AMD Radeon HD 7950 Mac Edition vs ATI Radeon HD 3450 PCI

VS

AMD Radeon HD 7950 Mac Edition ATI Radeon HD 3450 PCI

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 512MB VRAM Radeon HD 3450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Mac Edition 's Advantages

Released 5 years and 2 months late

Larger VRAM bandwidth (240.0GB/s vs 6.400GB/s)

1752 additional rendering cores

ATI Radeon HD 3450 PCI 's Advantages

Lower TDP (25W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition +5872%

2.867 TFLOPS

Radeon HD 3450 PCI

0.048 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon HD 3450 PCI

Graphics Card

Mar 2013

Release Date

Jan 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCI

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

400 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

-

28

Compute Units

2

1792

Shading Units

40

112

TMUs

4

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

64 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.400 GPixel/s

89.60 GTexel/s

Texture Rate

2.400 GTexel/s

-

FP16 (half)

-

2.867 TFLOPS

FP32 (float)

48.00 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

RV620

Tahiti PRO (215-0821056)

GPU Variant

RV620 LE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.181 billion

352 mm²

Die Size

67 mm²

Board Design

200W

TDP

25W

550 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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