AMD Radeon HD 7870 XT vs NVIDIA GeForce GTX 970

VS

AMD Radeon HD 7870 XT

NVIDIA GeForce GTX 970

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 4GB VRAM GeForce GTX 970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 970 's Advantages

Released 1 years and 10 months late

Boost Clock has increased by 21% (1178MHz vs 975MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.4GB/s vs 192.0GB/s)

128 additional rendering cores

Lower TDP (148W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT

2.995 TFLOPS

GeForce GTX 970 +30%

3.92 TFLOPS

Radeon HD 7870 XT

VS

GeForce GTX 970

Graphics Card

Nov 2012

Release Date

Sep 2014

Southern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

1050 MHz

975 MHz

Boost Clock

1178 MHz

1500 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

192.0GB/s

Bandwidth

224.4GB/s

Render Config

24

Compute Units

-

1536

Shading Units

1664

96

TMUs

104

32

ROPs

56

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

65.97 GPixel/s

93.60 GTexel/s

Texture Rate

122.5 GTexel/s

-

2.995 TFLOPS

FP32 (float)

3.920 TFLOPS

748.8 GFLOPS

FP64 (double)

122.5 GFLOPS

Board Design

185W

TDP

148W

450 W

Suggested PSU

300 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

GM204

Tahiti LE (215-0821122)

GPU Variant

GM204-200-A1

GCN 1.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

5.2 billion

352 mm²

Die Size

398 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

5.1

Shader Model

6.4

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