Radeon HD 6550D vs GeForce GTX 660 OEM

Place in performance ranking	673	1064
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.10	0.18
Architecture	Kepler (2012−2018)	Terascale 2 (2009−2015)
GPU code name	GK104	Llano
Market segment	Desktop	Desktop
Release date	22 August 2012 (11 years ago)	30 June 2011 (13 years ago)
Current price	$481	$49

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

HD 6550D has 80% better value for money than GTX 660 OEM.

Detailed specifications

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 cores	1152	400
Core clock speed	823 MHz	600 MHz
Boost clock speed	888 MHz	no data
Number of transistors	3,540 million	1000 Million
Manufacturing process technology	28 nm	32 nm
Power consumption (TDP)	130 Watt	65 Watt
Texture fill rate	85.25	12.00
Floating-point performance	2,046 gflops	no data

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).

Interface	PCIe 3.0 x16	IGP
Length	241 mm	no data
Width	2-slot	IGP
Supplementary power connectors	1x 6-pin	no data

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 type	GDDR5	System Shared
Maximum RAM amount	2 GB	System Shared
Memory bus width	256 Bit	System Shared
Memory clock speed	5600 MHz	System Shared
Memory bandwidth	179.2 GB/s	no data
Shared memory	no data	+

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 Connectors	2x DVI, 1x HDMI, 1x DisplayPort	No outputs
HDMI	+	no data

API compatibility

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

DirectX	12 (11_0)	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.6	4.4
OpenCL	1.2	1.2
Vulkan	1.1.126	N/A
CUDA	3.0	no data

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

60−65
+233%

−233%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

10−11

+233%

3−4
−233%

Full HD
Medium Preset

Assassin's Creed Odyssey	3−4 +200%	1−2 −200%
Call of Duty: Modern Warfare	14−16 +250%	4−5 −250%
Cyberpunk 2077	10−11 +233%	3−4 −233%
Far Cry 5	3−4 +200%	1−2 −200%
Far Cry New Dawn	7−8 +250%	2−3 −250%
Forza Horizon 4	7−8 +250%	2−3 −250%
Hitman 3	10−11 +233%	3−4 −233%
Horizon Zero Dawn	45−50 +246%	12−14 −246%
Red Dead Redemption 2	3−4 +200%	1−2 −200%
Shadow of the Tomb Raider	27−30 +238%	8−9 −238%
Watch Dogs: Legion	35−40 +218%	10−12 −218%

Full HD
High Preset

Assassin's Creed Odyssey	3−4 +200%	1−2 −200%
Call of Duty: Modern Warfare	14−16 +250%	4−5 −250%
Cyberpunk 2077	10−11 +233%	3−4 −233%
Far Cry 5	3−4 +200%	1−2 −200%
Far Cry New Dawn	7−8 +250%	2−3 −250%
Forza Horizon 4	7−8 +250%	2−3 −250%
Hitman 3	10−11 +233%	3−4 −233%
Horizon Zero Dawn	45−50 +246%	12−14 −246%
Red Dead Redemption 2	3−4 +200%	1−2 −200%
Shadow of the Tomb Raider	27−30 +238%	8−9 −238%
The Witcher 3: Wild Hunt	14−16 +250%	4−5 −250%
Watch Dogs: Legion	35−40 +218%	10−12 −218%

Full HD
Ultra Preset

Assassin's Creed Odyssey	3−4 +200%	1−2 −200%
Call of Duty: Modern Warfare	14−16 +250%	4−5 −250%
Cyberpunk 2077	10−11 +233%	3−4 −233%
Far Cry 5	3−4 +200%	1−2 −200%
Forza Horizon 4	7−8 +250%	2−3 −250%
Horizon Zero Dawn	45−50 +246%	12−14 −246%
Shadow of the Tomb Raider	27−30 +238%	8−9 −238%
The Witcher 3: Wild Hunt	14−16 +250%	4−5 −250%
Watch Dogs: Legion	35−40 +218%	10−12 −218%

Full HD
Epic Preset

Red Dead Redemption 2

3−4
+200%

1−2

−200%

1440p
High Preset

Battlefield 5	3−4 +200%	1−2 −200%
Far Cry New Dawn	0−1	0−1

1440p
Ultra Preset

Assassin's Creed Odyssey	0−1	0−1
Call of Duty: Modern Warfare	14−16 +250%	4−5 −250%
Cyberpunk 2077	3−4 +200%	1−2 −200%
Far Cry 5	7−8 +250%	2−3 −250%
Forza Horizon 4	0−1	0−1
Hitman 3	24−27 +243%	7−8 −243%
Horizon Zero Dawn	14−16 +250%	4−5 −250%
The Witcher 3: Wild Hunt	0−1	0−1

1440p
Epic Preset

Red Dead Redemption 2

14−16

+250%

4−5
−250%

4K
High Preset

Far Cry New Dawn	0−1	0−1
Horizon Zero Dawn	3−4 +200%	1−2 −200%

4K
Ultra Preset

Assassin's Creed Odyssey	3−4 +200%	1−2 −200%
Assassin's Creed Valhalla	0−1	0−1
Call of Duty: Modern Warfare	0−1	0−1
Far Cry 5	0−1	0−1
Horizon Zero Dawn	3−4 +200%	1−2 −200%
Metro Exodus	14−16 +250%	4−5 −250%