AMD HD 6550A vs ATI HD 3870 X2

Price now 300$
Games supported 58%
ATI Radeon HD 3870 X2
ATI Radeon HD 3870 X2
  • Interface PCIe 2.0 x16
  • Core clock speed 825 MHz
  • Max video memory 512 MB
  • Memory type GDDR3
  • Memory clock speed 1802 MHz
  • Maximum resolution
AMD Radeon HD 6550A
Radeon HD 6550A
  • Interface MXM-A (3.0)
  • Core clock speed 550 MHz
  • Max video memory 2 GB
  • Memory type GDDR3
  • Memory clock speed 1600 MHz
  • Maximum resolution
Price now no data
Games supported 58%

General info

Comparison of graphics card architecture, market segment, value for money and other general parameters.

Place in performance rating799800
Value for money0.05no data
ArchitectureTeraScale (2005−2013)TeraScale 2 (2009−2015)
GPU code nameR680Pinewood
Market segmentDesktopDesktop
Release date26 January 2008
(15 years old)
7 February 2011
(11 years old)
Launch price (MSRP)$449 no data
Current price$300 (0.7x MSRP)no data
Value for money

To calculate the index we compare the characteristics of graphics cards against their prices.

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Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores320480
Core clock speed825 MHz550 MHz
Number of transistors666 million627 million
Manufacturing process technology55 nm40 nm
Thermal design power (TDP)165 Watt35 Watt
Texture fill rate13.2013.20
Floating-point performance2x 528.0 gflops624.0 gflops

Compatibility, dimensions and requirements

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 2.0 x16MXM-A (3.0)
Length267 mmno data
Width2-slotMXM Module
Supplementary power connectors1x 6-pin + 1x 8-pinno data


Parameters of memory installed: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated VRAM and use a shared part of system RAM.

Memory typeGDDR3GDDR3
Maximum RAM amount512 MB2 GB
Memory bus width256 Bit128 Bit
Memory clock speed1802 MHz1600 MHz
Memory bandwidth57.66 GB/s25.6 GB/s

Video outputs and ports

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 Connectors2x DVI, 1x S-VideoNo outputs

API support

APIs supported, including particular versions of those APIs.

DirectX10.1 (10_1)11.2 (11_0)
Shader Model4.15.0

Benchmark performance

Non-gaming benchmark performance comparison. Note that overall benchmark performance is measured in points in 0-100 range.

Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

ATI HD 3870 X2 1.80
HD 6550A 1.80
  • Passmark


This is probably the most ubiquitous benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

ATI HD 3870 X2 708
HD 6550A 707

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Advantages and disadvantages

Recency 26 January 2008 7 February 2011
Memory bus width 256 128
Memory bandwidth 57.66 25.6
Pipelines / CUDA cores 320 480
Chip lithography 55 nm 40 nm
Thermal design power (TDP) 165 Watt 35 Watt

Technical City couldn't decide between

ATI Radeon HD 3870 X2
Radeon HD 3870 X2


AMD Radeon HD 6550A
Radeon HD 6550A

The differences in performance seem too small.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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Competitors of Radeon HD 3870 X2 by NVIDIA

According to our data, the nearest equivalent to Radeon HD 3870 X2 by NVIDIA is GeForce GT 630, which is slower by 3% and lower by 8 positions in our rating.

NVIDIA GeForce GT 630 GeForce GT 630

Here are some closest NVIDIA rivals to Radeon HD 3870 X2:

Radeon HD 3870 X2 100
GeForce 720A 93.33

Competitors of Radeon HD 6550A by NVIDIA

According to our data, the nearest equivalent to Radeon HD 6550A by NVIDIA is GeForce GT 630, which is slower by 3% and lower by 7 positions in our rating.

NVIDIA GeForce GT 630 GeForce GT 630

Here are some closest NVIDIA rivals to Radeon HD 6550A:

Radeon HD 6550A 100
GeForce 720A 93.33

Similar GPU comparisons

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

User rating

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Questions and comments

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