ATI Radeon HD 4770 vs AMD Radeon R7 250 OEM

VS

ATI Radeon HD 4770

AMD Radeon R7 250 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 2GB VRAM Radeon R7 250 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 32.00GB/s)

256 additional rendering cores

AMD Radeon R7 250 OEM 's Advantages

Released 4 years and 6 months late

Boost Clock1050MHz

More VRAM (2GB vs 512GB)

Lower TDP (65W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 4770 +19%

0.96 TFLOPS

Radeon R7 250 OEM

0.806 TFLOPS

Radeon HD 4770

VS

Radeon R7 250 OEM

Graphics Card

Apr 2009

Release Date

Oct 2013

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

800 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

32.00GB/s

Render Config

8

Compute Units

6

-

640

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

8.400 GPixel/s

24.00 GTexel/s

Texture Rate

25.20 GTexel/s

-

960.0 GFLOPS

FP32 (float)

806.4 GFLOPS

192.0 GFLOPS

FP64 (double)

50.40 GFLOPS

Board Design

80W

TDP

65W

250 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

Oland

RV740 XT (215-0727019)

GPU Variant

Oland XT (215-0837000)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.826 billion

Transistors

0.95 billion

137 mm²

Die Size

77 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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