K420 vs FX 3800M

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Combined performance score

FX 3800M
1.51

K420 outperforms FX 3800M by 27% in our combined benchmark results.

General info

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

Place in performance ranking927859
Place by popularitynot in top-100not in top-100
Value for money0.080.07
ArchitectureG9x (2007−2010)Kepler (2012−2018)
GPU code nameN10E-GLM4GK107
Market segmentMobile workstationWorkstation
Release date20 December 2009 (14 years old)22 July 2014 (9 years old)
Launch price (MSRP)no data$96.67
Current price$199 $402 (4.2x MSRP)
Value for money

Performance to price ratio. The higher, the better.

FX 3800M has 14% better value for money than Quadro K420.

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 cores128192
Core clock speed675 MHz876 MHz
Number of transistors754 million1,270 million
Manufacturing process technology55 nm28 nm
Power consumption (TDP)100 Watt41 Watt
Texture fill rate43.2014.02
Floating-point performance422.4 gflops336.4 gflops

Size and compatibility

Information on Quadro FX 3800M and Quadro K420 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). 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 sizelargeno data
InterfaceMXM-B (3.0)PCIe 2.0 x16
Lengthno data160 mm
Widthno data1" (2.5 cm)
Supplementary power connectorsno dataNone

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 typeGDDR3128 Bit
Maximum RAM amount1 GB1 GB/2 GB
Memory bus width256 Bit128 Bit
Memory clock speed1000 MHz1782 MHz
Memory bandwidth64 GB/sUp to 29 GB/s
Shared memory-no data

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 outputsDVI-I DP
Number of simultaneous displaysno data4

Technologies

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

3D Vision Prono data+
Mosaicno data+
nView Desktop Managementno data+

API support

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

DirectX11.1 (10_0)12
Shader Model4.05
OpenGL3.34.5
OpenCL1.11.2
VulkanN/A+
CUDA+3.0

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.

FX 3800M 1.51
Quadro K420 1.92
+27.2%

K420 outperforms FX 3800M by 27% in our combined benchmark results.


Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.

Benchmark coverage: 25%

FX 3800M 585
Quadro K420 745
+27.4%

K420 outperforms FX 3800M by 27% in Passmark.

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 HD34
−17.6%
40−45
+17.6%

Performance in popular games

Full HD
Low Preset

Cyberpunk 2077 4−5
−25%
5−6
+25%

Full HD
Medium Preset

Assassin's Creed Odyssey 0−1 0−1
Battlefield 5 0−1 0−1
Call of Duty: Modern Warfare 10−11
−20%
12−14
+20%
Cyberpunk 2077 4−5
−25%
5−6
+25%
Forza Horizon 4 2−3
+0%
2−3
+0%
Hitman 3 2−3
+0%
2−3
+0%
Horizon Zero Dawn 2−3
+0%
2−3
+0%
Red Dead Redemption 2 4−5
−25%
5−6
+25%
Shadow of the Tomb Raider 7−8
−14.3%
8−9
+14.3%

Full HD
High Preset

Assassin's Creed Odyssey 0−1 0−1
Battlefield 5 0−1 0−1
Call of Duty: Modern Warfare 10−11
−20%
12−14
+20%
Cyberpunk 2077 4−5
−25%
5−6
+25%
Forza Horizon 4 2−3
+0%
2−3
+0%
Hitman 3 2−3
+0%
2−3
+0%
Horizon Zero Dawn 2−3
+0%
2−3
+0%
Metro Exodus 2−3
+0%
2−3
+0%
Red Dead Redemption 2 4−5
−25%
5−6
+25%
Shadow of the Tomb Raider 7−8
−14.3%
8−9
+14.3%
The Witcher 3: Wild Hunt 4−5
−25%
5−6
+25%

Full HD
Ultra Preset

Assassin's Creed Odyssey 0−1 0−1
Battlefield 5 0−1 0−1
Cyberpunk 2077 4−5
−25%
5−6
+25%
Forza Horizon 4 2−3
+0%
2−3
+0%
The Witcher 3: Wild Hunt 4−5
−25%
5−6
+25%

1440p
High Preset

Call of Duty: Modern Warfare 4−5
−25%
5−6
+25%
Hitman 3 4−5
−25%
5−6
+25%
Horizon Zero Dawn 9−10
−11.1%
10−11
+11.1%
Red Dead Redemption 2 0−1 0−1
Shadow of the Tomb Raider 5−6
−20%
6−7
+20%

1440p
Ultra Preset

Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 2−3
+0%
2−3
+0%
The Witcher 3: Wild Hunt 2−3
+0%
2−3
+0%

4K
High Preset

Call of Duty: Modern Warfare 2−3
+0%
2−3
+0%
Hitman 3 2−3
+0%
2−3
+0%
Horizon Zero Dawn 8−9
−25%
10−11
+25%
Red Dead Redemption 2 0−1 0−1

4K
Ultra Preset

Assassin's Creed Odyssey 0−1 0−1
Assassin's Creed Valhalla 0−1 0−1
Far Cry 5 3−4
+0%
3−4
+0%
Far Cry New Dawn 5−6
−20%
6−7
+20%

This is how FX 3800M and Quadro K420 compete in popular games:

1080p resolution:

  • Quadro K420 is 17.6% faster than FX 3800M

Advantages and disadvantages


Performance score 1.51 1.92
Recency 20 December 2009 22 July 2014
Chip lithography 55 nm 28 nm
Power consumption (TDP) 100 Watt 41 Watt

The Quadro K420 is our recommended choice as it beats the Quadro FX 3800M in performance tests.

Be aware that Quadro FX 3800M is a mobile workstation card while Quadro K420 is a workstation one.


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

User ratings

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NVIDIA Quadro FX 3800M
Quadro FX 3800M
NVIDIA Quadro K420
Quadro K420

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