ATI Radeon HD 5870 Mac Edition vs HD 6450 GDDR5

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Primary details

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

Place in the ranking1118not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.44no data
ArchitectureTerascale 2 (2009−2015)TeraScale 2 (2009−2015)
GPU code nameCaicosCypress
Market segmentDesktopDesktop
Release date18 April 2011 (13 years ago)30 June 2010 (14 years ago)
Launch price (MSRP)no data$479

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 cores1601600
Core clock speed750 MHz850 MHz
Number of transistorsno data2,154 million
Manufacturing process technology40 nm40 nm
Power consumption (TDP)27 Watt228 Watt
Texture fill rateno data68.00
Floating-point processing powerno data2.72 TFLOPS
ROPsno data32
TMUsno data80

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 2.0 x16
Lengthno data279 mm
Widthno data2-slot
Supplementary power connectorsno data2x 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 typeGDDR5GDDR5
Maximum RAM amount1 GB1 GB
Memory bus width64 Bit256 Bit
Memory clock speed900 MHz1195 MHz
Memory bandwidthno data153.0 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, 2x mini-DisplayPort

API compatibility

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

DirectX1111.2 (11_0)
Shader Modelno data5.0
OpenGLno data4.4
OpenCLno data1.2
Vulkan-N/A

Pros & cons summary


Recency 18 April 2011 30 June 2010
Power consumption (TDP) 27 Watt 228 Watt

HD 6450 GDDR5 has an age advantage of 9 months, and 744.4% lower power consumption.

We couldn't decide between Radeon HD 6450 GDDR5 and Radeon HD 5870 Mac Edition. 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 HD 5870 Mac Edition
Radeon HD 5870 Mac Edition

Comparisons with similar GPUs

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Community ratings

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3.4 24 votes

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2.3 9 votes

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Questions & comments

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