Radeon HD 8670M vs R6 M340DX

Aggregate performance score

We've compared Radeon R6 M340DX and Radeon HD 8670M, covering specs and all relevant benchmarks.

R6 M340DX
2015
2.85
+111%

R6 M340DX outperforms HD 8670M by a whopping 111% based on our aggregate benchmark results.

Primary details

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

Place in the ranking7901020
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)GCN 1.0 (2011−2020)
GPU code nameJetSun
Market segmentLaptopLaptop
Release date12 December 2015 (8 years ago)1 March 2013 (11 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 cores384320
Core clock speed955 MHz925 MHz
Boost clock speed1030 MHz975 MHz
Number of transistors690 million690 million
Manufacturing process technology28 nm28 nm
Texture fill rate24.7219.50
Floating-point processing power0.791 TFLOPS0.624 TFLOPS
ROPs88
TMUs2420

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 sizemedium sizedmedium sized
InterfaceIGPPCIe 3.0 x8

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 SharedDDR3
Maximum RAM amountSystem Shared2 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared1000 MHz
Memory bandwidthno data16 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 outputsNo outputs

API compatibility

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

DirectX12 (11_1)12 (11_1)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1311.2.131

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.

R6 M340DX 2.85
+111%
HD 8670M 1.35

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.

R6 M340DX 2681
+92%
HD 8670M 1396

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.

R6 M340DX 1472
+77.6%
HD 8670M 829

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.

R6 M340DX 8935
+84.6%
HD 8670M 4840

Unigine Heaven 3.0

This is an old DirectX 11 benchmark using Unigine, a 3D game engine by eponymous Russian company. It displays a fantasy medieval town sprawling over several flying islands. Version 3.0 was released in 2012, and in 2013 it was superseded by Heaven 4.0, which introduced several slight improvements, including a newer version of Unigine.

R6 M340DX 18
+94.7%
HD 8670M 9

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 HD10
−20%
12
+20%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 6−7
+50%
4−5
−50%

Full HD
Medium Preset

Assassin's Creed Odyssey 9−10
+50%
6−7
−50%
Assassin's Creed Valhalla 1−2 0−1
Battlefield 5 5−6
+150%
2−3
−150%
Call of Duty: Modern Warfare 7−8
+75%
4−5
−75%
Cyberpunk 2077 6−7
+50%
4−5
−50%
Far Cry 5 5−6
+150%
2−3
−150%
Far Cry New Dawn 8−9
+167%
3−4
−167%
Forza Horizon 4 14−16
+400%
3−4
−400%
Hitman 3 8−9
+33.3%
6−7
−33.3%
Horizon Zero Dawn 21−24
+57.1%
14−16
−57.1%
Metro Exodus 3−4
+200%
1−2
−200%
Red Dead Redemption 2 7−8
+250%
2−3
−250%
Shadow of the Tomb Raider 12−14
+50%
8−9
−50%
Watch Dogs: Legion 35−40
+18.2%
30−35
−18.2%

Full HD
High Preset

Assassin's Creed Odyssey 9−10
+50%
6−7
−50%
Assassin's Creed Valhalla 1−2 0−1
Battlefield 5 5−6
+150%
2−3
−150%
Call of Duty: Modern Warfare 7−8
+75%
4−5
−75%
Cyberpunk 2077 6−7
+50%
4−5
−50%
Far Cry 5 5−6
+150%
2−3
−150%
Far Cry New Dawn 8−9
+167%
3−4
−167%
Forza Horizon 4 14−16
+400%
3−4
−400%
Hitman 3 8−9
+33.3%
6−7
−33.3%
Horizon Zero Dawn 21−24
+57.1%
14−16
−57.1%
Metro Exodus 3−4
+200%
1−2
−200%
Red Dead Redemption 2 7−8
+250%
2−3
−250%
Shadow of the Tomb Raider 12−14
+50%
8−9
−50%
The Witcher 3: Wild Hunt 14−16
+27.3%
10−12
−27.3%
Watch Dogs: Legion 35−40
+18.2%
30−35
−18.2%

Full HD
Ultra Preset

Assassin's Creed Odyssey 9−10
+50%
6−7
−50%
Assassin's Creed Valhalla 1−2 0−1
Call of Duty: Modern Warfare 7−8
+75%
4−5
−75%
Cyberpunk 2077 6−7
+50%
4−5
−50%
Far Cry 5 5−6
+150%
2−3
−150%
Forza Horizon 4 14−16
+400%
3−4
−400%
Hitman 3 8−9
+33.3%
6−7
−33.3%
Horizon Zero Dawn 21−24
+57.1%
14−16
−57.1%
Shadow of the Tomb Raider 12−14
+50%
8−9
−50%
The Witcher 3: Wild Hunt 3
−267%
10−12
+267%
Watch Dogs: Legion 35−40
+18.2%
30−35
−18.2%

Full HD
Epic Preset

Red Dead Redemption 2 7−8
+250%
2−3
−250%

1440p
High Preset

Battlefield 5 5−6
+400%
1−2
−400%
Far Cry New Dawn 4−5
+100%
2−3
−100%

1440p
Ultra Preset

Assassin's Creed Odyssey 2−3
+100%
1−2
−100%
Call of Duty: Modern Warfare 2−3 0−1
Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 3−4
+200%
1−2
−200%
Hitman 3 8−9
+14.3%
7−8
−14.3%
Horizon Zero Dawn 7−8
+40%
5−6
−40%
The Witcher 3: Wild Hunt 2−3
+100%
1−2
−100%
Watch Dogs: Legion 16−18
+183%
6−7
−183%

1440p
Epic Preset

Red Dead Redemption 2 6−7
+50%
4−5
−50%

4K
High Preset

Battlefield 5 1−2 0−1
Far Cry New Dawn 2−3
+100%
1−2
−100%

4K
Ultra Preset

Assassin's Creed Odyssey 2−3
+100%
1−2
−100%
Assassin's Creed Valhalla 1−2
+0%
1−2
+0%
Call of Duty: Modern Warfare 1−2 0−1
Far Cry 5 1−2 0−1
Forza Horizon 4 0−1 0−1
Watch Dogs: Legion 1−2 0−1

4K
Epic Preset

Red Dead Redemption 2 4−5
+33.3%
3−4
−33.3%

This is how R6 M340DX and HD 8670M compete in popular games:

  • HD 8670M is 20% faster in 1080p

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

  • in Forza Horizon 4, with 1080p resolution and the Medium Preset, the R6 M340DX is 400% faster.
  • in The Witcher 3: Wild Hunt, with 1080p resolution and the Ultra Preset, the HD 8670M is 267% faster.

All in all, in popular games:

  • R6 M340DX is ahead in 46 tests (94%)
  • HD 8670M is ahead in 1 test (2%)
  • there's a draw in 2 tests (4%)

Pros & cons summary


Performance score 2.85 1.35
Recency 12 December 2015 1 March 2013

R6 M340DX has a 111.1% higher aggregate performance score, and an age advantage of 2 years.

The Radeon R6 M340DX is our recommended choice as it beats the Radeon HD 8670M 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 R6 M340DX
Radeon R6 M340DX
AMD Radeon HD 8670M
Radeon HD 8670M

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.


3.7 37 votes

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3.4 242 votes

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Questions & comments

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