AMD Radeon HD 7870 XT vs NVIDIA GeForce GT 545 OEM

VS

AMD Radeon HD 7870 XT

NVIDIA GeForce GT 545 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 1024MB VRAM GeForce GT 545 OEM 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 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 64.00GB/s)

1392 additional rendering cores

NVIDIA GeForce GT 545 OEM 's Advantages

Lower TDP (105W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +497%

2.995 TFLOPS

GeForce GT 545 OEM

0.501 TFLOPS

Radeon HD 7870 XT

VS

GeForce GT 545 OEM

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

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

64.00GB/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

256 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

5.226 GPixel/s

93.60 GTexel/s

Texture Rate

20.90 GTexel/s

-

2.995 TFLOPS

FP32 (float)

501.4 GFLOPS

748.8 GFLOPS

FP64 (double)

41.78 GFLOPS

Board Design

185W

TDP

105W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

GF116

Tahiti LE (215-0821122)

GPU Variant

GF116-110-KA-A1

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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