AMD Radeon HD 6790 vs NVIDIA GeForce GTX 780 Ti Engineering Sample

VS

AMD Radeon HD 6790

NVIDIA GeForce GTX 780 Ti Engineering Sample

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 3GB VRAM GeForce GTX 780 Ti Engineering Sample to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Lower TDP (150W vs 250W)

NVIDIA GeForce GTX 780 Ti Engineering Sample 's Advantages

Boost Clock928MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (336.6GB/s vs 134.4GB/s)

2080 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6790

1.344 TFLOPS

GeForce GTX 780 Ti Engineering Sample +297%

5.345 TFLOPS

Radeon HD 6790

VS

GeForce GTX 780 Ti Engineering Sample

Graphics Card

Apr 2011

Release Date

Unknown

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

1050 MHz

Memory Clock

1753 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

336.6GB/s

Render Config

10

Compute Units

-

800

Shading Units

2880

40

TMUs

240

16

ROPs

48

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

55.68 GPixel/s

33.60 GTexel/s

Texture Rate

222.7 GTexel/s

-

1344 GFLOPS

FP32 (float)

5.345 TFLOPS

-

FP64 (double)

222.7 GFLOPS

Board Design

150W

TDP

250W

450 W

Suggested PSU

600 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

GK180

Barts LE (215-0798002)

GPU Variant

GK180-425-A1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

7.08 billion

255 mm²

Die Size

561 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.2.175

-

CUDA

3.5

5.0

Shader Model

5.1

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