NVIDIA GeForce GT 640 OEM Rebrand vs ATI FireGL V7600

VS

NVIDIA GeForce GT 640 OEM Rebrand

ATI FireGL V7600

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 512MB VRAM FireGL V7600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 4 years and 8 months late

More VRAM (1536GB vs 512GB)

Lower TDP (75W vs 127W)

ATI FireGL V7600 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 38.40GB/s)

176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand +8%

0.415 TFLOPS

FireGL V7600

0.384 TFLOPS

GeForce GT 640 OEM Rebrand

VS

FireGL V7600

Graphics Card

Apr 2012

Release Date

Aug 2007

GeForce 600

Generation

FireGL

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

256bit

38.40GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

4

3

SM Count

-

144

Shading Units

320

24

TMUs

16

24

ROPs

16

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

128 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

9.600 GPixel/s

17.28 GTexel/s

Texture Rate

9.600 GTexel/s

-

414.7 GFLOPS

FP32 (float)

384.0 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

127W

250 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 8-pin

Graphics Processor

GF116

GPU Name

R600

GF116-150-A1

GPU Variant

R600 GL

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.17 billion

Transistors

0.72 billion

238 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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