NVIDIA GeForce GT 640 vs ATI Radeon HD 2600 XT AGP

VS

NVIDIA GeForce GT 640 ATI Radeon HD 2600 XT AGP

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 256MB VRAM Radeon HD 2600 XT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 5 years late

Larger VRAM bandwidth (28.51GB/s vs 25.60GB/s)

264 additional rendering cores

ATI Radeon HD 2600 XT AGP 's Advantages

Lower TDP (45W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640 +260%

0.693 TFLOPS

Radeon HD 2600 XT AGP

0.192 TFLOPS

GeForce GT 640

VS

Radeon HD 2600 XT AGP

Graphics Card

Jun 2012

Release Date

Jun 2007

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

Base Clock

-

Boost Clock

-

891 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

Compute Units

3

384

Shading Units

120

32

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

64 KB

Theoretical Performance

7.216 GPixel/s

Pixel Rate

3.200 GPixel/s

28.86 GTexel/s

Texture Rate

6.400 GTexel/s

-

FP16 (half)

-

692.7 GFLOPS

FP32 (float)

192.0 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Graphics Processor

GK107

GPU Name

RV630

GK107-300-A2

GPU Variant

RV630 XT (215CDABKA15FG)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

1.27 billion

Transistors

0.39 billion

118 mm²

Die Size

153 mm²

Board Design

65W

TDP

45W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.0

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