ATI Radeon HD 4670 X2 vs AMD Radeon HD 7750

VS

ATI Radeon HD 4670 X2

AMD Radeon HD 7750

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 1024MB VRAM Radeon HD 7750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7750 's Advantages

Released 3 years and 5 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 22.40GB/s)

192 additional rendering cores

Lower TDP (55W vs 118W)

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2

0.48 TFLOPS

Radeon HD 7750 +70%

0.819 TFLOPS

Radeon HD 4670 X2

VS

Radeon HD 7750

Graphics Card

Sep 2008

Release Date

Feb 2012

Radeon R700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

700 MHz

Memory Clock

1125 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

22.40GB/s

Bandwidth

72.00GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

512

32

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

12.80 GPixel/s

24.00 GTexel/s

Texture Rate

25.60 GTexel/s

-

480.0 GFLOPS

FP32 (float)

819.2 GFLOPS

-

FP64 (double)

51.20 GFLOPS

Board Design

118W

TDP

55W

300 W

Suggested PSU

250 W

4x DVI

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Processor

RV730

GPU Name

Cape Verde

RV730 XT (215-0719047)

GPU Variant

Cape Verde PRO

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

1.5 billion

146 mm²

Die Size

123 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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