NVIDIA GeForce GTX 970 vs ATI Radeon HD 4855

VS

NVIDIA GeForce GTX 970

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 970 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 970 's Advantages

Released 4 years and 8 months late

Boost Clock1178MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (224.4GB/s vs 115.2GB/s)

1024 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 148W)

Score

Benchmark

FP32 (float)

GeForce GTX 970 +432%

3.92 TFLOPS

Radeon HD 4855

0.736 TFLOPS

GeForce GTX 970

VS

Radeon HD 4855

Graphics Card

Sep 2014

Release Date

Jan 2010

GeForce 900

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1050 MHz

Base Clock

-

1178 MHz

Boost Clock

-

1753 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

224.4GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

8

-

1664

Shading Units

640

104

TMUs

32

56

ROPs

16

-

48 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

65.97 GPixel/s

Pixel Rate

9.200 GPixel/s

122.5 GTexel/s

Texture Rate

18.40 GTexel/s

-

3.920 TFLOPS

FP32 (float)

736.0 GFLOPS

122.5 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

148W

TDP

110W

300 W

Suggested PSU

300 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GM204

GPU Name

RV770

GM204-200-A1

GPU Variant

RV770 PRO (215-0669065)

Maxwell 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

5.2 billion

Transistors

0.956 billion

398 mm²

Die Size

256 mm²

Graphics Features

12 (12_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.2

CUDA

-

6.4

Shader Model

4.1

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