AMD Radeon HD 7750 vs ATI Radeon HD 3850

VS

AMD Radeon HD 7750

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7750 and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7750 's Advantages

Released 4 years and 3 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 53.12GB/s)

192 additional rendering cores

Lower TDP (55W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7750 +91%

0.819 TFLOPS

Radeon HD 3850

0.428 TFLOPS

Radeon HD 7750

VS

Radeon HD 3850

Graphics Card

Feb 2012

Release Date

Nov 2007

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

830 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

53.12GB/s

Render Config

8

Compute Units

4

-

512

Shading Units

320

32

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

10.69 GPixel/s

25.60 GTexel/s

Texture Rate

10.69 GTexel/s

-

819.2 GFLOPS

FP32 (float)

427.5 GFLOPS

51.20 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

55W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

RV670

Cape Verde PRO

GPU Variant

RV670 PRO (215-0708003)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.666 billion

123 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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