GeForce GT 420 OEM vs Radeon HD 7850

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Primary details

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

Place in the ranking451not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.81no data
Power efficiency5.34no data
ArchitectureGCN 1.0 (2011−2020)Fermi (2010−2014)
GPU code namePitcairnGF108
Market segmentDesktopDesktop
Designreferenceno data
Release date5 March 2012 (12 years ago)3 September 2010 (14 years ago)
Launch price (MSRP)$249 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 cores102448
Core clock speedno data700 MHz
Boost clock speed1000 MHzno data
Number of transistors2,800 million585 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)130 Watt50 Watt
Texture fill rate55.042.800
Floating-point processing power1.761 TFLOPS0.1344 TFLOPS
ROPs324
TMUs644

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 2.1 x16no data
InterfacePCIe 3.0 x16PCIe 2.0 x16
Length210 mm145 mm
Width2-slot1-slot
Supplementary power connectors1x 6-pinNone

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 typeGDDR5DDR3
Maximum RAM amount2 GB1 GB
Memory bus width256 Bit128 Bit
Memory clock speed1200 MHz900 MHz
Memory bandwidth153.6 GB/s28.8 GB/s

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, 2x mini-DisplayPort1x DVI, 1x HDMI, 1x VGA
Eyefinity+-
HDMI++

Supported technologies

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

CrossFire+-
FreeSync+-

API compatibility

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

DirectX1212 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.1
Vulkan+N/A
CUDA-2.1

Pros & cons summary


Recency 5 March 2012 3 September 2010
Maximum RAM amount 2 GB 1 GB
Chip lithography 28 nm 40 nm
Power consumption (TDP) 130 Watt 50 Watt

HD 7850 has an age advantage of 1 year, a 100% higher maximum VRAM amount, and a 42.9% more advanced lithography process.

GT 420 OEM, on the other hand, has 160% lower power consumption.

We couldn't decide between Radeon HD 7850 and GeForce GT 420 OEM. We've got no test results to judge.


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 HD 7850
Radeon HD 7850
NVIDIA GeForce GT 420 OEM
GeForce GT 420 OEM

Comparisons with similar GPUs

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Community ratings

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4.1 815 votes

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Questions & comments

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