ATI Mobility Radeon HD 4670 vs GeForce GT 420M

Aggregate performance score

We've compared GeForce GT 420M and Mobility Radeon HD 4670, covering specs and all relevant benchmarks.

GT 420M
2010
1 GB DDR3, 23 Watt
1.03

ATI Mobility HD 4670 outperforms GT 420M by a moderate 17% based on our aggregate benchmark results.

Primary details

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

Place in the ranking10961047
Place by popularitynot in top-100not in top-100
Power efficiency3.102.37
ArchitectureFermi (2010−2014)TeraScale (2005−2013)
GPU code nameGF108M96
Market segmentLaptopLaptop
Release date3 September 2010 (14 years ago)9 January 2009 (15 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 cores96320
Core clock speed500 MHz675 MHz
Number of transistors585 million514 million
Manufacturing process technology40 nm55 nm
Power consumption (TDP)23 Watt35 Watt
Texture fill rate8.00021.60
Floating-point processing power0.192 TFLOPS0.432 TFLOPS
ROPs48
TMUs1632

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
InterfacePCIe 2.0 x16MXM-A (3.0)

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 typeDDR3GDDR3
Maximum RAM amount1 GB512 MB
Memory bus width128 Bit128 Bit
Memory clock speed800 MHz800 MHz
Memory bandwidth25.6 GB/s25.6 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 API10.1 (10_1)
Shader Model5.14.1
OpenGL4.53.3
OpenCL1.11.1
VulkanN/AN/A
CUDA+-

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.

GT 420M 1.03
ATI Mobility HD 4670 1.20
+16.5%

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.

GT 420M 3051
+1.5%
ATI Mobility HD 4670 3005

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:

900p12
+0%
12−14
+0%
Full HD17
−5.9%
18−20
+5.9%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 3−4
+0%
3−4
+0%

Full HD
Medium Preset

Assassin's Creed Odyssey 5−6
−20%
6−7
+20%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 2−3
−50%
3−4
+50%
Forza Horizon 4 0−1 2−3
Hitman 3 5−6
−20%
6−7
+20%
Horizon Zero Dawn 12−14
−7.7%
14−16
+7.7%
Red Dead Redemption 2 1−2
−100%
2−3
+100%
Shadow of the Tomb Raider 7−8
−14.3%
8−9
+14.3%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
High Preset

Assassin's Creed Odyssey 5−6
−20%
6−7
+20%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 2−3
−50%
3−4
+50%
Forza Horizon 4 0−1 2−3
Hitman 3 5−6
−20%
6−7
+20%
Horizon Zero Dawn 12−14
−7.7%
14−16
+7.7%
Red Dead Redemption 2 1−2
−100%
2−3
+100%
Shadow of the Tomb Raider 7−8
−14.3%
8−9
+14.3%
The Witcher 3: Wild Hunt 10−12
+0%
10−12
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Ultra Preset

Assassin's Creed Odyssey 5−6
−20%
6−7
+20%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Forza Horizon 4 0−1 2−3
Hitman 3 5−6
−20%
6−7
+20%
Horizon Zero Dawn 12−14
−7.7%
14−16
+7.7%
Shadow of the Tomb Raider 7−8
−14.3%
8−9
+14.3%
The Witcher 3: Wild Hunt 10−12
+0%
10−12
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Epic Preset

Red Dead Redemption 2 1−2
−100%
2−3
+100%

1440p
High Preset

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

1440p
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Hitman 3 7−8
+0%
7−8
+0%
Horizon Zero Dawn 4−5
+0%
4−5
+0%
The Witcher 3: Wild Hunt 0−1 0−1
Watch Dogs: Legion 4−5
−50%
6−7
+50%

1440p
Epic Preset

Red Dead Redemption 2 4−5
+0%
4−5
+0%

4K
High Preset

Far Cry New Dawn 0−1 0−1

4K
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
Assassin's Creed Valhalla 0−1 1−2
Call of Duty: Modern Warfare 0−1 0−1
Far Cry 5 0−1 0−1

4K
Epic Preset

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

1440p
Ultra Preset

Call of Duty: Modern Warfare 0−1 0−1

This is how GT 420M and ATI Mobility HD 4670 compete in popular games:

  • A tie in 900p
  • ATI Mobility HD 4670 is 6% faster in 1080p

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

  • in Red Dead Redemption 2, with 1080p resolution and the Medium Preset, the ATI Mobility HD 4670 is 100% faster.

All in all, in popular games:

  • ATI Mobility HD 4670 is ahead in 20 tests (47%)
  • there's a draw in 23 tests (53%)

Pros & cons summary


Performance score 1.03 1.20
Recency 3 September 2010 9 January 2009
Maximum RAM amount 1 GB 512 MB
Chip lithography 40 nm 55 nm
Power consumption (TDP) 23 Watt 35 Watt

GT 420M has an age advantage of 1 year, a 100% higher maximum VRAM amount, a 37.5% more advanced lithography process, and 52.2% lower power consumption.

ATI Mobility HD 4670, on the other hand, has a 16.5% higher aggregate performance score.

The Mobility Radeon HD 4670 is our recommended choice as it beats the GeForce GT 420M 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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NVIDIA GeForce GT 420M
GeForce GT 420M
ATI Mobility Radeon HD 4670
Mobility Radeon HD 4670

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.


2.7 121 vote

Rate GeForce GT 420M on a scale of 1 to 5:

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3.9 13 votes

Rate Mobility Radeon HD 4670 on a scale of 1 to 5:

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Questions & comments

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