GeForce GT 645 OEM vs GTX 550 Ti

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Primary details

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

Place in the ranking688not rated
Place by popularity74not in top-100
Cost-effectiveness evaluation0.70no data
Power efficiency2.42no data
ArchitectureFermi 2.0 (2010−2014)Fermi 2.0 (2010−2014)
GPU code nameGF116GF114
Market segmentDesktopDesktop
Release date15 March 2011 (13 years ago)24 April 2012 (12 years ago)
Launch price (MSRP)$149 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 cores192288
Core clock speed900 MHz776 MHz
Number of transistors1,170 million1,950 million
Manufacturing process technology40 nm40 nm
Power consumption (TDP)116 Watt102 Watt
Maximum GPU temperature100 °Cno data
Texture fill rate28.8037.25
Floating-point processing power0.6912 TFLOPS0.894 TFLOPS
ROPs2424
TMUs3248

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 support16x PCI-E 2.0no data
InterfacePCIe 2.0 x16PCIe 2.0 x16
Length210 mm210 mm
Height4.376" (11.1 cm)no data
Width2-slot2-slot
Supplementary power connectors1x 6-pinno data
SLI options+-

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 typeGDDR5GDDR5
Maximum RAM amount2 GB1 GB
Memory bus width192 Bit192 Bit
Memory clock speed4.1 GB/s957 MHz
Memory bandwidth98.4 GB/s91.87 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 ConnectorsTwo Dual Link DVI-IMini HDMI2x DVI, 1x mini-HDMI
Multi monitor support+no data
HDMI++
Maximum VGA resolution2048x1536no data
Audio input for HDMIInternalno data

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
OpenGL4.24.6
OpenCL1.11.1
VulkanN/AN/A
CUDA+2.1

Pros & cons summary


Recency 15 March 2011 24 April 2012
Maximum RAM amount 2 GB 1 GB
Power consumption (TDP) 116 Watt 102 Watt

GTX 550 Ti has a 100% higher maximum VRAM amount.

GT 645 OEM, on the other hand, has an age advantage of 1 year, and 13.7% lower power consumption.

We couldn't decide between GeForce GTX 550 Ti and GeForce GT 645 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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NVIDIA GeForce GTX 550 Ti
GeForce GTX 550 Ti
NVIDIA GeForce GT 645 OEM
GeForce GT 645 OEM

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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