NVIDIA GeForce GTX 780 6 GB vs ATI Radeon HD 2950 XTX

VS

NVIDIA GeForce GTX 780 6 GB

ATI Radeon HD 2950 XTX

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 780 6 GB and 512MB VRAM Radeon HD 2950 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 6 GB 's Advantages

Boost Clock902MHz

More VRAM (6GB vs 512GB)

Larger VRAM bandwidth (288.4GB/s vs 72.06GB/s)

1984 additional rendering cores

ATI Radeon HD 2950 XTX 's Advantages

Lower TDP (110W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 6 GB +736%

4.156 TFLOPS

Radeon HD 2950 XTX

0.497 TFLOPS

GeForce GTX 780 6 GB

VS

Radeon HD 2950 XTX

Graphics Card

Sep 2013

Release Date

Unknown

GeForce 700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

1126 MHz

Memory

6GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

384bit

Memory Bus

256bit

288.4GB/s

Bandwidth

72.06GB/s

Render Config

-

Compute Units

4

-

2304

Shading Units

320

192

TMUs

16

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

12.43 GPixel/s

173.2 GTexel/s

Texture Rate

12.43 GTexel/s

-

4.156 TFLOPS

FP32 (float)

497.3 GFLOPS

173.2 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

250W

TDP

110W

600 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

GK110B

GPU Name

RV670

GK110-301-B1

GPU Variant

RV670 XTX (215-0708004)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

7.08 billion

Transistors

0.666 billion

561 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

4.1

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