GeForce GTX 490 vs GTX 850A

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Primary details

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

Place in the ranking798not rated
Place by popularitynot in top-100not in top-100
Power efficiency4.36no data
ArchitectureMaxwell (2014−2017)Fermi (2010−2014)
GPU code nameGM107GF100
Market segmentLaptopDesktop
Release date17 March 2014 (10 years ago)no data (2024 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 cores640480
Core clock speed902 MHz608 MHz
Boost clock speed936 MHzno data
Number of transistors1,870 million3,100 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)45 Watt365 Watt
Texture fill rate37.4436.48
Floating-point processing power1.198 TFLOPS1.166 TFLOPS
ROPs1648
TMUs4060

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 x16PCIe 2.0 x16
Lengthno data279 mm
Widthno data2-slot
Supplementary power connectorsno data2x 8-pin

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 typeDDR3GDDR5
Maximum RAM amount2 GB1536 MB
Memory bus width128 Bit384 Bit
Memory clock speed900 MHz854 MHz
Memory bandwidth28.8 GB/s164.0 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 ConnectorsNo outputs3x DVI, 1x mini-DisplayPort

API compatibility

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

DirectX12 (11_0)12 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.1
Vulkan1.1.126N/A
CUDA5.02.0

Pros & cons summary


Maximum RAM amount 2 GB 1536 MB
Chip lithography 28 nm 40 nm
Power consumption (TDP) 45 Watt 365 Watt

GTX 850A has a 33.3% higher maximum VRAM amount, a 42.9% more advanced lithography process, and 711.1% lower power consumption.

We couldn't decide between GeForce GTX 850A and GeForce GTX 490. We've got no test results to judge.

Be aware that GeForce GTX 850A is a notebook card while GeForce GTX 490 is a desktop one.


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 GTX 850A
GeForce GTX 850A
NVIDIA GeForce GTX 490
GeForce GTX 490

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 3 votes

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3.3 26 votes

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Questions & comments

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