ATI Radeon HD 3750 vs AMD Radeon HD 7990

VS

ATI Radeon HD 3750

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3750 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3750 's Advantages

Lower TDP (65W vs 375W)

AMD Radeon HD 7990 's Advantages

Released 4 years and 7 months late

Boost Clock1000MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 22.18GB/s)

1928 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3750

0.191 TFLOPS

Radeon HD 7990 +2044%

4.096 TFLOPS

Radeon HD 3750

VS

Radeon HD 7990

Graphics Card

Sep 2008

Release Date

Apr 2013

Radeon R600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

693 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

22.18GB/s

Bandwidth

288.0GB/s

Render Config

3

Compute Units

32

-

120

Shading Units

2048

8

TMUs

128

4

ROPs

32

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

768 KB

-

Theoretical Performance

3.184 GPixel/s

Pixel Rate

32.00 GPixel/s

6.368 GTexel/s

Texture Rate

128.0 GTexel/s

-

191.0 GFLOPS

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Board Design

65W

TDP

375W

250 W

Suggested PSU

750 W

2x DVI 1x S-Video

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

RV635

GPU Name

Malta

RV635 PRO (215-0682008)

GPU Variant

Malta XT (215-0849026)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.378 billion

Transistors

4.313 billion

135 mm²

Die Size

365 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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