AMD Radeon R6 M340DX vs NVIDIA GeForce GTX 660M

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Combined performance score

GTX 660M
3.69
+29%

GeForce GTX 660M outperforms Radeon R6 M340DX by 29% in our combined benchmark results.

General info

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

Place in performance ranking667747
Place by popularitynot in top-100not in top-100
Value for money0.66no data
ArchitectureKepler (2012−2018)GCN (2011−2017)
GPU code nameN13E-GEJet
Market segmentLaptopLaptop
Release date22 March 2012 (12 years old)3 June 2015 (8 years old)
Current price$276 no data
Value for money

Performance to price ratio. The higher, the better.

no data

Technical specs

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 cores384704
CUDA cores384no data
Core clock speed835 MHzno data
Boost clock speed950 MHz1030 MHz
Number of transistors1,270 million690 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)50 Wattno data
Texture fill rate30.4 billion/sec24.72
Floating-point performance729.6 gflopsno data

Size and compatibility

Information on GeForce GTX 660M and Radeon R6 M340DX compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop sizelargemedium sized
Bus supportPCI Express 2.0, PCI Express 3.0no data
InterfaceMXM-B (3.0)IGP
SLI options+no data

Memory

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 typeGDDR5DDR3
Maximum RAM amount2 GBSystem Shared
Memory bus width128bitSystem Shared
Memory clock speed2000 MHzSystem Shared
Memory bandwidth64.0 GB/sno data
Shared memory--

Video outputs and ports

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 outputsNo outputs
HDMI+no data
HDCP+no data
Maximum VGA resolutionUp to 2048x1536no data

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Optimus+no data

API support

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

DirectX12 API12 (11_1)
Shader Model5.15.1
OpenGL4.54.6
OpenCL1.11.2
Vulkan1.1.1261.2.131
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.

GTX 660M 3.69
+29%
R6 M340DX 2.86

GeForce GTX 660M outperforms Radeon R6 M340DX by 29% in our combined benchmark results.


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.

Benchmark coverage: 17%

GTX 660M 2369
R6 M340DX 2681
+13.2%

Radeon R6 M340DX outperforms GeForce GTX 660M by 13% in 3DMark 11 Performance GPU.

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%

GTX 660M 1751
+19%
R6 M340DX 1472

GeForce GTX 660M outperforms Radeon R6 M340DX by 19% in 3DMark Fire Strike Graphics.

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

Benchmark coverage: 14%

GTX 660M 12861
+43.9%
R6 M340DX 8935

GeForce GTX 660M outperforms Radeon R6 M340DX by 44% in 3DMark Cloud Gate GPU.

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:

900p30
+42.9%
21−24
−42.9%
Full HD35
+250%
10
−250%
1200p38
+40.7%
27−30
−40.7%

Performance in popular games

Full HD
Low Preset

Cyberpunk 2077 7−8
+16.7%
6−7
−16.7%

Full HD
Medium Preset

Assassin's Creed Odyssey 6−7
+50%
4−5
−50%
Assassin's Creed Valhalla 2−3
+100%
1−2
−100%
Battlefield 5 10−11
+66.7%
6−7
−66.7%
Call of Duty: Modern Warfare 14−16
+16.7%
12−14
−16.7%
Cyberpunk 2077 7−8
+16.7%
6−7
−16.7%
Far Cry 5 7−8
+75%
4−5
−75%
Far Cry New Dawn 7−8
+75%
4−5
−75%
Forza Horizon 4 10−12
+57.1%
7−8
−57.1%
Hitman 3 8−9
+60%
5−6
−60%
Horizon Zero Dawn 6−7
+20%
5−6
−20%
Red Dead Redemption 2 7−8
+16.7%
6−7
−16.7%
Shadow of the Tomb Raider 10−11
+11.1%
9−10
−11.1%
Watch Dogs: Legion 3−4
+50%
2−3
−50%

Full HD
High Preset

Assassin's Creed Odyssey 6−7
+50%
4−5
−50%
Assassin's Creed Valhalla 2−3
+100%
1−2
−100%
Battlefield 5 10−11
+66.7%
6−7
−66.7%
Call of Duty: Modern Warfare 14−16
+16.7%
12−14
−16.7%
Cyberpunk 2077 7−8
+16.7%
6−7
−16.7%
Far Cry 5 7−8
+75%
4−5
−75%
Far Cry New Dawn 7−8
+75%
4−5
−75%
Forza Horizon 4 10−12
+57.1%
7−8
−57.1%
Hitman 3 8−9
+60%
5−6
−60%
Horizon Zero Dawn 6−7
+20%
5−6
−20%
Metro Exodus 5−6
+25%
4−5
−25%
Red Dead Redemption 2 7−8
+16.7%
6−7
−16.7%
Shadow of the Tomb Raider 10−11
+11.1%
9−10
−11.1%
The Witcher 3: Wild Hunt 8−9
+33.3%
6
−33.3%
Watch Dogs: Legion 3−4
+50%
2−3
−50%

Full HD
Ultra Preset

Assassin's Creed Odyssey 6−7
+50%
4−5
−50%
Assassin's Creed Valhalla 2−3
+100%
1−2
−100%
Battlefield 5 10−11
+66.7%
6−7
−66.7%
Cyberpunk 2077 7−8
+16.7%
6−7
−16.7%
Far Cry 5 7−8
+75%
4−5
−75%
Far Cry New Dawn 7−8
+75%
4−5
−75%
Forza Horizon 4 10−12
+57.1%
7−8
−57.1%
The Witcher 3: Wild Hunt 8−9
+167%
3
−167%
Watch Dogs: Legion 3−4
+50%
2−3
−50%

1440p
High Preset

Call of Duty: Modern Warfare 6−7
+20%
5−6
−20%
Hitman 3 7−8
+16.7%
6−7
−16.7%
Horizon Zero Dawn 10−11
+0%
10−11
+0%
Metro Exodus 2−3
+100%
1−2
−100%
Red Dead Redemption 2 2−3
+100%
1−2
−100%
Shadow of the Tomb Raider 7−8
+16.7%
6−7
−16.7%

1440p
Ultra Preset

Assassin's Creed Odyssey 1−2 0−1
Cyberpunk 2077 2−3
+0%
2−3
+0%
Far Cry 5 6−7
+50%
4−5
−50%
Far Cry New Dawn 1−2 0−1
Forza Horizon 4 3−4
+50%
2−3
−50%
The Witcher 3: Wild Hunt 3−4
+0%
3−4
+0%

4K
High Preset

Call of Duty: Modern Warfare 3−4
+50%
2−3
−50%
Hitman 3 4−5
+33.3%
3−4
−33.3%
Horizon Zero Dawn 8−9
+0%
8−9
+0%
Red Dead Redemption 2 2−3
+100%
1−2
−100%
Shadow of the Tomb Raider 0−1 0−1

4K
Ultra Preset

Assassin's Creed Odyssey 2−3
+100%
1−2
−100%
Assassin's Creed Valhalla 1−2
+0%
1−2
+0%
Cyberpunk 2077 0−1 0−1
Far Cry 5 4−5
+0%
4−5
+0%
Far Cry New Dawn 6−7
+0%
6−7
+0%
Forza Horizon 4 1−2 0−1

This is how GTX 660M and R6 M340DX compete in popular games:

900p resolution:

  • GTX 660M is 42.9% faster than R6 M340DX

1080p resolution:

  • GTX 660M is 250% faster than R6 M340DX

1200p resolution:

  • GTX 660M is 40.7% faster than R6 M340DX

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

  • in The Witcher 3: Wild Hunt, with 1080p resolution and the Ultra Preset, the GTX 660M is 167% faster than the R6 M340DX.

All in all, in popular games:

  • GTX 660M is ahead in 46 tests (87%)
  • there's a draw in 7 tests (13%)

Advantages and disadvantages


Performance score 3.69 2.86
Recency 22 March 2012 3 June 2015
Maximum RAM amount 2 GB System Shared

The GeForce GTX 660M is our recommended choice as it beats the Radeon R6 M340DX in performance tests.


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

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce GTX 660M
GeForce GTX 660M
AMD Radeon R6 M340DX
Radeon R6 M340DX

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