ATI Mach 64 GX vs ATI Radeon X850 XT

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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
ArchitectureR400 (2004−2008)no data
GPU code nameR480Mach64 GX
Market segmentDesktopDesktop
Release date1 December 2004 (19 years ago)1 January 1995 (29 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.

Core clock speed520 MHz10 MHz
Number of transistors160 million1 million
Manufacturing process technology130 nm600 nm
Power consumption (TDP)69 Wattno data
Texture fill rate8.320no data
ROPs161
TMUs16no data

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 x16PCI
Width2-slot1-slot
Supplementary power connectors1x 6-pinno data

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 typeGDDR3VRAM
Maximum RAM amount256 MB2 MB
Memory bus width256 Bit64 Bit
Memory clock speed540 MHz10 MHz
Memory bandwidth34.56 GB/s80.0 MB/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-Video1x DB13W3

API compatibility

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

DirectX9.0b (9_2)None
OpenGL2.0None
OpenCLN/ANone
VulkanN/A-

Pros & cons summary


Recency 1 December 2004 1 January 1995
Maximum RAM amount 256 MB 2 MB
Chip lithography 130 nm 600 nm

ATI X850 XT has an age advantage of 9 years, a 12700% higher maximum VRAM amount, and a 361.5% more advanced lithography process.

We couldn't decide between Radeon X850 XT and Mach 64 GX. We've got no test results to judge.


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 X850 XT
Radeon X850 XT
ATI Mach 64 GX
Mach 64 GX

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Community ratings

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3.3 12 votes

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3 11 votes

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Questions & comments

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