ATI Radeon X800 XT Platinum vs HD 6450 GDDR5

Primary details

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

Place in the ranking1111not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.57no data
ArchitectureTerascale 2 (2009−2015)R400 (2004−2008)
GPU code nameCaicosR423
Market segmentDesktopDesktop
Release date18 April 2011 (13 years ago)1 March 2004 (20 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 cores160no data
Core clock speed750 MHz520 MHz
Number of transistorsno data160 million
Manufacturing process technology40 nm130 nm
Power consumption (TDP)27 Watt63 Watt
Texture fill rateno data8.320
ROPsno data16
TMUsno data16

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).

Interfaceno dataPCIe 1.0 x16
Widthno data1-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 typeGDDR5GDDR3
Maximum RAM amount1 GB256 MB
Memory bus width64 Bit256 Bit
Memory clock speed900 MHz560 MHz
Memory bandwidthno data35.84 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 data1x DVI, 1x VGA, 1x S-Video

API compatibility

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

DirectX119.0b (9_2)
OpenGLno data2.0
OpenCLno dataN/A
Vulkan-N/A

Pros & cons summary


Recency 18 April 2011 1 March 2004
Maximum RAM amount 1 GB 256 MB
Chip lithography 40 nm 130 nm
Power consumption (TDP) 27 Watt 63 Watt

HD 6450 GDDR5 has an age advantage of 7 years, a 300% higher maximum VRAM amount, a 225% more advanced lithography process, and 133.3% lower power consumption.

We couldn't decide between Radeon HD 6450 GDDR5 and Radeon X800 XT Platinum. 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 6450 GDDR5
Radeon HD 6450 GDDR5
ATI Radeon X800 XT Platinum
Radeon X800 XT Platinum

Comparisons with similar GPUs

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Community ratings

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3.4 24 votes

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