AMD Radeon R9 255 OEM vs NVIDIA GeForce GTX 780 Ti 6 GB

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GTX 780 Ti 6 GB

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 6GB VRAM GeForce GTX 780 Ti 6 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Boost Clock has increased by 0% (930MHz vs 928MHz)

Lower TDP (65W vs 250W)

NVIDIA GeForce GTX 780 Ti 6 GB 's Advantages

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 73.60GB/s)

2368 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

GeForce GTX 780 Ti 6 GB +461%

5.345 TFLOPS

Radeon R9 255 OEM

VS

GeForce GTX 780 Ti 6 GB

Graphics Card

Dec 2013

Release Date

Unknown

Volcanic Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

875 MHz

930 MHz

Boost Clock

928 MHz

1150 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

73.60GB/s

Bandwidth

336.6GB/s

Render Config

8

Compute Units

-

512

Shading Units

2880

32

TMUs

240

16

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

1536 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

55.68 GPixel/s

29.76 GTexel/s

Texture Rate

222.7 GTexel/s

-

952.3 GFLOPS

FP32 (float)

5.345 TFLOPS

59.52 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

65W

TDP

250W

250 W

Suggested PSU

600 W

No outputs

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cape Verde

GPU Name

GK110B

Cape Verde PRX

GPU Variant

-

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

7.08 billion

123 mm²

Die Size

561 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

5.1

Shader Model

5.1

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