AMD Radeon Sky 900 vs NVIDIA GeForce GTX 770

VS

AMD Radeon Sky 900

NVIDIA GeForce GTX 770

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 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 Sky 900 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 224.4GB/s)

256 additional rendering cores

NVIDIA GeForce GTX 770 's Advantages

Boost Clock has increased by 14% (1085MHz vs 950MHz)

Lower TDP (230W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +2%

3.405 TFLOPS

GeForce GTX 770

3.333 TFLOPS

Radeon Sky 900

VS

GeForce GTX 770

Graphics Card

Mar 2013

Release Date

May 2013

Radeon Sky

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

825 MHz

Base Clock

1046 MHz

950 MHz

Boost Clock

1085 MHz

1250 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

224.4GB/s

Render Config

28

Compute Units

-

1792

Shading Units

1536

112

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

34.72 GPixel/s

106.4 GTexel/s

Texture Rate

138.9 GTexel/s

-

3.405 TFLOPS

FP32 (float)

3.333 TFLOPS

851.2 GFLOPS

FP64 (double)

138.9 GFLOPS

Board Design

300W

TDP

230W

700 W

Suggested PSU

550 W

1x DVI 1x 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 Processor

Tahiti

GPU Name

GK104

Orthrus

GPU Variant

GK104-425-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

3.54 billion

352 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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