AMD Radeon RX 640 Mobile vs AMD Radeon RX 7600M XT

VS

AMD Radeon RX 640 Mobile AMD Radeon RX 7600M XT

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 8GB VRAM Radeon RX 7600M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Lower TDP (50W vs 120W)

AMD Radeon RX 7600M XT 's Advantages

Released 3 years and 8 months late

Boost Clock has increased by 103% (2469MHz vs 1218MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 48.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon RX 7600M XT +1197%

20.23 TFLOPS

Radeon RX 640 Mobile

VS

Radeon RX 7600M XT

Graphics Card

May 2019

Release Date

Jan 2023

Mobility Radeon

Generation

Navi Mobile

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1082 MHz

Base Clock

1280 MHz

1218 MHz

Boost Clock

2469 MHz

1500 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

10

Compute Units

32

640

Shading Units

2048

40

TMUs

128

16

ROPs

64

-

Tensor Cores

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

2 MB

Theoretical Performance

19.49 GPixel/s

Pixel Rate

158.0 GPixel/s

48.72 GTexel/s

Texture Rate

316.0 GTexel/s

1.559 TFLOPS

FP16 (half)

40.45 TFLOPS

1.559 TFLOPS

FP32 (float)

20.23 TFLOPS

97.44 GFLOPS

FP64 (double)

632.1 GFLOPS

Graphics Processor

Polaris 23

GPU Name

Navi 33

Polaris 23 XT

GPU Variant

Navi 33 XTM

GCN 4.0

Architecture

RDNA 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

6 nm

2.2 billion

Transistors

13.3 billion

103 mm²

Die Size

204 mm²

Board Design

50W

TDP

120W

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

6.4

Shader Model

6.7

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