AMD Radeon R9 285X vs NVIDIA GeForce GTX 650

VS

AMD Radeon R9 285X

NVIDIA GeForce GTX 650

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 1024MB VRAM GeForce GTX 650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 80.00GB/s)

1664 additional rendering cores

NVIDIA GeForce GTX 650 's Advantages

Lower TDP (65W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 285X +405%

4.104 TFLOPS

GeForce GTX 650

0.812 TFLOPS

Radeon R9 285X

VS

GeForce GTX 650

Graphics Card

Unknown

Release Date

Sep 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1250 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

80.00GB/s

Render Config

32

Compute Units

-

2048

Shading Units

384

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

32.06 GPixel/s

Pixel Rate

8.464 GPixel/s

128.3 GTexel/s

Texture Rate

33.86 GTexel/s

-

4.104 TFLOPS

FP32 (float)

812.5 GFLOPS

-

FP64 (double)

33.86 GFLOPS

Board Design

200W

TDP

65W

550 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x mini-HDMI 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tonga

GPU Name

GK107

Tonga XT (215-0851313)

GPU Variant

GK107-450-A2

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

1.27 billion

366 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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