AMD Radeon HD 6990 vs NVIDIA GeForce GTX 780 Ti

VS

AMD Radeon HD 6990 NVIDIA GeForce GTX 780 Ti

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 3GB VRAM GeForce GTX 780 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 Ti 's Advantages

Released 2 years and 8 months late

Boost Clock928MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 160.0GB/s)

1344 additional rendering cores

Lower TDP (250W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990

2.55 TFLOPS

GeForce GTX 780 Ti +109%

5.345 TFLOPS

Radeon HD 6990

VS

GeForce GTX 780 Ti

Graphics Card

Mar 2011

Release Date

Nov 2013

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

1250 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

160.0GB/s

Bandwidth

336.6GB/s

Render Config

-

SM Count

-

24

Compute Units

-

1536

Shading Units

2880

96

TMUs

240

32

ROPs

48

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

55.68 GPixel/s

79.68 GTexel/s

Texture Rate

222.7 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

5.345 TFLOPS

637.4 GFLOPS

FP64 (double)

222.7 GFLOPS

Graphics Processor

Antilles

GPU Name

GK110B

Antilles XT (215-0807027)

GPU Variant

GK110-425-B1

TeraScale 3

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

7.08 billion

389 mm²

Die Size

561 mm²

Board Design

375W

TDP

250W

750 W

Suggested PSU

600 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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