GeForce GTX 645 OEM vs GTX 460 OEM

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Primary details

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

Place in the ranking780not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.36no data
ArchitectureFermi (2010−2014)Kepler (2012−2018)
GPU code nameGF104GK106
Market segmentDesktopDesktop
Release date11 October 2010 (14 years ago)22 April 2013 (11 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 cores336576
Core clock speed650 MHz824 MHz
Number of transistors1,950 million2,540 million
Manufacturing process technology40 nm28 nm
Power consumption (TDP)150 Watt65 Watt
Texture fill rate36.4039.55
Floating-point processing power0.8736 TFLOPS0.9492 TFLOPS
ROPs3216
TMUs5648

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 2.0 x16PCIe 3.0 x16
Length210 mm147 mm
Width2-slot1-slot
Supplementary power connectors2x 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 typeGDDR5GDDR5
Maximum RAM amount1 GB1 GB
Memory bus width256 Bit128 Bit
Memory clock speed850 MHz1000 MHz
Memory bandwidth108.8 GB/s64 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 Connectors2x DVI, 1x mini-HDMI1x DVI, 1x HDMI, 1x DisplayPort
HDMI++

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
OpenCL1.11.2
VulkanN/A1.1.126
CUDA2.13.0

Pros & cons summary


Recency 11 October 2010 22 April 2013
Chip lithography 40 nm 28 nm
Power consumption (TDP) 150 Watt 65 Watt

GTX 645 OEM has an age advantage of 2 years, a 42.9% more advanced lithography process, and 130.8% lower power consumption.

We couldn't decide between GeForce GTX 460 OEM and GeForce GTX 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 460 OEM
GeForce GTX 460 OEM
NVIDIA GeForce GTX 645 OEM
GeForce GTX 645 OEM

Comparisons with similar GPUs

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Community ratings

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4 16 votes

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3.8 76 votes

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Questions & comments

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