AMD Radeon R5 M320 vs NVIDIA GeForce GT 645M

VS

AMD Radeon R5 M320

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R5 M320 and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M320 's Advantages

Released 2 years and 7 months late

Boost Clock855MHz

More VRAM (4GB vs 2GB)

NVIDIA GeForce GT 645M 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 16.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M320

0.547 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon R5 M320

VS

GeForce GT 645M

Graphics Card

May 2015

Release Date

Oct 2012

Gem System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

780 MHz

Base Clock

-

855 MHz

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

28.80GB/s

Render Config

5

Compute Units

-

320

Shading Units

384

20

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.840 GPixel/s

Pixel Rate

5.672 GPixel/s

17.10 GTexel/s

Texture Rate

22.69 GTexel/s

-

547.2 GFLOPS

FP32 (float)

544.5 GFLOPS

34.20 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Jet

GPU Name

GK107

Jet PRO (216-0856040)

GPU Variant

N13P-GS

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

1.27 billion

56 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.0

6.5 (5.1)

Shader Model

5.1

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