Radeon RX 640 VS Radeon RX 6600 XT

Explore the complete details of Radeon RX 640 VS Radeon RX 6600 XT, including specs, performance benchmarks

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The Radeon RX 640 GPU by AMD. features a GCN 4.0 (2016−2020) architecture. with 640 CUDA cores. and a boost clock of 1218 MHz MHz. It offers GDDR5 memory with 2 GB GB capacity and a 64 Bit-bit interface. delivering a bandwidth of 48 GB/s GB/s. With a power consumption (TDP) of 50W.

	Radeon RX 640	Radeon RX 6600 XT
Manufacturer	AMD	AMD
Ranking	645	117
Popularity Rank	not in top-100	70
Architecture	GCN 4.0 (2016−2020)	RDNA 2.0 (2020−2025)
GPU code name	Polaris 23	Navi 23
Market Segmente	Laptop	Desktop
Length - Width	N/A - N/A	190 mm - 2-slot
Release Date	13 May 2019	30 July 2021
Performance Details on clock speeds, cores, and floating-point processing power of Radeon RX 640 VS Radeon RX 6600 XT.
Core Clock Speed	1082 MHz	1968 MHz
Boost Clock Speed	1218 MHz	2589 MHz
Floating Point Processing Power	1.559 TFLOPS	10.6 TFLOPS
No of Transistors	2,200 million	11,060 million
CUDA Cores	640	2048
Ray Tracing Cores	N/A	32
Tensor Cores	N/A	N/A
Texture Fill Rate	48.72	331.4
ROPs	16	64

Radeon RX 640

Radeon RX 6600 XT

Manufacturer

AMD

Ranking

645

117

Popularity Rank

not in top-100

Architecture

GCN 4.0 (2016−2020)

RDNA 2.0 (2020−2025)

GPU code name

Polaris 23

Navi 23

Market Segmente

Laptop

Desktop

Length - Width

N/A - N/A

190 mm - 2-slot

Release Date

13 May 2019

30 July 2021

Performance

Details on clock speeds, cores, and floating-point processing power of Radeon RX 640 VS Radeon RX 6600 XT.

Core Clock Speed

1082 MHz

1968 MHz

Boost Clock Speed

1218 MHz

2589 MHz

Floating Point Processing Power

1.559 TFLOPS

10.6 TFLOPS

No of Transistors

2,200 million

11,060 million

CUDA Cores

640

2048

Ray Tracing Cores

N/A

Tensor Cores

N/A

Texture Fill Rate

48.72

331.4

ROPs

	Radeon RX 640	Radeon RX 6600 XT
Interface	PCIe 3.0 x8	PCIe 4.0 x8
Display Connectors	No outputs	1x HDMI, 2x DisplayPort
HDMI	N/A	1
DirectX	N/A	12.0 Ultimate (12_2)
Shader Model	N/A	6.5
OpenGL	N/A	4.6
OpenCL	N/A	2.1
Vulkan	N/A	1.2
CUDA	N/A	N/A
DLSS	N/A	N/A
TMUs	40	128
Memory & Bus Information on memory type, capacity, and bandwidth to evaluate data processing power.
Memory Type	GDDR5	GDDR6
Maximum RAM	2 GB	8 GB
Memory Bus Width	64 Bit	128 Bit
Memory Clock Speed	1500 MHz	2000 MHz
Memory Bandwidth	48 GB/s GB/s	256.0 GB/s GB/s
Resizable BAR	N/A	1
Power & Efficiency Power consumption, efficiency, and additional power requirements.
Power Consumption (TDP)	50 W	160 W
Power Efficiency	7.65	18.55
Manufacturing Process	14 nm	7 nm
Supplementary Power Connectors	None	1x 8-pin

Radeon RX 640

Radeon RX 6600 XT

Interface

PCIe 3.0 x8

PCIe 4.0 x8

Display Connectors

No outputs

1x HDMI, 2x DisplayPort

HDMI

N/A

DirectX

N/A

12.0 Ultimate (12_2)

Shader Model

N/A

6.5

OpenGL

N/A

4.6

OpenCL

N/A

2.1

Vulkan

N/A

1.2

CUDA

N/A

DLSS

N/A

TMUs

128

Memory & Bus

Information on memory type, capacity, and bandwidth to evaluate data processing power.

Memory Type

GDDR5

GDDR6

Maximum RAM

2 GB

8 GB

Memory Bus Width

64 Bit

128 Bit

Memory Clock Speed

1500 MHz

2000 MHz

Memory Bandwidth

48 GB/s GB/s

256.0 GB/s GB/s

Resizable BAR

N/A

Power & Efficiency

Power consumption, efficiency, and additional power requirements.

Power Consumption (TDP)

50 W

160 W

Power Efficiency

7.65

18.55

Manufacturing Process

14 nm

7 nm

Supplementary Power Connectors

None

1x 8-pin

Radeon RX 640 VS Radeon RX 6600 XT

Benchmark Performance

Radeon RX 640

Radeon RX 6600 XT

Content

General Information

Performance

Performance Score Comparison

Connectivity & API Support

Memory & Bus

Power & Efficiency

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