NVIDIA GeForce RTX 3070 vs AMD Radeon HD 7870 XT

VS

NVIDIA GeForce RTX 3070

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 3070 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3070 's Advantages

Released 7 years and 10 months late

Boost Clock has increased by 77% (1725MHz vs 975MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 192.0GB/s)

4352 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 220W)

Score

Benchmark

FP32 (float)

GeForce RTX 3070 +578%

20.31 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

GeForce RTX 3070

VS

Radeon HD 7870 XT

Graphics Card

Sep 2020

Release Date

Nov 2012

GeForce 30

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1500 MHz

Base Clock

925 MHz

1725 MHz

Boost Clock

975 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

192.0GB/s

Render Config

-

Compute Units

24

46

SM Count

-

5888

Shading Units

1536

184

TMUs

96

ROPs

32

184

Tensor Cores

-

46

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

165.6 GPixel/s

Pixel Rate

31.20 GPixel/s

317.4 GTexel/s

Texture Rate

93.60 GTexel/s

20.31 TFLOPS

FP16 (half)

-

20.31 TFLOPS

FP32 (float)

2.995 TFLOPS

317.4 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

220W

TDP

185W

550 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 12-pin

Power Connectors

2x 6-pin

Graphics Processor

GA104

GPU Name

Tahiti

GA104-300-A1

GPU Variant

Tahiti LE (215-0821122)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

4.313 billion

392 mm²

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

5.1

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