AMD Radeon HD 7690M XT Rebrand vs AMD Radeon HD 7870M

VS

AMD Radeon HD 7690M XT Rebrand

AMD Radeon HD 7870M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7690M XT Rebrand and 2GB VRAM Radeon HD 7870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7690M XT Rebrand 's Advantages

Lower TDP (25W vs 45W)

AMD Radeon HD 7870M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (64.00GB/s vs 51.20GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7690M XT Rebrand

0.696 TFLOPS

Radeon HD 7870M +47%

1.024 TFLOPS

Radeon HD 7690M XT Rebrand

VS

Radeon HD 7870M

Graphics Card

Jan 2012

Release Date

Apr 2012

London

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

64.00GB/s

Render Config

6

Compute Units

10

-

480

Shading Units

640

24

TMUs

40

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

12.80 GPixel/s

17.40 GTexel/s

Texture Rate

32.00 GTexel/s

-

696.0 GFLOPS

FP32 (float)

1024 GFLOPS

-

FP64 (double)

64.00 GFLOPS

Board Design

25W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

Heathrow

Whistler XTX

GPU Variant

Heathrow XT (216-0835033)

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

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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