms HD 6620G by a whopping 3340% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking1120180
Place by popularitynot in top-10057
Cost-effectiveness evaluationno data49.13
Power efficiency1.8118.20
ArchitectureTeraScale 2 (2009−2015)Turing (2018−2022)
GPU code nameSumoTU116
Market segmentDesktopDesktop
Release date7 December 2011 (12 years ago)14 March 2019 (5 years ago)
Launch price (MSRP)no data$219

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores4001408
Core clock speed444 MHz1530 MHz
Boost clock speedno data1785 MHz
Number of transistors1,178 million6,600 million
Manufacturing process technology32 nm12 nm
Power consumption (TDP)35 Watt120 Watt
Texture fill rate8.880157.1
Floating-point processing power0.3552 TFLOPS5.027 TFLOPS
ROPs848
TMUs2088

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).

InterfaceIGPPCIe 3.0 x16
Lengthno data229 mm
WidthIGP2-slot
Supplementary power connectorsno data1x 8-pin

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 typeSystem SharedGDDR5
Maximum RAM amountSystem Shared6 GB
Memory bus widthSystem Shared192 Bit
Memory clock speedSystem Shared2001 MHz
Memory bandwidthno data192.1 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 ConnectorsNo outputs1x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.2 (11_0)12 (12_1)
Shader Model5.06.5
OpenGL4.44.6
OpenCL1.21.2
VulkanN/A1.2.131
CUDA-7.5

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.

HD 6620G 0.88
GTX 1660 30.27
+3340%

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.

HD 6620G 341
GTX 1660 11679
+3325%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

HD 6620G 2443
GTX 1660 71229
+2816%

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

HD 6620G 650
GTX 1660 21064
+3141%

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 HD13
−538%
83
+538%
1440p1−2
−5000%
51
+5000%
4K0−128

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 3−4
−2267%
71
+2267%

Full HD
Medium Preset

Assassin's Creed Odyssey 5−6
−1200%
65−70
+1200%
Call of Duty: Modern Warfare 3−4
−2333%
73
+2333%
Cyberpunk 2077 3−4
−1833%
58
+1833%
Far Cry 5 0−1 65−70
Far Cry New Dawn 2−3
−3750%
75−80
+3750%
Hitman 3 5−6
−1280%
69
+1280%
Horizon Zero Dawn 12−14
−2450%
306
+2450%
Red Dead Redemption 2 1−2
−11100%
112
+11100%
Shadow of the Tomb Raider 7−8
−1400%
100−110
+1400%
Watch Dogs: Legion 30−35
−632%
227
+632%

Full HD
High Preset

Assassin's Creed Odyssey 5−6
−2360%
123
+2360%
Call of Duty: Modern Warfare 3−4
−2133%
67
+2133%
Cyberpunk 2077 3−4
−1467%
47
+1467%
Far Cry 5 0−1 65−70
Far Cry New Dawn 2−3
−3750%
75−80
+3750%
Hitman 3 5−6
−1240%
67
+1240%
Horizon Zero Dawn 12−14
−2292%
287
+2292%
Red Dead Redemption 2 1−2
−7800%
79
+7800%
Shadow of the Tomb Raider 7−8
−1471%
110
+1471%
The Witcher 3: Wild Hunt 10−11
−540%
60−65
+540%
Watch Dogs: Legion 30−35
−590%
214
+590%

Full HD
Ultra Preset

Assassin's Creed Odyssey 5−6
−1200%
65−70
+1200%
Call of Duty: Modern Warfare 3−4
−1533%
49
+1533%
Cyberpunk 2077 3−4
−1233%
40
+1233%
Far Cry 5 0−1 65−70
Hitman 3 5−6
−1080%
59
+1080%
Horizon Zero Dawn 12−14
−675%
93
+675%
Shadow of the Tomb Raider 7−8
−1257%
95
+1257%
The Witcher 3: Wild Hunt 10−11
−470%
57
+470%
Watch Dogs: Legion 30−35
+6.9%
29
−6.9%

Full HD
Epic Preset

Red Dead Redemption 2 1−2
−8000%
81
+8000%

1440p
High Preset

Battlefield 5 0−1 55−60
Far Cry New Dawn 1−2
−4500%
45−50
+4500%

1440p
Ultra Preset

Assassin's Creed Odyssey 0−1 30−35
Cyberpunk 2077 1−2
−2300%
24
+2300%
Far Cry 5 1−2
−3400%
35−40
+3400%
Hitman 3 7−8
−457%
39
+457%
Horizon Zero Dawn 4−5
−1575%
67
+1575%
The Witcher 3: Wild Hunt 0−1 40−45
Watch Dogs: Legion 3−4
−6133%
187
+6133%

1440p
Epic Preset

Red Dead Redemption 2 3−4
−1667%
53
+1667%

4K
High Preset

Far Cry New Dawn 0−1 24−27

4K
Ultra Preset

Assassin's Creed Odyssey 1−2
−1800%
18−20
+1800%
Assassin's Creed Valhalla 0−1 15
Far Cry 5 0−1 16−18

4K
Epic Preset

Red Dead Redemption 2 2−3
−1200%
26
+1200%

Full HD
Medium Preset

Assassin's Creed Valhalla 59
+0%
59
+0%
Battlefield 5 95−100
+0%
95−100
+0%
Forza Horizon 4 160−170
+0%
160−170
+0%
Metro Exodus 144
+0%
144
+0%

Full HD
High Preset

Assassin's Creed Valhalla 42
+0%
42
+0%
Battlefield 5 95−100
+0%
95−100
+0%
Forza Horizon 4 160−170
+0%
160−170
+0%
Metro Exodus 113
+0%
113
+0%

Full HD
Ultra Preset

Assassin's Creed Valhalla 37
+0%
37
+0%
Forza Horizon 4 98
+0%
98
+0%

1440p
Ultra Preset

Assassin's Creed Valhalla 27
+0%
27
+0%
Call of Duty: Modern Warfare 34
+0%
34
+0%
Forza Horizon 4 170−180
+0%
170−180
+0%
Metro Exodus 59
+0%
59
+0%
Shadow of the Tomb Raider 67
+0%
67
+0%

4K
High Preset

Battlefield 5 30−33
+0%
30−33
+0%
Hitman 3 21
+0%
21
+0%
Horizon Zero Dawn 63
+0%
63
+0%
Metro Exodus 44
+0%
44
+0%
The Witcher 3: Wild Hunt 35
+0%
35
+0%

4K
Ultra Preset

Call of Duty: Modern Warfare 17
+0%
17
+0%
Cyberpunk 2077 10
+0%
10
+0%
Forza Horizon 4 50
+0%
50
+0%
Shadow of the Tomb Raider 36
+0%
36
+0%
Watch Dogs: Legion 12
+0%
12
+0%

This is how HD 6620G and GTX 1660 compete in popular games:

  • GTX 1660 is 538% faster in 1080p
  • GTX 1660 is 5000% faster in 1440p

Here's the range of performance differences observed across popular games:

  • in Watch Dogs: Legion, with 1080p resolution and the Ultra Preset, the HD 6620G is 7% faster.
  • in Red Dead Redemption 2, with 1080p resolution and the Medium Preset, the GTX 1660 is 11100% faster.

All in all, in popular games:

  • HD 6620G is ahead in 1 test (2%)
  • GTX 1660 is ahead in 37 tests (59%)
  • there's a draw in 25 tests (40%)

Pros & cons summary


Performance score 0.88 30.27
Recency 7 December 2011 14 March 2019
Chip lithography 32 nm 12 nm
Power consumption (TDP) 35 Watt 120 Watt

HD 6620G has 242.9% lower power consumption.

GTX 1660, on the other hand, has a 3339.8% higher aggregate performance score, an age advantage of 7 years, and a 166.7% more advanced lithography process.

The GeForce GTX 1660 is our recommended choice as it beats the Radeon HD 6620G in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon HD 6620G
Radeon HD 6620G
NVIDIA GeForce GTX 1660
GeForce GTX 1660

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.5 85 votes

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4.1 5140 votes

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Questions & comments

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