ATI Mach 64 GX vs Radeon R7 A265

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Primary details

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

Place in the ranking825not rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)no data
GPU code nameOpalMach64 GX
Market segmentDesktopDesktop
Release date9 January 2014 (10 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.

Pipelines / CUDA cores384no data
Core clock speed725 MHz10 MHz
Boost clock speed825 MHzno data
Number of transistors950 million1 million
Manufacturing process technology28 nm600 nm
Texture fill rate19.80no data
Floating-point processing power0.6336 TFLOPSno data
ROPs81
TMUs24no 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 3.0 x8PCI
Widthno data1-slot

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 typeDDR3VRAM
Maximum RAM amount2 GB2 MB
Memory bus width128 Bit64 Bit
Memory clock speed900 MHz10 MHz
Memory bandwidth28.8 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 ConnectorsNo outputs1x DB13W3

API compatibility

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

DirectX12 (11_1)None
Shader Model5.1no data
OpenGL4.6None
OpenCL1.2None
Vulkan1.2.131-

Pros & cons summary


Recency 9 January 2014 1 January 1995
Maximum RAM amount 2 GB 2 MB
Chip lithography 28 nm 600 nm

R7 A265 has an age advantage of 19 years, a 102300% higher maximum VRAM amount, and a 2042.9% more advanced lithography process.

We couldn't decide between Radeon R7 A265 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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AMD Radeon R7 A265
Radeon R7 A265
ATI Mach 64 GX
Mach 64 GX

Comparisons with similar GPUs

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Community ratings

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Questions & comments

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