AMD Radeon HD 7950M vs AMD Radeon HD 7770M

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M 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 HD 7950M 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (128.0GB/s vs 64.00GB/s)

768 additional rendering cores

AMD Radeon HD 7770M 's Advantages

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7950M +159%

1.792 TFLOPS

Radeon HD 7770M

0.691 TFLOPS

Radeon HD 7950M

VS

Radeon HD 7770M

Graphics Card

Apr 2012

Release Date

Apr 2012

London

Generation

London

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

20

Compute Units

8

1280

Shading Units

512

80

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

22.40 GPixel/s

Pixel Rate

10.80 GPixel/s

56.00 GTexel/s

Texture Rate

21.60 GTexel/s

-

FP16 (half)

-

1.792 TFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Graphics Processor

Wimbledon

GPU Name

Chelsea

Wimbledon PRO

GPU Variant

Chelsea XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.5 billion

212 mm²

Die Size

123 mm²

Board Design

75W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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