AMD Radeon HD 7770 GHz Edition vs ATI Radeon HD 3870

VS

AMD Radeon HD 7770 GHz Edition ATI Radeon HD 3870

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 4 years and 3 months late

More VRAM (1024GB vs 512GB)

320 additional rendering cores

Lower TDP (80W vs 106W)

ATI Radeon HD 3870 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 72.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +157%

1.28 TFLOPS

Radeon HD 3870

0.497 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon HD 3870

Graphics Card

Feb 2012

Release Date

Nov 2007

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1125 MHz

Memory Clock

1126 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

72.06GB/s

Render Config

-

SM Count

-

10

Compute Units

4

640

Shading Units

320

40

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

16.00 GPixel/s

Pixel Rate

12.43 GPixel/s

40.00 GTexel/s

Texture Rate

12.43 GTexel/s

-

FP16 (half)

-

1280 GFLOPS

FP32 (float)

497.3 GFLOPS

80.00 GFLOPS

FP64 (double)

99.46 GFLOPS

Graphics Processor

Cape Verde

GPU Name

RV670

Cape Verde XT

GPU Variant

RV670 XT (215-0708005)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.666 billion

123 mm²

Die Size

192 mm²

Board Design

80W

TDP

106W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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