AMD Radeon RX 640 Mobile vs NVIDIA GeForce Go 6800 Ultra

VS

AMD Radeon RX 640 Mobile

NVIDIA GeForce Go 6800 Ultra

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile 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 RX 640 Mobile 's Advantages

Released 14 years and 3 months late

Boost Clock1218MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (48.00GB/s vs 38.40GB/s)

640 additional rendering cores

Lower TDP (50W vs 89W)

Score

Radeon RX 640 Mobile

VS

GeForce Go 6800 Ultra

Graphics Card

May 2019

Release Date

Feb 2005

Mobility Radeon

Generation

GeForce Go 6

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1500 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

38.40GB/s

Render Config

10

Compute Units

-

640

Shading Units

-

40

TMUs

12

16

ROPs

8

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

3.600 GPixel/s

48.72 GTexel/s

Texture Rate

5.400 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

-

97.44 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

89W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

NV41

Polaris 23 XT

GPU Variant

GO6800 U

GCN 4.0

Architecture

Curie

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

130 nm

2.2 billion

Transistors

0.19 billion

103 mm²

Die Size

225 mm²

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

Vulkan

N/A

-

6.4

Shader Model

3.0

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