Radeon HD 7420G vs GeForce GT 640

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Aggregate performance score

We've compared GeForce GT 640 and Radeon HD 7420G, covering specs and all relevant benchmarks.

GT 640
2012
2 GB DDR3, 65 Watt
3.05
+281%

GT 640 outperforms HD 7420G by a whopping 281% based on our aggregate benchmark results.

Primary details

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

Place in the ranking7611138
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.20no data
Power efficiency3.391.65
ArchitectureKepler (2012−2018)TeraScale 3 (2010−2013)
GPU code nameGK107Scrapper Lite
Market segmentDesktopDesktop
Release date5 June 2012 (12 years ago)6 June 2012 (12 years ago)
Launch price (MSRP)$99 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores384128
Core clock speed902 MHz480 MHz
Boost clock speedno data655 MHz
Number of transistors1,270 million1,303 million
Manufacturing process technology28 nm32 nm
Power consumption (TDP)65 Watt35 Watt
Texture fill rate28.865.240
Floating-point processing power0.6927 TFLOPS0.1677 TFLOPS
ROPs164
TMUs328

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).

InterfacePCIe 3.0 x16IGP
Length145 mmno data
Width1-slotIGP
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 typeDDR3System Shared
Maximum RAM amount2 GBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed891 MHzSystem Shared
Memory bandwidth28.51 GB/sno data
Shared memoryno data+

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 Connectors1x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

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

DirectX12 (11_0)11.2 (11_0)
Shader Model5.15.0
OpenGL4.64.4
OpenCL1.21.2
Vulkan1.1.126N/A
CUDA3.0-

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 640 3.05
+281%
HD 7420G 0.80

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.

GT 640 1176
+282%
HD 7420G 308

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.

GT 640 1560
+355%
HD 7420G 343

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

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
+0%
5−6
+0%
Call of Duty: Modern Warfare 3−4
+0%
3−4
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 0−1 0−1
Far Cry New Dawn 1−2
+0%
1−2
+0%
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 12−14
+0%
12−14
+0%
Red Dead Redemption 2 0−1 0−1
Shadow of the Tomb Raider 7−8
+0%
7−8
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
High Preset

Assassin's Creed Odyssey 5−6
+0%
5−6
+0%
Call of Duty: Modern Warfare 3−4
+0%
3−4
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 0−1 0−1
Far Cry New Dawn 1−2
+0%
1−2
+0%
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 12−14
+0%
12−14
+0%
Red Dead Redemption 2 0−1 0−1
Shadow of the Tomb Raider 7−8
+0%
7−8
+0%
The Witcher 3: Wild Hunt 10−11
+0%
10−11
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Ultra Preset

Assassin's Creed Odyssey 5−6
+0%
5−6
+0%
Call of Duty: Modern Warfare 3−4
+0%
3−4
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 0−1 0−1
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 12−14
+0%
12−14
+0%
Shadow of the Tomb Raider 7−8
+0%
7−8
+0%
The Witcher 3: Wild Hunt 10−11
+0%
10−11
+0%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Epic Preset

Red Dead Redemption 2 0−1 0−1

1440p
High Preset

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

1440p
Ultra Preset

Assassin's Creed Odyssey 0−1 0−1
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 3−4
+0%
3−4
+0%

1440p
Epic Preset

Red Dead Redemption 2 3−4
+0%
3−4
+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 0−1
Far Cry 5 0−1 0−1

4K
Epic Preset

Red Dead Redemption 2 2−3
+0%
2−3
+0%

All in all, in popular games:

  • there's a draw in 35 tests (100%)

Pros & cons summary


Performance score 3.05 0.80
Chip lithography 28 nm 32 nm
Power consumption (TDP) 65 Watt 35 Watt

GT 640 has a 281.3% higher aggregate performance score, and a 14.3% more advanced lithography process.

HD 7420G, on the other hand, has 85.7% lower power consumption.

The GeForce GT 640 is our recommended choice as it beats the Radeon HD 7420G 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 640
GeForce GT 640
AMD Radeon HD 7420G
Radeon HD 7420G

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.


3.4 1535 votes

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3 32 votes

Rate Radeon HD 7420G on a scale of 1 to 5:

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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.