NVIDIA GeForce GTX 650 vs AMD Radeon R9 255 OEM

VS

NVIDIA GeForce GTX 650 AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 's Advantages

Larger VRAM bandwidth (80.00GB/s vs 73.60GB/s)

AMD Radeon R9 255 OEM 's Advantages

Released 1 years and 3 months late

Boost Clock930MHz

More VRAM (2GB vs 1GB)

128 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 650

0.812 TFLOPS

Radeon R9 255 OEM +17%

0.952 TFLOPS

GeForce GTX 650

VS

Radeon R9 255 OEM

Graphics Card

Sep 2012

Release Date

Dec 2013

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

1250 MHz

Memory Clock

1150 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

80.00GB/s

Bandwidth

73.60GB/s

Render Config

-

SM Count

-

Compute Units

8

384

Shading Units

512

32

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

8.464 GPixel/s

Pixel Rate

14.88 GPixel/s

33.86 GTexel/s

Texture Rate

29.76 GTexel/s

-

FP16 (half)

-

812.5 GFLOPS

FP32 (float)

952.3 GFLOPS

33.86 GFLOPS

FP64 (double)

59.52 GFLOPS

Graphics Processor

GK107

GPU Name

Cape Verde

GK107-450-A2

GPU Variant

Cape Verde PRX

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

1.5 billion

118 mm²

Die Size

123 mm²

Board Design

65W

TDP

65W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.4a

Outputs

No outputs

1x 6-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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