GeForce GTX 780 vs Radeon HD 7870 XT

VS

NVIDIA GeForce GTX 780

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

GeForce GTX 780 's Advantages

Released 6 months late

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.4GB/s vs 192.0GB/s)

768 additional rendering cores

Radeon HD 7870 XT 's Advantages

Boost Clock has increased by 8% (975MHz vs 902MHz)

Lower TDP (185W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 +38%

4156

Radeon HD 7870 XT

2995

GeForce GTX 780

VS

Radeon HD 7870 XT

Graphics Card

May 2013

Release Date

Nov 2012

GeForce 700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

863 MHz

Base Clock

925 MHz

902 MHz

Boost Clock

975 MHz

1502 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.4GB/s

Bandwidth

192.0GB/s

Render Config

-

Compute Units

24

2304

Shading Units

1536

192

TMUs

96

48

ROPs

32

16 KB (per SMX)

L1 Cache

16 KB (per CU)

1536 KB

L2 Cache

512 KB

Theoretical Performance

43.30 GPixel/s

Pixel Rate

31.20 GPixel/s

173.2 GTexel/s

Texture Rate

93.60 GTexel/s

4.156 TFLOPS

FP32 (float)

2.995 TFLOPS

173.2 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

250W

TDP

185W

600 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GK110

GPU Name

Tahiti

GK110-300-A1

GPU Variant

Tahiti LE (215-0821122)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

4.313 billion

561 mm²

Die Size

352 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.5

CUDA

-

5.1

Shader Model

5.1

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