RTX A1000 vs ATI Radeon X1900 XT

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Primary details

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

Place in the rankingnot rated197
Place by popularitynot in top-100not in top-100
Power efficiencyno data38.71
ArchitectureR500 (2005−2007)Ampere (2020−2024)
GPU code nameR580GA107
Market segmentDesktopWorkstation
Release date24 January 2006 (18 years ago)16 April 2024 (less than a year ago)
Launch price (MSRP)$299 no data

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 data2304
Core clock speed625 MHz727 MHz
Boost clock speedno data1462 MHz
Number of transistors384 million8,700 million
Manufacturing process technology90 nm8 nm
Power consumption (TDP)100 Watt50 Watt
Texture fill rate10.00105.3
Floating-point processing powerno data6.737 TFLOPS
ROPs1632
TMUs1672
Tensor Coresno data72
Ray Tracing Coresno data18

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 1.0 x16PCIe 4.0 x8
Length242 mm163 mm
Width2-slot1-slot
Supplementary power connectors1x 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 typeGDDR3GDDR6
Maximum RAM amount256 MB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed725 MHz1500 MHz
Memory bandwidth46.4 GB/s192.0 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 S-Video4x mini-DisplayPort 1.4a

API compatibility

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

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.7
OpenGL2.1 (full) 3.0 (partial)4.6
OpenCLN/A3.0
VulkanN/A1.3
CUDA-8.6

Pros & cons summary


Recency 24 January 2006 16 April 2024
Maximum RAM amount 256 MB 8 GB
Chip lithography 90 nm 8 nm
Power consumption (TDP) 100 Watt 50 Watt

RTX A1000 has an age advantage of 18 years, a 3100% higher maximum VRAM amount, a 1025% more advanced lithography process, and 100% lower power consumption.

We couldn't decide between Radeon X1900 XT and RTX A1000. We've got no test results to judge.

Be aware that Radeon X1900 XT is a desktop card while RTX A1000 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 Radeon X1900 XT
Radeon X1900 XT
NVIDIA RTX A1000
RTX A1000

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Community ratings

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2.4 31 vote

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2.6 14 votes

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