NVIDIA GeForce GTX 645 OEM vs AMD Radeon R7 250E

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon R7 250E

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 1024MB VRAM Radeon R7 250E to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

64 additional rendering cores

AMD Radeon R7 250E 's Advantages

Released 8 months late

Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)

Lower TDP (55W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +15%

0.949 TFLOPS

Radeon R7 250E

0.819 TFLOPS

GeForce GTX 645 OEM

VS

Radeon R7 250E

Graphics Card

Apr 2013

Release Date

Dec 2013

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

8

-

576

Shading Units

512

48

TMUs

32

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

12.80 GPixel/s

39.55 GTexel/s

Texture Rate

25.60 GTexel/s

-

949.2 GFLOPS

FP32 (float)

819.2 GFLOPS

39.55 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

65W

TDP

55W

250 W

Suggested PSU

250 W

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

Outputs

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

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

Cape Verde

GK106-200-A1

GPU Variant

Cape Verde PRO

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

1.5 billion

221 mm²

Die Size

123 mm²

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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