AMD Radeon HD 7870 XT vs NVIDIA GeForce GT 545

VS

AMD Radeon HD 7870 XT

NVIDIA GeForce GT 545

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 1536MB VRAM GeForce GT 545 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Released 1 years and 6 months late

Boost Clock975MHz

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (192.0GB/s vs 38.40GB/s)

1392 additional rendering cores

NVIDIA GeForce GT 545 's Advantages

Lower TDP (70W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +621%

2.995 TFLOPS

GeForce GT 545

0.415 TFLOPS

Radeon HD 7870 XT

VS

GeForce GT 545

Graphics Card

Nov 2012

Release Date

May 2011

Southern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

192bit

192.0GB/s

Bandwidth

38.40GB/s

Render Config

24

Compute Units

-

SM Count

3

1536

Shading Units

144

96

TMUs

24

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

4.320 GPixel/s

93.60 GTexel/s

Texture Rate

17.28 GTexel/s

-

2.995 TFLOPS

FP32 (float)

414.7 GFLOPS

748.8 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

185W

TDP

70W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GF116

Tahiti LE (215-0821122)

GPU Variant

-

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.17 billion

352 mm²

Die Size

238 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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