ATI Radeon HD 5770 X2 vs HD 6450 GDDR5

Primary details

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

Place in the ranking1114not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.47no data
ArchitectureTerascale 2 (2009−2015)TeraScale 2 (2009−2015)
GPU code nameCaicosJuniper
Market segmentDesktopDesktop
Release date18 April 2011 (13 years ago)13 October 2010 (14 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 cores160800
Core clock speed750 MHz850 MHz
Number of transistorsno data1,040 million
Manufacturing process technology40 nm40 nm
Power consumption (TDP)27 Wattno data
Texture fill rateno data34.00
Floating-point processing powerno data1.36 TFLOPS
ROPsno data16
TMUsno data40

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
Widthno data2-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 typeGDDR5GDDR5
Maximum RAM amount1 GB1 GB
Memory bus width64 Bit128 Bit
Memory clock speed900 MHz1200 MHz
Memory bandwidthno data76.8 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 data2x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

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 13 October 2010

HD 6450 GDDR5 has an age advantage of 6 months.

We couldn't decide between Radeon HD 6450 GDDR5 and Radeon HD 5770 X2. 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.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon HD 6450 GDDR5
Radeon HD 6450 GDDR5
ATI Radeon HD 5770 X2
Radeon HD 5770 X2

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.4 24 votes

Rate Radeon HD 6450 GDDR5 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4 1 vote

Rate Radeon HD 5770 X2 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.