AMD Radeon R7 M340 vs AMD Radeon HD 7490M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R7 M340 and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M340 's Advantages

Released 3 years and 11 months late

Boost Clock715MHz

224 additional rendering cores

AMD Radeon HD 7490M 's Advantages

Larger VRAM bandwidth (30.40GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon R7 M340 +114%

0.549 TFLOPS

Radeon HD 7490M

0.256 TFLOPS

Radeon R7 M340

VS

Radeon HD 7490M

Graphics Card

Dec 2015

Release Date

Jan 2012

Gem System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

620 MHz

Base Clock

-

715 MHz

Boost Clock

-

1000 MHz

Memory Clock

950 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

16.00GB/s

Bandwidth

30.40GB/s

Render Config

-

SM Count

-

6

Compute Units

2

384

Shading Units

160

24

TMUs

8

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

5.720 GPixel/s

Pixel Rate

3.200 GPixel/s

17.16 GTexel/s

Texture Rate

6.400 GTexel/s

-

FP16 (half)

-

549.1 GFLOPS

FP32 (float)

256.0 GFLOPS

34.32 GFLOPS

FP64 (double)

-

Graphics Processor

Opal

GPU Name

Seymour

Opal PRO

GPU Variant

Seymour XTX (216-0810005)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.37 billion

77 mm²

Die Size

67 mm²

Board Design

Unknown

TDP

9W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

5.0

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