AMD Radeon R7 265X OEM vs ATI Radeon HD 4770

VS

AMD Radeon R7 265X OEM

ATI Radeon HD 4770

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM and 512MB VRAM Radeon HD 4770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265X OEM 's Advantages

Released 5 years and 4 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 51.20GB/s)

640 additional rendering cores

ATI Radeon HD 4770 's Advantages

Lower TDP (80W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R7 265X OEM +146%

2.368 TFLOPS

Radeon HD 4770

0.96 TFLOPS

Radeon R7 265X OEM

VS

Radeon HD 4770

Graphics Card

Aug 2014

Release Date

Apr 2009

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

179.2GB/s

Bandwidth

51.20GB/s

Render Config

20

Compute Units

8

-

1280

Shading Units

640

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

12.00 GPixel/s

74.00 GTexel/s

Texture Rate

24.00 GTexel/s

-

2.368 TFLOPS

FP32 (float)

960.0 GFLOPS

148.0 GFLOPS

FP64 (double)

192.0 GFLOPS

Board Design

150W

TDP

80W

450 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Curacao

GPU Name

RV740

Curacao PRO (215-0848000)

GPU Variant

RV740 XT (215-0727019)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.826 billion

212 mm²

Die Size

137 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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