ATI Radeon X1900 XT vs HD 7650M

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Primary details

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

Place in the ranking1068not rated
Place by popularitynot in top-100not in top-100
Power efficiency3.92no data
ArchitectureTeraScale 2 (2009−2015)R500 (2005−2007)
GPU code nameThamesR580
Market segmentLaptopDesktop
Release date7 January 2012 (12 years ago)24 January 2006 (18 years ago)
Launch price (MSRP)no data$299

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 cores480no data
Core clock speed450 MHz625 MHz
Boost clock speed550 MHzno data
Number of transistors716 million384 million
Manufacturing process technology40 nm90 nm
Power consumption (TDP)20 Watt100 Watt
Texture fill rate10.8010.00
Floating-point processing power0.432 TFLOPSno data
ROPs1616
TMUs2416

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).

Laptop sizemedium sizedno data
InterfacePCIe 2.0 x16PCIe 1.0 x16
Lengthno data242 mm
Widthno data2-slot
Supplementary power connectorsno data1x 6-pin

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 typeDDR3GDDR3
Maximum RAM amount1 GB256 MB
Memory bus width128 Bit256 Bit
Memory clock speed800 MHz725 MHz
Memory bandwidth25.6 GB/s46.4 GB/s
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 ConnectorsNo outputs2x DVI, 1x S-Video

API compatibility

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

DirectX11.2 (11_0)9.0c (9_3)
Shader Model5.03.0
OpenGL4.42.1 (full) 3.0 (partial)
OpenCL1.2N/A
VulkanN/AN/A

Pros & cons summary


Recency 7 January 2012 24 January 2006
Maximum RAM amount 1 GB 256 MB
Chip lithography 40 nm 90 nm
Power consumption (TDP) 20 Watt 100 Watt

HD 7650M has an age advantage of 5 years, a 300% higher maximum VRAM amount, a 125% more advanced lithography process, and 400% lower power consumption.

We couldn't decide between Radeon HD 7650M and Radeon X1900 XT. We've got no test results to judge.

Be aware that Radeon HD 7650M is a notebook card while Radeon X1900 XT is a desktop 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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AMD Radeon HD 7650M
Radeon HD 7650M
ATI Radeon X1900 XT
Radeon X1900 XT

Comparisons with similar GPUs

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Community ratings

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3.1 80 votes

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2.2 29 votes

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Questions & comments

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