AMD Radeon RX 7800M vs AMD Radeon R7 M340

VS

AMD Radeon RX 7800M

AMD Radeon R7 M340

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 7800M and 1024MB VRAM Radeon R7 M340 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800M 's Advantages

Released 8 years and 9 months late

Boost Clock has increased by 200% (2145MHz vs 715MHz)

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (432GB/s vs 16.00GB/s)

3456 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7800M +6433%

35.87 TFLOPS

Radeon R7 M340

0.549 TFLOPS

Radeon RX 7800M

VS

Radeon R7 M340

Graphics Card

Sep 2024

Release Date

Dec 2015

Navi Mobile

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1825 MHz

Base Clock

620 MHz

2145 MHz

Boost Clock

715 MHz

2250 MHz

Memory Clock

1000 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

64bit

432GB/s

Bandwidth

16.00GB/s

Render Config

60

Compute Units

6

-

3840

Shading Units

384

240

TMUs

24

96

ROPs

8

-

60

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

48 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

5.720 GPixel/s

560.4 GTexel/s

Texture Rate

17.16 GTexel/s

71.73 TFLOPS

FP16 (half)

-

35.87 TFLOPS

FP32 (float)

549.1 GFLOPS

1121 GFLOPS

FP64 (double)

34.32 GFLOPS

Board Design

180W

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Navi 32

GPU Name

Opal

Navi 32

GPU Variant

Opal PRO

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

0.95 billion

529 mm²

Die Size

77 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

-

6.7

Shader Model

6.5 (5.1)

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