AMD Radeon R5 A255 vs NVIDIA GeForce Go 6800 Ultra

VS

AMD Radeon R5 A255 NVIDIA GeForce Go 6800 Ultra

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 256MB VRAM GeForce Go 6800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 8 years and 11 months late

Boost Clock940MHz

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 38.40GB/s)

384 additional rendering cores

Score

Radeon R5 A255

VS

GeForce Go 6800 Ultra

Graphics Card

Jan 2014

Release Date

Feb 2005

All-In-One

Generation

GeForce Go 6

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

38.40GB/s

Render Config

-

SM Count

-

6

Compute Units

-

384

Shading Units

-

24

TMUs

12

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

3.600 GPixel/s

22.56 GTexel/s

Texture Rate

5.400 GTexel/s

-

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

-

FP64 (double)

-

Graphics Processor

Topaz

GPU Name

NV41

Topaz PRO (216-0858030)

GPU Variant

GO6800 U

GCN 3.0

Architecture

Curie

TSMC

Foundry

TSMC

28 nm

Process Size

130 nm

1.55 billion

Transistors

0.19 billion

125 mm²

Die Size

225 mm²

Board Design

Unknown

TDP

89W

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.0 (full) 2.1 (partial)

2.1

OpenCL

N/A

1.2.170

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

3.0

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