ATI Radeon 8500 X4 vs HD 7640G

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Primary details

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

Place in the ranking1053not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.36no data
ArchitectureTeraScale 3 (2010−2013)Rage 7 (2001−2006)
GPU code nameDevastator LiteR200
Market segmentDesktopDesktop
Release date15 May 2012 (12 years ago)no data (2024 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 cores256no data
Core clock speed496 MHz250 MHz
Boost clock speed685 MHzno data
Number of transistors1,303 million60 million
Manufacturing process technology32 nm150 nm
Power consumption (TDP)35 Watt92 Watt
Texture fill rate10.962.000
Floating-point processing power0.3507 TFLOPSno data
ROPs84
TMUs168

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).

InterfaceIGPPCI-X
Lengthno data330 mm
WidthIGP1-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 typeSystem SharedDDR
Maximum RAM amountSystem Shared64 MB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared250 MHz
Memory bandwidthno data4 GB/s
Shared memory+no data

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 outputs2x DVI

API compatibility

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

DirectX11.2 (11_0)8.1
Shader Model5.0no data
OpenGL4.41.3
OpenCL1.2N/A
VulkanN/AN/A

Pros & cons summary


Chip lithography 32 nm 150 nm
Power consumption (TDP) 35 Watt 92 Watt

HD 7640G has a 368.8% more advanced lithography process, and 162.9% lower power consumption.

We couldn't decide between Radeon HD 7640G and Radeon 8500 X4. 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 HD 7640G
Radeon HD 7640G
ATI Radeon 8500 X4
Radeon 8500 X4

Comparisons with similar GPUs

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Community ratings

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2.9 165 votes

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Questions & comments

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