A100 SXM4 vs Radeon HD 6450A

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Primary details

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

Place in the ranking1178not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.87no data
ArchitectureTeraScale 2 (2009−2015)Ampere (2020−2024)
GPU code nameCaicosGA100
Market segmentLaptopWorkstation
Release date7 April 2011 (13 years ago)14 May 2020 (4 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 cores1606912
Core clock speed625 MHz1410 MHz
Number of transistors370 million54,200 million
Manufacturing process technology40 nm7 nm
Power consumption (TDP)25 Watt400 Watt
Texture fill rate5.000609.1
Floating-point processing power0.2 TFLOPS19.49 TFLOPS
ROPs4160
TMUs8432
Tensor Coresno data432

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).

InterfaceMXM-A (3.0)PCIe 4.0 x16
Widthno dataIGP
Supplementary power connectorsno dataNone

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 typeDDR3HBM2E
Maximum RAM amount512 MB40 GB
Memory bus width64 Bit5120 Bit
Memory clock speed533 MHz1215 MHz
Memory bandwidth8.528 GB/s1,555 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 outputsNo outputs

API compatibility

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

DirectX11.2 (11_0)12 Ultimate (12_2)
Shader Model5.06.5
OpenGL4.44.6
OpenCL1.22.0
VulkanN/A1.2.140
CUDA-8.0

Pros & cons summary


Recency 7 April 2011 14 May 2020
Maximum RAM amount 512 MB 40 GB
Chip lithography 40 nm 7 nm
Power consumption (TDP) 25 Watt 400 Watt

HD 6450A has 1500% lower power consumption.

A100 SXM4, on the other hand, has an age advantage of 9 years, a 7900% higher maximum VRAM amount, and a 471.4% more advanced lithography process.

We couldn't decide between Radeon HD 6450A and A100 SXM4. We've got no test results to judge.

Be aware that Radeon HD 6450A is a notebook card while A100 SXM4 is a workstation 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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AMD Radeon HD 6450A
Radeon HD 6450A
NVIDIA A100 SXM4
A100 SXM4

Comparisons with similar GPUs

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Community ratings

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