GeForce RTX 5080 vs GT 645 OEM

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Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureFermi 2.0 (2010−2014)Blackwell 2.0 (2025)
GPU code nameGF114GB203
Market segmentDesktopDesktop
Release date24 April 2012 (12 years ago)2025

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 cores28810752
Core clock speed776 MHz2235 MHz
Boost clock speedno data2520 MHz
Number of transistors1,950 millionno data
Manufacturing process technology40 nm0 nm
Power consumption (TDP)102 Watt350 Watt
Texture fill rate37.25846.7
Floating-point processing power0.894 TFLOPS54.19 TFLOPS
ROPs24128
TMUs48336
Tensor Coresno data336
Ray Tracing Coresno data84

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 5.0 x16
Length210 mm304 mm
Width2-slot3-slot
Supplementary power connectorsno data1x 16-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 typeGDDR5GDDR7
Maximum RAM amount1 GB16 GB
Memory bus width192 Bit256 Bit
Memory clock speed957 MHz2400 MHz
Memory bandwidth91.87 GB/s973.8 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 Connectors2x DVI, 1x mini-HDMI1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI++

API compatibility

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

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.8
OpenGL4.64.6
OpenCL1.13.0
VulkanN/A1.3
CUDA2.110.1

Pros & cons summary


Maximum RAM amount 1 GB 16 GB
Power consumption (TDP) 102 Watt 350 Watt

GT 645 OEM has 243.1% lower power consumption.

RTX 5080, on the other hand, has a 1500% higher maximum VRAM amount.

We couldn't decide between GeForce GT 645 OEM and GeForce RTX 5080. 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 GT 645 OEM
GeForce GT 645 OEM
NVIDIA GeForce RTX 5080
GeForce RTX 5080

Comparisons with similar GPUs

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Community ratings

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3 82 votes

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Questions & comments

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