GeForce GTX 745 vs Radeon RX 640

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.

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

Based on actual market prices and performance benchmarks.

Performance Per Dollar Radeon RX 640

#313

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

795%

#315

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

720%

#316

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

719%

#320

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

653%

#321

Radeon RX 6300

MSRP: $60|Avg: $40

649%

#323

Radeon RX 640

MSRP: $159|Avg: $55

100%

#326

Iris Pro Graphics P580

MSRP: $150|Avg: $60

99%

#327

Radeon E8870PCIe

MSRP: $250|Avg: $200

99%

#330

Arc Graphics 140T

MSRP: $350|Avg: $300

94%

#331

Radeon 680M

MSRP: N/A|Avg: $80

94%

#333

GeForce 730A

MSRP: $60|Avg: $20

93%

#334

GeForce GT 745A

MSRP: $99|Avg: $20

91%

#335

GeForce 710A

MSRP: $35|Avg: $62

91%

#336

Radeon HD 8670D + HD 6670 Dual

MSRP: $100|Avg: $10

89%

#338

GeForce MX230

MSRP: $150|Avg: $150

89%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

⚠️ Generational Difference

The Radeon RX 640 uses modern memory architecture. The Radeon RX 640 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 745 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The Radeon RX 640 is the superior choice for raw performance. It leads with a 2.2% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GTX 745.

Insight	GeForce GTX 745	Radeon RX 640
Performance	❌Lower raw frame rates (-2.2%)	✅Leading raw performance (+2.2%)
Longevity	🛑Obsolete Architecture (2014 / Maxwell (2014−2017))	GCN 4.0 (2016−2020) (14nm)
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+0%)
Efficiency	Normal Efficiency	Normal Efficiency
Case Fit	📏 Compact / SFF Friendly	—

💎 Value Proposition

The GeForce GTX 745 offers a compelling cost-to-performance ratio. Priced at $25 versus $55 for the Radeon RX 640, it costs 55% less. While it maintains basic entry-level capabilities, this results in a 115.3% higher cost efficiency score.

Insight	GeForce GTX 745	Radeon RX 640
Cost Efficiency	✅Better overall value (+115.3%)	❌Lower cost efficiency
Upfront Cost	✅More affordable ($25)	⚠️Higher upfront cost ($55)

Performance Check

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

GeForce GTX 745 Benchmark Check

Radeon RX 640 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GTX 745 and Radeon RX 640

GeForce GTX 745

The GeForce GTX 745 is manufactured by NVIDIA. It was released in February 18 2014. It features the Maxwell architecture. The core clock ranges from 1020 MHz to 1085 MHz. It has 512 shading units. The thermal design power (TDP) is 55W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,126 points. Launch price was $119.

Radeon RX 640

The Radeon RX 640 is manufactured by AMD. It was released in May 13 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,172 points.

⚡

Graphics Performance

The GeForce GTX 745 scores 2,126 and the Radeon RX 640 reaches 2,172 in the G3D Mark benchmark — just a 2.2% difference, making them near-identical in rasterization performance. The GeForce GTX 745 is built on Maxwell while the Radeon RX 640 uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 512 (GeForce GTX 745) vs 640 (Radeon RX 640). Raw compute: 1.111 TFLOPS (GeForce GTX 745) vs 1.559 TFLOPS (Radeon RX 640). Boost clocks: 1085 MHz vs 1218 MHz.

Feature	GeForce GTX 745	Radeon RX 640
G3D Mark Score	2,126	2,172+2%
Architecture	Maxwell	GCN 4.0
Process Node	28 nm	14 nm
Shading Units	512	640+25%
Compute (TFLOPS)	1.111 TFLOPS	1.559 TFLOPS+40%
Boost Clock	1085 MHz	1218 MHz+12%
ROPs	16	16
TMUs	32	40+25%
L1 Cache	256 KB+60%	160 KB
L2 Cache	2 MB+300%	0.5 MB

✨

Advanced Features (DLSS/FSR)

A critical advantage for the Radeon RX 640 is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce GTX 745 lacks specific hardware/driver support for this native frame generation tier.

Feature	GeForce GTX 745	Radeon RX 640
Upscaling Tech	FSR 2.1 (Compatible)	FSR 3 (Native)
Frame Generation	FSR 3 (Compatible)	FSR 3 / AFMF (Driver)
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards feature 4 GB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 2 MB (GeForce GTX 745) vs 0.5 MB (Radeon RX 640) — the GeForce GTX 745 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GTX 745	Radeon RX 640
VRAM Capacity	4 GB	4 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	80 GB/s	Unknown
Bus Width	128-bit	128-bit
L2 Cache	2 MB+300%	0.5 MB

🖥️

Display & API Support

DirectX support: 12 (11_0) (GeForce GTX 745) vs 12 (FL 12_0) (Radeon RX 640). Vulkan: 1.4 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 6.

Feature	GeForce GTX 745	Radeon RX 640
DirectX	12 (11_0)	12 (FL 12_0)
Vulkan	1.4+8%	1.3
OpenGL	4.6	4.6
Max Displays	3	6+100%

🎬

Media & Encoding

Hardware encoder: NVENC 4th Gen (GeForce GTX 745) vs VCE 3.4 (Radeon RX 640). Decoder: PureVideo HD VP6 vs UVD 6.3. Supported codecs: H.264,VC-1,MPEG-2,MPEG-4 ASP (GeForce GTX 745) vs H.264,H.265/HEVC (Radeon RX 640).

Feature	GeForce GTX 745	Radeon RX 640
Encoder	NVENC 4th Gen	VCE 3.4
Decoder	PureVideo HD VP6	UVD 6.3
Codecs	H.264,VC-1,MPEG-2,MPEG-4 ASP	H.264,H.265/HEVC

🔌

Power & Dimensions

The GeForce GTX 745 draws 55W versus the Radeon RX 640's 50W — a 9.5% difference. The Radeon RX 640 is more power-efficient. Recommended PSU: 300W (GeForce GTX 745) vs 350W (Radeon RX 640). Power connectors: 1x 6-pin vs PCIe-powered.

Feature	GeForce GTX 745	Radeon RX 640
TDP	55W	50W-9%
Recommended PSU	300W-14%	350W
Power Connector	1x 6-pin	PCIe-powered
Length	145mm	—
Height	69mm	—
Slots	1	1
Temp (Load)	75°C	—
Perf/Watt	38.7	43.4+12%

💰

Value Analysis

The GeForce GTX 745 launched at $80 MSRP and currently averages $25, while the Radeon RX 640 launched at $159 and now averages $55. The GeForce GTX 745 costs 54.5% less ($30 savings) at current market prices. Performance per dollar (G3D Mark / price): 85.0 (GeForce GTX 745) vs 39.5 (Radeon RX 640) — the GeForce GTX 745 offers 115.2% better value. The Radeon RX 640 is the newer GPU (2019 vs 2014).