AMD Radeon Sky 700 vs NVIDIA GeForce GT 645 OEM

VS

AMD Radeon Sky 700

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 6GB VRAM Radeon Sky 700 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 700 's Advantages

Released 11 months late

More VRAM (6GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 91.87GB/s)

1504 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 225W)

Score

Benchmark

FP32 (float)

Radeon Sky 700 +260%

3.226 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

Radeon Sky 700

VS

GeForce GT 645 OEM

Graphics Card

Mar 2013

Release Date

Apr 2012

Radeon Sky

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

957 MHz

Memory

6GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

192bit

264.0GB/s

Bandwidth

91.87GB/s

Render Config

28

Compute Units

-

SM Count

6

1792

Shading Units

288

112

TMUs

48

32

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

384 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

9.312 GPixel/s

100.8 GTexel/s

Texture Rate

37.25 GTexel/s

-

3.226 TFLOPS

FP32 (float)

894.0 GFLOPS

806.4 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

225W

TDP

102W

550 W

Suggested PSU

300 W

1x DisplayPort 1.2

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 8-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

GF114

Tahiti PRO GL

GPU Variant

-

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.95 billion

352 mm²

Die Size

332 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

Related GPU Comparisons

1

AMD Radeon Sky 700 vs ATI Radeon HD 2950 XTX

2

AMD Radeon Sky 700 vs NVIDIA GeForce GT 1030

3

AMD Radeon Sky 700 vs NVIDIA GeForce GTX 460

4

AMD Radeon Sky 700 vs AMD FirePro W9000

5

AMD Radeon Sky 700 vs NVIDIA GeForce 9500 GT

6

AMD Radeon Sky 700 vs ATI Radeon HD 3470

7

AMD Radeon Sky 700 vs AMD Radeon R5 220 OEM

8

AMD Radeon Sky 700 vs AMD FirePro S7000

9

AMD Radeon Sky 700 vs Intel Arc A580

10

AMD Radeon Sky 700 vs AMD Radeon R9 Nano

Related News

1

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

2

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

3

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

4

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

5

CXMT Reportedly Achieves 80% Yield in DDR5 Production

6

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

7

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

8

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

9

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

10

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers