AMD Radeon R7 265 vs ATI Radeon HD 4770

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265 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 265 's Advantages

Released 4 years and 10 months late

Boost Clock925MHz

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

384 additional rendering cores

ATI Radeon HD 4770 's Advantages

Lower TDP (80W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R7 265 +97%

1.894 TFLOPS

Radeon HD 4770

0.96 TFLOPS

Radeon R7 265

VS

Radeon HD 4770

Graphics Card

Feb 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

-

SM Count

-

16

Compute Units

8

1024

Shading Units

640

64

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

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

59.20 GTexel/s

Texture Rate

24.00 GTexel/s

-

FP16 (half)

-

1.894 TFLOPS

FP32 (float)

960.0 GFLOPS

118.4 GFLOPS

FP64 (double)

192.0 GFLOPS

Graphics Processor

Pitcairn

GPU Name

RV740

Pitcairn PRO (215-0828062)

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

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 Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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