A100 PCIe vs ATI Radeon X1550 PCI

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
ArchitectureUltra-Threaded SE (2005−2007)Ampere (2020−2024)
GPU code nameRV516GA100
Market segmentDesktopWorkstation
Release date2007 (17 years ago)22 June 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 coresno data6912
Core clock speed452 MHz1410 MHz
Number of transistors105 million54,200 million
Manufacturing process technology90 nm7 nm
Power consumption (TDP)27 Watt250 Watt
Texture fill rate1.808609.1
Floating-point processing powerno data19.49 TFLOPS
ROPs4160
TMUs4432
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).

InterfacePCIPCIe 4.0 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 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 typeDDR2HBM2e
Maximum RAM amount256 MB40 GB
Memory bus width64 Bit5120 Bit
Memory clock speed532 MBps1215 MHz
Memory bandwidth4.256 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 Connectors1x DVI, 1x VGA, 1x S-VideoNo outputs

API compatibility

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

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.5
OpenGL2.14.6
OpenCLN/A2.0
VulkanN/A1.2
CUDA-8.0

Pros & cons summary


Maximum RAM amount 256 MB 40 GB
Chip lithography 90 nm 7 nm
Power consumption (TDP) 27 Watt 250 Watt

ATI X1550 PCI has 825.9% lower power consumption.

A100 PCIe, on the other hand, has a 15900% higher maximum VRAM amount, and a 1185.7% more advanced lithography process.

We couldn't decide between Radeon X1550 PCI and A100 PCIe. We've got no test results to judge.

Be aware that Radeon X1550 PCI is a desktop card while A100 PCIe is a workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


ATI Radeon X1550 PCI
Radeon X1550 PCI
NVIDIA A100 PCIe
A100 PCIe

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.


3.7 13 votes

Rate Radeon X1550 PCI on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.5 31 vote

Rate A100 PCIe on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.