Radeon 780M vs ATI X1800 XT

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Primary details

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

Place in the rankingnot rated300
Place by popularitynot in top-10049
Power efficiencyno data84.04
ArchitectureR500 (2005−2007)RDNA 3.0 (2022−2024)
GPU code nameR520Hawx Point
Market segmentDesktopLaptop
Release date1 October 2005 (19 years ago)6 December 2023 (1 year ago)
Launch price (MSRP)$549 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 data768
Core clock speed600 MHz800 MHz
Boost clock speedno data2700 MHz
Number of transistors321 million25,390 million
Manufacturing process technology90 nm4 nm
Power consumption (TDP)113 Watt15 Watt
Texture fill rate9.600129.6
Floating-point processing powerno data8.294 TFLOPS
ROPs1632
TMUs1648
Ray Tracing Coresno data12

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
Width2-slotno data
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 typeGDDR3System Shared
Maximum RAM amount512 MBSystem Shared
Memory bus width256 BitSystem Shared
Memory clock speed700 MHzSystem Shared
Memory bandwidth44.8 GB/sno data
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 Connectors2x DVI, 1x S-VideoPortable Device Dependent

API compatibility

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

DirectX9.0c (9_3)12 Ultimate (12_2)
Shader Model3.06.8
OpenGL2.04.6
OpenCLN/A2.1
VulkanN/A1.3

Pros & cons summary


Recency 1 October 2005 6 December 2023
Chip lithography 90 nm 4 nm
Power consumption (TDP) 113 Watt 15 Watt

Radeon 780M has an age advantage of 18 years, a 2150% more advanced lithography process, and 653.3% lower power consumption.

We couldn't decide between Radeon X1800 XT and Radeon 780M. We've got no test results to judge.

Be aware that Radeon X1800 XT is a desktop card while Radeon 780M is a notebook 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 X1800 XT
Radeon X1800 XT
AMD Radeon 780M
Radeon 780M

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.


3.8 12 votes

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4.2 1526 votes

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Questions & comments

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