AMD Radeon HD 7870 XT vs AMD Radeon RX Vega 64 Liquid Cooling

VS

AMD Radeon HD 7870 XT

AMD Radeon RX Vega 64 Liquid Cooling

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 8GB VRAM Radeon RX Vega 64 Liquid Cooling to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 345W)

AMD Radeon RX Vega 64 Liquid Cooling 's Advantages

Released 4 years and 9 months late

Boost Clock has increased by 72% (1677MHz vs 975MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (483.8GB/s vs 192.0GB/s)

2560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT

2.995 TFLOPS

Radeon RX Vega 64 Liquid Cooling +358%

13.74 TFLOPS

Radeon HD 7870 XT

VS

Radeon RX Vega 64 Liquid Cooling

Graphics Card

Nov 2012

Release Date

Aug 2017

Southern Islands

Generation

Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

1406 MHz

975 MHz

Boost Clock

1677 MHz

1500 MHz

Memory Clock

945 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

HBM2

256bit

Memory Bus

2048bit

192.0GB/s

Bandwidth

483.8GB/s

Render Config

24

Compute Units

64

-

1536

Shading Units

4096

96

TMUs

256

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

4 MB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

107.3 GPixel/s

93.60 GTexel/s

Texture Rate

429.3 GTexel/s

-

FP16 (half)

27.48 TFLOPS

2.995 TFLOPS

FP32 (float)

13.74 TFLOPS

748.8 GFLOPS

FP64 (double)

858.6 GFLOPS

Board Design

185W

TDP

345W

450 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

Vega 10

Tahiti LE (215-0821122)

GPU Variant

Vega 10 XTX

GCN 1.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

12.5 billion

352 mm²

Die Size

495 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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