ATI Radeon HD 4580 vs NVIDIA GeForce GT 640

VS

ATI Radeon HD 4580 NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4580 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 7 months late

Larger VRAM bandwidth (28.51GB/s vs 22.18GB/s)

264 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4580

0.191 TFLOPS

GeForce GT 640 +262%

0.693 TFLOPS

Radeon HD 4580

VS

GeForce GT 640

Graphics Card

Nov 2011

Release Date

Jun 2012

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

693 MHz

Memory Clock

891 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

22.18GB/s

Bandwidth

28.51GB/s

Render Config

-

SM Count

-

3

Compute Units

-

120

Shading Units

384

8

TMUs

32

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

Theoretical Performance

3.184 GPixel/s

Pixel Rate

7.216 GPixel/s

6.368 GTexel/s

Texture Rate

28.86 GTexel/s

-

FP16 (half)

-

191.0 GFLOPS

FP32 (float)

692.7 GFLOPS

-

FP64 (double)

28.86 GFLOPS

Graphics Processor

RV635

GPU Name

GK107

RV635 PRO (215-0682008)

GPU Variant

GK107-300-A2

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.378 billion

Transistors

1.27 billion

135 mm²

Die Size

118 mm²

Board Design

65W

TDP

65W

250 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

None

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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