AMD Radeon R5 M255 vs NVIDIA GeForce GTX 670M

VS

AMD Radeon R5 M255

NVIDIA GeForce GTX 670M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 1536MB VRAM GeForce GTX 670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages

Released 2 years and 7 months late

Boost Clock940MHz

More VRAM (2GB vs 1536GB)

48 additional rendering cores

NVIDIA GeForce GTX 670M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

GeForce GTX 670M +11%

0.804 TFLOPS

Radeon R5 M255

VS

GeForce GTX 670M

Graphics Card

Oct 2014

Release Date

Mar 2012

Gem System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

750 MHz

Memory

2GB

Memory Size

1536MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

32.00GB/s

Bandwidth

72.00GB/s

Render Config

6

Compute Units

-

SM Count

7

384

Shading Units

336

24

TMUs

56

8

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

8.372 GPixel/s

22.56 GTexel/s

Texture Rate

33.49 GTexel/s

721.9 GFLOPS

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

803.7 GFLOPS

45.12 GFLOPS

FP64 (double)

66.98 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

GF114

Topaz PRO (216-0858030)

GPU Variant

N13E-GS1-LP-A1

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

1.95 billion

125 mm²

Die Size

332 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

2.1

6.5

Shader Model

5.1

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