AMD Radeon HD 7770 GHz Edition vs AMD Radeon R7 250X

VS

AMD Radeon HD 7770 GHz Edition

AMD Radeon R7 250X

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 1024MB VRAM Radeon R7 250X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250X 's Advantages

Released 2 years late

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +5%

1.28 TFLOPS

Radeon R7 250X

1.216 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon R7 250X

Graphics Card

Feb 2012

Release Date

Feb 2014

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

72.00GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

15.20 GPixel/s

40.00 GTexel/s

Texture Rate

38.00 GTexel/s

-

1280 GFLOPS

FP32 (float)

1216 GFLOPS

80.00 GFLOPS

FP64 (double)

76.00 GFLOPS

Board Design

80W

TDP

80W

250 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

Cape Verde

Cape Verde XT

GPU Variant

Cape Verde XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.5 billion

123 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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