AMD Radeon HD 7720 OEM vs NVIDIA GeForce GT 640 OEM

VS

AMD Radeon HD 7720 OEM

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 OEM and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7720 OEM 's Advantages

Released 11 months late

Larger VRAM bandwidth (134.4GB/s vs 28.51GB/s)

416 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

More VRAM (2GB vs 1024GB)

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 7720 OEM +119%

1.344 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

Radeon HD 7720 OEM

VS

GeForce GT 640 OEM

Graphics Card

Mar 2013

Release Date

Apr 2012

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

28.51GB/s

Render Config

10

Compute Units

-

800

Shading Units

384

40

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

26.88 GPixel/s

Pixel Rate

6.376 GPixel/s

33.60 GTexel/s

Texture Rate

25.50 GTexel/s

-

1344 GFLOPS

FP32 (float)

612.1 GFLOPS

-

FP64 (double)

25.50 GFLOPS

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

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

-

Power Connectors

None

Graphics Processor

Barts

GPU Name

GK107

Barts LE (215-0798002)

GPU Variant

GK107-320-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

1.27 billion

255 mm²

Die Size

118 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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