AMD Radeon R5 M255 vs AMD Radeon HD 7770M

VS

AMD Radeon R5 M255

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 1024MB VRAM Radeon HD 7770M 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 6 months late

Boost Clock940MHz

More VRAM (2GB vs 1024GB)

AMD Radeon HD 7770M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 32.00GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255 +4%

0.721 TFLOPS

Radeon HD 7770M

0.691 TFLOPS

Radeon R5 M255

VS

Radeon HD 7770M

Graphics Card

Oct 2014

Release Date

Apr 2012

Gem System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

32.00GB/s

Bandwidth

64.00GB/s

Render Config

6

Compute Units

8

-

384

Shading Units

512

24

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

10.80 GPixel/s

22.56 GTexel/s

Texture Rate

21.60 GTexel/s

721.9 GFLOPS

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

691.2 GFLOPS

45.12 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

Chelsea

Topaz PRO (216-0858030)

GPU Variant

Chelsea XT

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

1.5 billion

125 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5

Shader Model

5.1

Related GPU Comparisons

1

AMD Radeon R5 M255 vs ATI Mobility Radeon HD 4330

2

AMD Radeon R5 M255 vs ATI Mobility Radeon HD 5430

3

AMD Radeon R5 M255 vs NVIDIA GeForce GTS 150M

4

AMD Radeon R5 M255 vs AMD Radeon R9 M270X

5

AMD Radeon R5 M255 vs AMD Radeon HD 8950M

6

AMD Radeon R5 M255 vs Intel Arc A350M

7

AMD Radeon R5 M255 vs NVIDIA NVS 5400M

8

AMD Radeon R5 M255 vs NVIDIA GeForce RTX 3070 Ti Mobile

9

AMD Radeon R5 M255 vs NVIDIA GeForce RTX 2070 SUPER Max Q

10

AMD Radeon R5 M255 vs NVIDIA GeForce GTX 670M

Related News

1

CXMT Reportedly Achieves 80% Yield in DDR5 Production

2

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

3

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

4

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

5

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

6

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

7

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

8

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

9

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

10

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage