Radeon R5 M420 vs R7 M340

Aggregate performance score

We've compared Radeon R7 M340 and Radeon R5 M420, covering specs and all relevant benchmarks.

R7 M340
2015
4 GB DDR3
1.70
+34.9%

R7 M340 outperforms R5 M420 by a substantial 35% based on our aggregate benchmark results.

Primary details

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

Place in the ranking9291033
Place by popularitynot in top-100not in top-100
ArchitectureGCN 3.0 (2014−2019)GCN 1.0 (2011−2020)
GPU code nameMesoJet
Market segmentLaptopLaptop
Release date5 May 2015 (9 years ago)15 May 2016 (8 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 cores320320
Compute units6no data
Core clock speed943 MHz780 MHz
Boost clock speed1021 MHz850 MHz
Number of transistors1,550 million690 million
Manufacturing process technology28 nm28 nm
Texture fill rate20.4217.00
Floating-point processing power0.6534 TFLOPS0.544 TFLOPS
ROPs88
TMUs2020

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).

Bus supportPCIe 3.0no data
InterfacePCIe 3.0 x8PCIe 3.0 x8
Supplementary power connectorsNoneno data

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 typeDDR3DDR3
Maximum RAM amount4 GB4 GB
Memory bus width128 Bit64 Bit
Memory clock speed1000 MHz1000 MHz
Memory bandwidth16 GB/s16 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
Eyefinity+-

Supported technologies

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

FreeSync+-
HD3D+-
PowerTune+-
DualGraphics+-
ZeroCore+-
Switchable graphics+-

API compatibility

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

DirectXDirectX® 1212 (11_1)
Shader Model6.05.1
OpenGL4.44.6
OpenCLNot Listed1.2
Vulkan+1.2.131
Mantle+-

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.

R7 M340 1.70
+34.9%
R5 M420 1.26

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.

R7 M340 655
+34.8%
R5 M420 486

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
+44.4%
9−10
−44.4%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 4−5
+33.3%
3−4
−33.3%

Full HD
Medium Preset

Assassin's Creed Odyssey 7−8
+16.7%
6−7
−16.7%
Battlefield 5 0−1 0−1
Call of Duty: Modern Warfare 5−6
+25%
4−5
−25%
Cyberpunk 2077 4−5
+33.3%
3−4
−33.3%
Far Cry 5 2−3
+100%
1−2
−100%
Far Cry New Dawn 4−5
+33.3%
3−4
−33.3%
Forza Horizon 4 6−7
+200%
2−3
−200%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 16−18
+14.3%
14−16
−14.3%
Red Dead Redemption 2 3−4
+50%
2−3
−50%
Shadow of the Tomb Raider 9−10
+12.5%
8−9
−12.5%
Watch Dogs: Legion 30−35
+3%
30−35
−3%

Full HD
High Preset

Assassin's Creed Odyssey 7−8
+16.7%
6−7
−16.7%
Battlefield 5 0−1 0−1
Call of Duty: Modern Warfare 5−6
+25%
4−5
−25%
Cyberpunk 2077 4−5
+33.3%
3−4
−33.3%
Far Cry 5 2−3
+100%
1−2
−100%
Far Cry New Dawn 4−5
+33.3%
3−4
−33.3%
Forza Horizon 4 6−7
+200%
2−3
−200%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 16−18
+14.3%
14−16
−14.3%
Red Dead Redemption 2 3−4
+50%
2−3
−50%
Shadow of the Tomb Raider 9−10
+12.5%
8−9
−12.5%
The Witcher 3: Wild Hunt 21
+90.9%
10−12
−90.9%
Watch Dogs: Legion 30−35
+3%
30−35
−3%

Full HD
Ultra Preset

Assassin's Creed Odyssey 7−8
+16.7%
6−7
−16.7%
Call of Duty: Modern Warfare 5−6
+25%
4−5
−25%
Cyberpunk 2077 4−5
+33.3%
3−4
−33.3%
Far Cry 5 2−3
+100%
1−2
−100%
Forza Horizon 4 6−7
+200%
2−3
−200%
Hitman 3 6−7
+0%
6−7
+0%
Horizon Zero Dawn 16−18
+14.3%
14−16
−14.3%
Shadow of the Tomb Raider 9−10
+12.5%
8−9
−12.5%
The Witcher 3: Wild Hunt 4
−175%
10−12
+175%
Watch Dogs: Legion 30−35
+3%
30−35
−3%

Full HD
Epic Preset

Red Dead Redemption 2 3−4
+50%
2−3
−50%

1440p
High Preset

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

1440p
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
Call of Duty: Modern Warfare 1−2 0−1
Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 2−3
+100%
1−2
−100%
Hitman 3 7−8
+0%
7−8
+0%
Horizon Zero Dawn 5−6
+25%
4−5
−25%
The Witcher 3: Wild Hunt 1−2 0−1
Watch Dogs: Legion 9−10
+50%
6−7
−50%

1440p
Epic Preset

Red Dead Redemption 2 4−5
+0%
4−5
+0%

4K
High Preset

Far Cry New Dawn 1−2 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%
Call of Duty: Modern Warfare 0−1 0−1
Far Cry 5 1−2 0−1
Watch Dogs: Legion 0−1 0−1

4K
Epic Preset

Red Dead Redemption 2 3−4
+0%
3−4
+0%

This is how R7 M340 and R5 M420 compete in popular games:

  • R7 M340 is 44% 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 R7 M340 is 200% faster.
  • in The Witcher 3: Wild Hunt, with 1080p resolution and the Ultra Preset, the R5 M420 is 175% faster.

All in all, in popular games:

  • R7 M340 is ahead in 36 tests (77%)
  • R5 M420 is ahead in 1 test (2%)
  • there's a draw in 10 tests (21%)

Pros & cons summary


Performance score 1.70 1.26
Recency 5 May 2015 15 May 2016

R7 M340 has a 34.9% higher aggregate performance score.

R5 M420, on the other hand, has an age advantage of 1 year.

The Radeon R7 M340 is our recommended choice as it beats the Radeon R5 M420 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 R7 M340
Radeon R7 M340
AMD Radeon R5 M420
Radeon R5 M420

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.


2.9 314 votes

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Questions & comments

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