AMD Radeon R7 265 vs AMD Radeon HD 7770 GHz Edition

VS

AMD Radeon R7 265

AMD Radeon HD 7770 GHz Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265 and 1024MB VRAM Radeon HD 7770 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265 's Advantages

Released 2 years late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 72.00GB/s)

384 additional rendering cores

AMD Radeon HD 7770 GHz Edition 's Advantages

Lower TDP (80W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R7 265 +47%

1.894 TFLOPS

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon R7 265

VS

Radeon HD 7770 GHz Edition

Graphics Card

Feb 2014

Release Date

Feb 2012

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

179.2GB/s

Bandwidth

72.00GB/s

Render Config

16

Compute Units

10

-

1024

Shading Units

640

64

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

16.00 GPixel/s

59.20 GTexel/s

Texture Rate

40.00 GTexel/s

-

1.894 TFLOPS

FP32 (float)

1280 GFLOPS

118.4 GFLOPS

FP64 (double)

80.00 GFLOPS

Board Design

150W

TDP

80W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x 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

Pitcairn

GPU Name

Cape Verde

Pitcairn PRO (215-0828062)

GPU Variant

Cape Verde 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

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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