AMD Radeon R9 M275X vs AMD Radeon HD 6770M

VS

AMD Radeon R9 M275X

AMD Radeon HD 6770M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M275X and 1024MB VRAM Radeon HD 6770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M275X 's Advantages

Released 3 years late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 57.60GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M275X +70%

1.184 TFLOPS

Radeon HD 6770M

0.696 TFLOPS

Radeon R9 M275X

VS

Radeon HD 6770M

Graphics Card

Jan 2014

Release Date

Jan 2011

Gem System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

57.60GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

480

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

5.800 GPixel/s

37.00 GTexel/s

Texture Rate

17.40 GTexel/s

-

1184 GFLOPS

FP32 (float)

696.0 GFLOPS

74.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Venus

GPU Name

Whistler

Venus XTX (216-0846033)

GPU Variant

Whistler XT (216-0810001)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.716 billion

123 mm²

Die Size

104 mm²

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

-

6.5 (5.1)

Shader Model

5.0

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