GRID A100A vs ATI Mobility Radeon X1900

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
ArchitectureR500 (2005−2007)Ampere (2020−2024)
GPU code nameM68GA100
Market segmentLaptopWorkstation
Release date11 January 2007 (17 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 cores446912
Core clock speed400 MHz900 MHz
Boost clock speed400 MHz1005 MHz
Number of transistors384 million54,200 million
Manufacturing process technology80 nm7 nm
Power consumption (TDP)no data400 Watt
Texture fill rate4.800434.2
Floating-point processing powerno data13.89 TFLOPS
ROPs12192
TMUs12432
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).

Laptop sizelargeno data
InterfacePCIe 1.0 x16PCIe 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 typeGDDR3HBM2e
Maximum RAM amount256 MB48 GB
Memory bus width256 Bit6144 Bit
Memory clock speed480 MHz1215 MHz
Memory bandwidth30.72 GB/s1,866 GB/s
Shared memory--

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.

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.5
OpenGL2.04.6
OpenCLN/A2.0
VulkanN/A1.2
CUDA-8.0

Pros & cons summary


Recency 11 January 2007 14 May 2020
Maximum RAM amount 256 MB 48 GB
Chip lithography 80 nm 7 nm

GRID A100A has an age advantage of 13 years, a 19100% higher maximum VRAM amount, and a 1042.9% more advanced lithography process.

We couldn't decide between Mobility Radeon X1900 and GRID A100A. We've got no test results to judge.

Be aware that Mobility Radeon X1900 is a notebook card while GRID A100A 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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ATI Mobility Radeon X1900
Mobility Radeon X1900
NVIDIA GRID A100A
GRID A100A

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


1 1 vote

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4 9 votes

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Questions & comments

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