AMD Radeon R9 255 OEM vs NVIDIA GeForce GTX 770

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GTX 770

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 2GB VRAM GeForce GTX 770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Released 7 months late

Lower TDP (65W vs 230W)

NVIDIA GeForce GTX 770 's Advantages

Boost Clock has increased by 17% (1085MHz vs 930MHz)

Larger VRAM bandwidth (224.4GB/s vs 73.60GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

GeForce GTX 770 +250%

3.333 TFLOPS

Radeon R9 255 OEM

VS

GeForce GTX 770

Graphics Card

Dec 2013

Release Date

May 2013

Volcanic Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

1046 MHz

930 MHz

Boost Clock

1085 MHz

1150 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

73.60GB/s

Bandwidth

224.4GB/s

Render Config

8

Compute Units

-

512

Shading Units

1536

32

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

34.72 GPixel/s

29.76 GTexel/s

Texture Rate

138.9 GTexel/s

-

952.3 GFLOPS

FP32 (float)

3.333 TFLOPS

59.52 GFLOPS

FP64 (double)

138.9 GFLOPS

Board Design

65W

TDP

230W

250 W

Suggested PSU

550 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

GK104

Cape Verde PRX

GPU Variant

GK104-425-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

3.54 billion

123 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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