Radeon 660M vs HD 6520G

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Aggregate performance score

We've compared Radeon HD 6520G and Radeon 660M, covering specs and all relevant benchmarks.

HD 6520G
2011
35 Watt
0.78

660M outperforms HD 6520G by a whopping 955% based on our aggregate benchmark results.

Primary details

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

Place in the ranking1161521
Place by popularitynot in top-100not in top-100
Power efficiency1.5314.10
ArchitectureTeraScale 2 (2009−2015)RDNA 2.0 (2020−2024)
GPU code nameSumoRembrandt+
Market segmentLaptopLaptop
Release date7 December 2011 (13 years ago)3 January 2023 (2 years ago)

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 cores320384
Core clock speed400 MHz1500 MHz
Boost clock speedno data1900 MHz
Number of transistors1,178 million13,100 million
Manufacturing process technology32 nm6 nm
Power consumption (TDP)35 Watt40 Watt
Texture fill rate6.40045.60
Floating-point processing power0.256 TFLOPS1.459 TFLOPS
ROPs816
TMUs1624
Ray Tracing Coresno data6

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 4.0 x8
Supplementary power connectorsno dataNone

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 SharedSystem Shared
Maximum RAM amountSystem SharedSystem Shared
Memory bus widthSystem SharedSystem Shared
Memory clock speedSystem SharedSystem Shared
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 outputsPortable Device Dependent

API and SDK compatibility

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

DirectX11.2 (11_0)12 Ultimate (12_2)
Shader Model5.06.7
OpenGL4.44.6
OpenCL1.22.0
VulkanN/A1.3

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.

HD 6520G 0.78
Radeon 660M 8.23
+955%

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 6520G 299
Radeon 660M 3163
+958%

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 6520G 492
Radeon 660M 6743
+1271%

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 6520G 1678
Radeon 660M 23222
+1284%

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:

900p8
−900%
80−85
+900%
Full HD6
−317%
25
+317%

FPS performance in popular games

Full HD
Low Preset

Atomic Heart 2−3
−1350%
29
+1350%
Counter-Strike 2 7−8
−114%
14−16
+114%
Cyberpunk 2077 2−3
−1100%
24
+1100%

Full HD
Medium Preset

Atomic Heart 2−3
−1050%
23
+1050%
Counter-Strike 2 7−8
−114%
14−16
+114%
Cyberpunk 2077 2−3
−900%
20
+900%
Forza Horizon 4 5−6
−580%
30−35
+580%
PLAYERUNKNOWN'S BATTLEGROUNDS 8−9
−250%
27−30
+250%
Valorant 30−33
−167%
80−85
+167%

Full HD
High Preset

Atomic Heart 2−3
−550%
13
+550%
Counter-Strike 2 7−8
−57.1%
11
+57.1%
Counter-Strike: Global Offensive 20−22
−510%
120−130
+510%
Cyberpunk 2077 2−3
−600%
14
+600%
Dota 2 12−14
−331%
56
+331%
Forza Horizon 4 5−6
−580%
30−35
+580%
Metro Exodus 0−1 15
PLAYERUNKNOWN'S BATTLEGROUNDS 8−9
−250%
27−30
+250%
The Witcher 3: Wild Hunt 4−5
−550%
26
+550%
Valorant 30−33
−167%
80−85
+167%

Full HD
Ultra Preset

Counter-Strike 2 7−8
−114%
14−16
+114%
Cyberpunk 2077 2−3
−700%
16−18
+700%
Dota 2 12−14
−269%
48
+269%
Forza Horizon 4 5−6
−580%
30−35
+580%
PLAYERUNKNOWN'S BATTLEGROUNDS 8−9
−250%
27−30
+250%
The Witcher 3: Wild Hunt 4−5
−275%
15
+275%
Valorant 30−33
−167%
80−85
+167%

1440p
High Preset

Counter-Strike 2 0−1 0−1
Counter-Strike: Global Offensive 3−4
−1867%
55−60
+1867%
PLAYERUNKNOWN'S BATTLEGROUNDS 4−5
−925%
40−45
+925%

1440p
Ultra Preset

Cyberpunk 2077 0−1 6−7
Forza Horizon 4 2−3
−800%
18−20
+800%
The Witcher 3: Wild Hunt 2−3
−500%
12−14
+500%

1440p
Epic Preset

Fortnite 1−2
−1500%
16−18
+1500%

4K
High Preset

Atomic Heart 1−2
−500%
6−7
+500%
Grand Theft Auto V 14−16
−26.7%
18−20
+26.7%
Valorant 4−5
−900%
40−45
+900%

4K
Ultra Preset

Cyberpunk 2077 0−1 2−3
Far Cry 5 1−2
−700%
8−9
+700%
PLAYERUNKNOWN'S BATTLEGROUNDS 2−3
−250%
7−8
+250%

4K
Epic Preset

Fortnite 2−3
−250%
7−8
+250%

Full HD
Medium Preset

Battlefield 5 30−35
+0%
30−35
+0%
Far Cry 5 30
+0%
30
+0%
Fortnite 45−50
+0%
45−50
+0%
Forza Horizon 5 30
+0%
30
+0%

Full HD
High Preset

Battlefield 5 30−35
+0%
30−35
+0%
Far Cry 5 26
+0%
26
+0%
Fortnite 45−50
+0%
45−50
+0%
Forza Horizon 5 18−20
+0%
18−20
+0%
Grand Theft Auto V 25
+0%
25
+0%

Full HD
Ultra Preset

Battlefield 5 30−35
+0%
30−35
+0%
Far Cry 5 25
+0%
25
+0%
Forza Horizon 5 18−20
+0%
18−20
+0%

Full HD
Epic Preset

Fortnite 45−50
+0%
45−50
+0%

1440p
High Preset

Grand Theft Auto V 10−11
+0%
10−11
+0%
Metro Exodus 8−9
+0%
8−9
+0%
Valorant 85−90
+0%
85−90
+0%

1440p
Ultra Preset

Battlefield 5 16−18
+0%
16−18
+0%
Counter-Strike 2 10−12
+0%
10−12
+0%
Far Cry 5 16−18
+0%
16−18
+0%
Forza Horizon 5 12−14
+0%
12−14
+0%

4K
High Preset

Counter-Strike 2 2−3
+0%
2−3
+0%
Metro Exodus 3−4
+0%
3−4
+0%
The Witcher 3: Wild Hunt 7−8
+0%
7−8
+0%

4K
Ultra Preset

Battlefield 5 8−9
+0%
8−9
+0%
Counter-Strike 2 2−3
+0%
2−3
+0%
Dota 2 27−30
+0%
27−30
+0%
Forza Horizon 4 12−14
+0%
12−14
+0%
Forza Horizon 5 5−6
+0%
5−6
+0%

This is how HD 6520G and Radeon 660M compete in popular games:

  • Radeon 660M is 900% faster in 900p
  • Radeon 660M is 317% faster in 1080p

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

  • in Counter-Strike: Global Offensive, with 1440p resolution and the High Preset, the Radeon 660M is 1867% faster.

All in all, in popular games:

  • Radeon 660M is ahead in 36 tests (56%)
  • there's a draw in 28 tests (44%)

Pros & cons summary


Performance score 0.78 8.23
Recency 7 December 2011 3 January 2023
Chip lithography 32 nm 6 nm
Power consumption (TDP) 35 Watt 40 Watt

HD 6520G has 14.3% lower power consumption.

Radeon 660M, on the other hand, has a 955.1% higher aggregate performance score, an age advantage of 11 years, and a 433.3% more advanced lithography process.

The Radeon 660M is our recommended choice as it beats the Radeon HD 6520G in performance tests.

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AMD Radeon HD 6520G
Radeon HD 6520G
AMD Radeon 660M
Radeon 660M

Other comparisons

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Community ratings

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