Radeon Instinct MI300X vs ATI X1950 XTX Uber Edition

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)CDNA 3.0 (2023−2024)
GPU code nameR580+Aqua Vanjaram
Market segmentDesktopWorkstation
Release date19 January 2007 (17 years ago)6 December 2023 (less than a year ago)
Launch price (MSRP)$788 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 data19456
Core clock speed670 MHz1000 MHz
Boost clock speedno data2100 MHz
Number of transistors384 million153,000 million
Manufacturing process technology90 nm5 nm
Power consumption (TDP)125 Watt750 Watt
Texture fill rate10.722,554
Floating-point processing powerno data81.72 TFLOPS
ROPs16no data
TMUs161216
Tensor Coresno data1216

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 5.0 x16
Length230 mmno data
Width2-slotOAM Module
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 typeGDDR4HBM3
Maximum RAM amount512 MB192 GB
Memory bus width256 Bit8192 Bit
Memory clock speed1050 MHz2525 MHz
Memory bandwidth67.2 GB/s5,171 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 VHDCINo outputs

API compatibility

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

DirectX9.0c (9_3)N/A
Shader Model3.0N/A
OpenGL2.0N/A
OpenCLN/A3.0
VulkanN/AN/A

Pros & cons summary


Recency 19 January 2007 6 December 2023
Maximum RAM amount 512 MB 192 GB
Chip lithography 90 nm 5 nm
Power consumption (TDP) 125 Watt 750 Watt

ATI X1950 XTX Uber Edition has 500% lower power consumption.

Instinct MI300X, on the other hand, has an age advantage of 16 years, a 38300% higher maximum VRAM amount, and a 1700% more advanced lithography process.

We couldn't decide between Radeon X1950 XTX Uber Edition and Radeon Instinct MI300X. We've got no test results to judge.

Be aware that Radeon X1950 XTX Uber Edition is a desktop card while Radeon Instinct MI300X 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 X1950 XTX Uber Edition
Radeon X1950 XTX Uber Edition
AMD Radeon Instinct MI300X
Radeon Instinct MI300X

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Community ratings

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5 1 vote

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3.4 57 votes

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