G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Overview

The GeForce GT 640 Rev. 2 is manufactured by NVIDIA. It was released in May 29 2013. It features the Kepler 2.0 architecture. The core clock speed is 1046 MHz. It has 384 shading units. The thermal design power (TDP) is 49W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,168 points. Launch price was $89.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar GeForce GT 640 Rev. 2

#415

Radeon HD 4290

MSRP: $60|Avg: $10

119%

#416

GeForce GT 1010

MSRP: $70|Avg: $70

118%

#417

GeForce GT 720

MSRP: $49|Avg: $49

114%

#418

Moore Threads MTT S70

MSRP: $345|Avg: $140

114%

#419

RADEON HD7450

MSRP: $50|Avg: $15

112%

#420

GeForce GT 330

MSRP: $99|Avg: $30

111%

#421

Radeon HD 7340G

MSRP: $50|Avg: $15

111%

#422

GeForce GTS 240

MSRP: $80|Avg: $40

109%

#423

GeForce GT 710

MSRP: $35|Avg: $50

105%

#424

GeForce GTX 560 SE

MSRP: $150|Avg: $150

104%

#425

Radeon HD 4250

MSRP: $50|Avg: $10

104%

#426

GeForce 7800 GT

MSRP: $449|Avg: $20

103%

#427

Radeon HD 2400

MSRP: $79|Avg: $10

103%

#428

Radeon HD 3450

MSRP: $50|Avg: $15

101%

#429

Radeon HD 2400 XT

MSRP: $79|Avg: $10

101%

#430

GeForce GT 640 Rev. 2

MSRP: $99|Avg: $99

100%

#431

Radeon R5 A6-8500P

MSRP: $100|Avg: $50

99%

#432

Radeon R7E

MSRP: N/A|Avg: $49

98%

#433

Radeon RX 570X

MSRP: $169|Avg: $169

96%

#434

Radeon HD 8550D

MSRP: $50|Avg: $50

96%

#435

Radeon HDG 4670

MSRP: $67|Avg: $15

96%

#436

Radeon HD 3670

MSRP: $100|Avg: $15

96%

#437

Radeon 520

MSRP: $78|Avg: $78

95%

#438

Radeon HD 4200

MSRP: $50|Avg: $10

95%

#439

Radeon R7 A360

MSRP: $109|Avg: $55

95%

#440

GeForce 605

MSRP: $30|Avg: $30

93%

#441

Radeon HD 4270

MSRP: $50|Avg: $10

93%

#442

Radeon E6760

MSRP: $240|Avg: $79

91%

#443

Moore Threads MTT S30

MSRP: $55|Avg: $55

89%

#444

Radeon HD 6790

MSRP: $149|Avg: $149

89%

#445

Radeon 535

MSRP: $100|Avg: $100

89%

Based on actual market prices and performance benchmarks.

FPS Benchmarks

Predicted performance for GeForce GT 640 Rev. 2 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.

Technical Analysis

Detailed breakdown of GeForce GT 640 Rev. 2 specifications and capabilities.

⚡

Graphics Performance

The GeForce GT 640 Rev. 2 scores 1,168 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Entry Level tier as a Legacy generation graphics card. It is built on the Kepler 2.0 (2013−2015) architecture (codename: GK208), manufactured on a 28 nm process— smaller process nodes improve power efficiency and transistor density. It packs 384 shader units (the primary compute units for rendering pixels), 32 TMUs (texture mapping units), and 8 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 0.8033 TFLOPS — this measures the theoretical peak floating-point performance.

Specification	GeForce GT 640 Rev. 2
G3D MarkPassMark 3D graphics benchmark score	1,168
ArchitectureGPU microarchitecture generation	Kepler 2.0 (2013−2015)
CodenameInternal GPU die codename	GK208
Manufacturing ProcessFabrication node — smaller = more efficient	28 nm
Shader UnitsCore compute units for rendering/compute	384
TMUsTexture Mapping Units — handle texture sampling	32
ROPsRender Output Units — final pixel/color blending	8
Base ClockGuaranteed minimum GPU frequency	1046 MHz
Compute (FP32)Peak single-precision floating-point performance	0.8033 TFLOPS
Texture Fill RateTextures processed per second	33.47 GTexel/s
PCIe InterfaceCPU↔GPU data link generation	PCIe 3.0 x16
Transistor Count	915 million
Performance RankPosition in global GPU performance ranking	#786

💾

Video Memory (VRAM)

The GeForce GT 640 Rev. 2 is equipped with 0.5 GB of GDDR5 video memory connected via a 64-bit memory bus, delivering Unknown of bandwidth. Memory operates at 8 Gbps effective speed.

Specification	GeForce GT 640 Rev. 2
VRAM SizeVideo memory capacity — more = better for high-res textures	0.5 GB
VRAM TypeMemory technology generation	GDDR5
Memory BusWidth of data path — wider = more bandwidth	64-bit
Memory SpeedEffective memory data rate	8 Gbps
BandwidthMaximum data throughput between GPU and VRAM	Unknown
L1 Cache	32 kB
L2 Cache	128 kB

✨

Advanced Features & APIs

Graphics API support: DirectX 12 (11_0), Vulkan 1.2, OpenGL 4.6— latest API versions enable the most advanced rendering features like ray tracing and mesh shaders.

Specification	GeForce GT 640 Rev. 2
NVIDIA Reflex	❌ Not Supported
DLSS Frame Generation	❌ Not Supported
DLSS Super Resolution	❌ Not Supported
DirectXMicrosoft graphics API version	12 (11_0)
VulkanCross-platform graphics API	1.2
OpenGLLegacy graphics API	4.6
Compute APIGPGPU framework (CUDA/ROCm/OpenCL)	CUDA 3.5
Multi-GPUSLI/CrossFire/NVLink support	None

🖥️

Display & Media

Display outputs: DVIx 0, HDMI 1.4ax 1, VGAx 2 — supports up to 3 simultaneous displays. Hardware encoder: NVENC (Kepler), decoder: PureVideo HD 5— dedicated hardware for video encoding/decoding accelerates streaming, recording, and video playback. Supported codecs: H.264,MPEG-2,VC-1.

Specification	GeForce GT 640 Rev. 2
0 PortsNumber of 0 display connectors	DVIx
1 PortsNumber of 1 display connectors	HDMI 1.4ax
2 PortsNumber of 2 display connectors	VGAx
Max DisplaysMaximum simultaneously connected monitors	3
Hardware EncoderVideo encoding engine version	NVENC (Kepler)
Hardware DecoderVideo decoding engine version	PureVideo HD 5
CodecsSupported video compression formats	H.264,MPEG-2,VC-1

🔌

Power & Dimensions

The GeForce GT 640 Rev. 2 draws 49 Watt under load (TDP) — a 300W PSU minimum is recommended. Power connector: None. Physical size: 145mm long, 111mm tall, occupying 1 expansion slots, weighing 250g— verify your case has clearance before purchasing. Typical temperatures: 35 at idle, 65 under load.

Specification	GeForce GT 640 Rev. 2
TDPPower consumption under load	49 Watt
Recommended PSUMinimum power supply wattage	300W
Power ConnectorRequired PCIe power cable type	None
Card LengthGPU card length — check case clearance	145mm
Card Height	111mm
Slot WidthExpansion slots occupied	1-slot
Weight	250g
Idle TemperatureTypical temperature at desktop idle	35
Load TemperatureTypical temperature under gaming load	65

💰

Value Analysis

At an average price of $99, the GeForce GT 640 Rev. 2 delivers 12 G3D Mark points per dollar. Overall performance ranking position: #786 among all indexed GPUs.

Specification	GeForce GT 640 Rev. 2
MSRPManufacturer's Suggested Retail Price	$99
Avg Price (30d)Average market price over the last 30 days	$99
Performance RankPosition in global GPU performance ranking	#786
Release Date	May 29 2013
Release Year	2013

Specifications Reference

Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.

2 categories

Technical Specifications

18 specs

ROPs	8
TMUs	32
Vram	0.5 GB
L1 Cache	32 kB
L2 Cache	128 kB
Core Clock	1046 MHz
Memory Type	GDDR5
Memory Speed	8 Gbps
Shading Units	384
PCIe Generation	PCIe 3.0 x16
Memory Bandwidth	Unknown
Memory Bus Width	64-bit
Transistor Count	915 million
Frame Generation	NVIDIA Reflex: No \| DLSS Frame Generation: No \| DLSS Super Resolution: No
Texture Fill Rate	33.47
Manufacturing Process	28 nm
Power Consumption (TDP)	49 Watt
Floating Point Performance	0.8033 TFLOPS