AMD Radeon HD 6770M vs AMD Radeon R9 M275X

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6770M and 2GB VRAM Radeon R9 M275X 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 1GB)

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

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770M

0.696 TFLOPS

Radeon R9 M275X +70%

1.184 TFLOPS

Radeon HD 6770M

VS

Radeon R9 M275X

Graphics Card

Jan 2011

Release Date

Jan 2014

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

900 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

57.60GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

6

Compute Units

10

480

Shading Units

640

24

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

5.800 GPixel/s

Pixel Rate

14.80 GPixel/s

17.40 GTexel/s

Texture Rate

37.00 GTexel/s

-

FP16 (half)

-

696.0 GFLOPS

FP32 (float)

1184 GFLOPS

-

FP64 (double)

74.00 GFLOPS

Graphics Processor

Whistler

GPU Name

Venus

Whistler XT (216-0810001)

GPU Variant

Venus XTX (216-0846033)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.5 billion

104 mm²

Die Size

123 mm²

Board Design

35W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

CUDA

-

5.0

Shader Model

6.5 (5.1)

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