AMD Radeon 520 Mobile vs AMD Radeon HD 6990M

VS

AMD Radeon 520 Mobile

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 2GB VRAM Radeon 520 Mobile and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 520 Mobile 's Advantages

Released 5 years and 9 months late

Lower TDP (50W vs 100W)

AMD Radeon HD 6990M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 16.00GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 520 Mobile

0.659 TFLOPS

Radeon HD 6990M +143%

1.602 TFLOPS

Radeon 520 Mobile

VS

Radeon HD 6990M

Graphics Card

Apr 2017

Release Date

Jul 2011

Mobility Radeon

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

16.00GB/s

Bandwidth

115.2GB/s

Render Config

5

Compute Units

14

-

320

Shading Units

1120

20

TMUs

56

8

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

8.240 GPixel/s

Pixel Rate

22.88 GPixel/s

20.60 GTexel/s

Texture Rate

40.04 GTexel/s

-

659.2 GFLOPS

FP32 (float)

1.602 TFLOPS

41.20 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Banks

GPU Name

Blackcomb

Banks PRO (216-0568010)

GPU Variant

Blackcomb XTX (216-0811030)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

1.7 billion

56 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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