AMD Radeon RX 550X vs AMD Radeon HD 6990

Comparative analysis of AMD Radeon RX 550X and AMD Radeon HD 6990 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G2D Mark, PassMark - G3D Mark, Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), 3DMark Fire Strike - Graphics Score.

AMD Radeon RX 550X

AMD Radeon HD 6990

Differences

Reasons to consider the AMD Radeon RX 550X

Videocard is newer: launch date 7 year(s) 0 month(s) later
Around 33% higher core clock speed: 1100 MHz vs 830 MHz
184.1x more texture fill rate: 51.48 GTexel/s vs 2x 79.7 GTexel / s billion / sec
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 40 nm
7.5x lower typical power consumption: 50 Watt vs 375 Watt
Around 40% higher memory clock speed: 7000 MHz vs 5000 MHz

Launch date	3 April 2018 vs 8 March 2011
Core clock speed	1100 MHz vs 830 MHz
Texture fill rate	51.48 GTexel/s vs 2x 79.7 GTexel / s billion / sec
Manufacturing process technology	14 nm vs 40 nm
Thermal Design Power (TDP)	50 Watt vs 375 Watt
Memory clock speed	7000 MHz vs 5000 MHz

Reasons to consider the AMD Radeon HD 6990

6x more pipelines: 2x 1536 vs 512
3090.7x better floating-point performance: 2x 2,549.8 gflops vs 1.65 TFLOPs
Around 49% better performance in PassMark - G2D Mark: 630 vs 422
Around 34% better performance in PassMark - G3D Mark: 3013 vs 2253
Around 33% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 4562 vs 3428
Around 33% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 4562 vs 3428
Around 18% better performance in GFXBench 4.0 - Manhattan (Frames): 3713 vs 3139
Around 18% better performance in GFXBench 4.0 - Manhattan (Fps): 3713 vs 3139

Specifications (specs)
Pipelines	2x 1536 vs 512
Floating-point performance	2x 2,549.8 gflops vs 1.65 TFLOPs
Benchmarks
PassMark - G2D Mark	630 vs 422
PassMark - G3D Mark	3013 vs 2253
GFXBench 4.0 - Car Chase Offscreen (Frames)	4562 vs 3428
GFXBench 4.0 - Car Chase Offscreen (Fps)	4562 vs 3428
GFXBench 4.0 - Manhattan (Frames)	3713 vs 3139
GFXBench 4.0 - Manhattan (Fps)	3713 vs 3139
GFXBench 4.0 - T-Rex (Frames)	3356 vs 3349
GFXBench 4.0 - T-Rex (Fps)	3356 vs 3349

Compare benchmarks

GPU 1: AMD Radeon RX 550X
GPU 2: AMD Radeon HD 6990

PassMark - G2D Mark

GPU 1

GPU 2

422

630

PassMark - G3D Mark

GPU 1

GPU 2

2253

3013

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

3428

4562

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

3428

4562

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

3139

3713

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

3139

3713

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3349

3356

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3349

3356

Name	AMD Radeon RX 550X	AMD Radeon HD 6990
PassMark - G2D Mark	422	630
PassMark - G3D Mark	2253	3013
Geekbench - OpenCL	8679
GFXBench 4.0 - Car Chase Offscreen (Frames)	3428	4562
GFXBench 4.0 - Car Chase Offscreen (Fps)	3428	4562
GFXBench 4.0 - Manhattan (Frames)	3139	3713
GFXBench 4.0 - Manhattan (Fps)	3139	3713
GFXBench 4.0 - T-Rex (Frames)	3349	3356
GFXBench 4.0 - T-Rex (Fps)	3349	3356
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		17.264
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		840.452
CompuBench 1.5 Desktop - T-Rex (Frames/s)		1.76
CompuBench 1.5 Desktop - Video Composition (Frames/s)		53.903
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		265.302
3DMark Fire Strike - Graphics Score		0

Compare specifications (specs)

	AMD Radeon RX 550X	AMD Radeon HD 6990
Essentials
Architecture	GCN 4.0	TeraScale 3
Code name	Lexa	Antilles
Design	Radeon RX 500X Series
GCN generation	4th Gen
Launch date	3 April 2018	8 March 2011
Place in performance rating	628	626
Type	Desktop, Laptop	Desktop
Launch price (MSRP)		$699
Price now		$159.99
Value for money (0-100)		27.81
Technical info
Boost clock speed	1287 MHz
Compute units	8/10
Core clock speed	1100 MHz	830 MHz
Floating-point performance	1.65 TFLOPs	2x 2,549.8 gflops
Manufacturing process technology	14 nm	40 nm
Pipelines	512	2x 1536
Pixel fill rate	20.60 GP/s
Render output units	16
Stream Processors	512/640
Texture fill rate	51.48 GTexel/s	2x 79.7 GTexel / s billion / sec
Texture Units	40
Thermal Design Power (TDP)	50 Watt	375 Watt
Transistor count	2,200 million	2,640 million
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 4x mini-DisplayPort
DisplayPort support
Dual-link DVI support
HDMI
VGA
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Length	145 mm	295 mm
Supplementary power connectors	None	2x 8-pin
API support
DirectX	12	11.2 (11_0)
OpenGL	4.5	4.4
Vulkan
Memory
Maximum RAM amount	4 GB	2x 2 GB
Memory bandwidth	112 GB/s	2x 160.0 GB / s
Memory bus width	128 bit	2x 256 Bit
Memory clock speed	7000 MHz	5000 MHz
Memory type	GDDR5	GDDR5
Technologies
4K H264 Decode
4K H264 Encode
AMD Radeon™ Chill
AMD Radeon™ ReLive
AppAcceleration
FreeSync
H265/HEVC Decode
H265/HEVC Encode
HDMI 4K Support