AMD Radeon RX 640 vs AMD Radeon HD 6450A

Comparative analysis of AMD Radeon RX 640 and AMD Radeon HD 6450A 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: GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), Geekbench - OpenCL, PassMark - G2D Mark, PassMark - G3D Mark.

AMD Radeon RX 640

AMD Radeon HD 6450A

Differences

Reasons to consider the AMD Radeon RX 640

Videocard is newer: launch date 8 year(s) 1 month(s) later
Around 73% higher core clock speed: 1082 MHz vs 625 MHz
7796x more texture fill rate: 38.98 GTexel/s vs 5 GTexel / s
3.2x more pipelines: 512 vs 160
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 40 nm
4x more maximum memory size: 2 GB vs 512 MB
Around 64% higher memory clock speed: 1750 MHz (7000 MHz effective) vs 1066 MHz
Around 64% better performance in PassMark - G2D Mark: 342 vs 208
7.8x better performance in PassMark - G3D Mark: 2017 vs 260

Specifications (specs)
Launch date	13 May 2019 vs 7 April 2011
Core clock speed	1082 MHz vs 625 MHz
Texture fill rate	38.98 GTexel/s vs 5 GTexel / s
Pipelines	512 vs 160
Manufacturing process technology	14 nm vs 40 nm
Maximum memory size	2 GB vs 512 MB
Memory clock speed	1750 MHz (7000 MHz effective) vs 1066 MHz
Benchmarks
PassMark - G2D Mark	342 vs 208
PassMark - G3D Mark	2017 vs 260

Reasons to consider the AMD Radeon HD 6450A

2x lower typical power consumption: 25 Watt vs 50 Watt

Thermal Design Power (TDP)	25 Watt vs 50 Watt

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: AMD Radeon HD 6450A

PassMark - G2D Mark

GPU 1

GPU 2

342

208

PassMark - G3D Mark

GPU 1

GPU 2

2017

260

Name	AMD Radeon RX 640	AMD Radeon HD 6450A
GFXBench 4.0 - Manhattan (Frames)	1769
GFXBench 4.0 - Manhattan (Fps)	1769
GFXBench 4.0 - T-Rex (Frames)	2775
GFXBench 4.0 - T-Rex (Fps)	2775
GFXBench 4.0 - Car Chase Offscreen (Frames)	3278
GFXBench 4.0 - Car Chase Offscreen (Fps)	3278
Geekbench - OpenCL	11376
PassMark - G2D Mark	342	208
PassMark - G3D Mark	2017	260

Compare specifications (specs)

	AMD Radeon RX 640	AMD Radeon HD 6450A
Essentials
Architecture	GCN 4.0	TeraScale 2
Code name	Arctic Islands	Caicos
Launch date	13 May 2019	7 April 2011
Place in performance rating	808	806
Type		Desktop
Technical info
Boost clock speed	1218 MHz
Compute units	8
Core clock speed	1082 MHz	625 MHz
Manufacturing process technology	14 nm	40 nm
Peak Double Precision (FP64) Performance	77.95 GFLOPS
Peak Half Precision (FP16) Performance	1247 GFLOPS
Peak Single Precision (FP32) Performance	1247 GFLOPS
Pipelines	512	160
Pixel fill rate	19.49 GPixel/s
Texture fill rate	38.98 GTexel/s	5 GTexel / s
Thermal Design Power (TDP)	50 Watt	25 Watt
Transistor count	2200 million	370 million
Floating-point performance		200 gflops
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	No outputs
DisplayPort support
HDMI
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	MXM-A (3.0)
Length	5.7 inches (145 mm)
Recommended system power (PSU)	350 Watt
Supplementary power connectors	None
Width	Dual-slot
API support
DirectX	12	11.2 (11_0)
OpenCL	2.0
OpenGL	4.6	4.4
Shader Model	6.4
Vulkan
Memory
Maximum RAM amount	2 GB	512 MB
Memory bandwidth	112.0 GB/s	8.53 GB / s
Memory bus width	128 bit	64 Bit
Memory clock speed	1750 MHz (7000 MHz effective)	1066 MHz
Memory type	GDDR5	DDR3
Technologies
Unified Video Decoder (UVD)
Video Code Engine (VCE)