NVIDIA GeForce GT 640 vs ATI Radeon HD 4870 X2

VS

NVIDIA GeForce GT 640

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1024MB VRAM Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 3 years and 10 months late

More VRAM (2GB vs 1024GB)

Lower TDP (65W vs 286W)

ATI Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 28.51GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Radeon HD 4870 X2 +73%

1.2 TFLOPS

GeForce GT 640

VS

Radeon HD 4870 X2

Graphics Card

Jun 2012

Release Date

Aug 2008

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

10

-

384

Shading Units

800

32

TMUs

40

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

12.00 GPixel/s

28.86 GTexel/s

Texture Rate

30.00 GTexel/s

-

692.7 GFLOPS

FP32 (float)

1200 GFLOPS

28.86 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

65W

TDP

286W

250 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK107

GPU Name

R700

GK107-300-A2

GPU Variant

R700 XT (215-0669045)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.956 billion

118 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

Related GPU Comparisons

1

NVIDIA GeForce GT 640 vs NVIDIA GeForce GT 630 Rev. 2

2

NVIDIA GeForce GT 640 vs NVIDIA GeForce RTX 2080 Ti

3

NVIDIA GeForce GT 640 vs AMD Radeon RX 6750 GRE 12 GB

4

NVIDIA GeForce GT 640 vs AMD Radeon HD 7350 OEM

5

NVIDIA GeForce GT 640 vs AMD Radeon R9 370 1024SP

6

NVIDIA GeForce GT 640 vs NVIDIA GeForce RTX 4080 12 GB

7

NVIDIA GeForce GT 640 vs AMD FirePro S9100

8

NVIDIA GeForce GT 640 vs AMD Radeon HD 7470 OEM

9

NVIDIA GeForce GT 640 vs NVIDIA GeForce GT 610 PCIe x1

10

NVIDIA GeForce GT 640 vs ATI Radeon HD 2600 XT X2

Related News

1

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

2

CXMT Reportedly Achieves 80% Yield in DDR5 Production

3

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

4

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

5

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

6

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

7

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

8

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

9

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

10

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip