GeForce GTX 745 vs Radeon RX 640

CPU

GPU

GeForce GTX 745

2014Core: 1020 MHzBoost: 1085 MHz

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Radeon RX 640

2019Core: 1082 MHzBoost: 1218 MHz

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GeForce GTX 745 vs Radeon RX 640 Performance Spectrum

GeForce GTX 745

4 GB 55

2,126

0.0%

GeForce GTX 970XM FORCE

RTX 500 Ada Generation Laptop GPU

2,172

+2.2%

Radeon RX 6750 GRE 12GB

About G3D Mark

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.

GeForce GTX 745 vs Radeon RX 640 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.

Search any supported game below to compare 1080p FPS for both components.

GeForce GTX 745 vs Radeon RX 640: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

GeForce GTX 745

2014

Why buy it

✅Costs $79 less on MSRP ($80 MSRP vs $159 MSRP).
✅Delivers 94.5% more G3D Mark for each dollar spent, at 26.6 vs 13.7 G3D/$ ($80 MSRP vs $159 MSRP).

Trade-offs

❌Lower average FPS than Radeon RX 640 across 50 tracked games in our benchmark data.
❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
❌2014 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon RX 640

2019

Why buy it

✅3.7% more average FPS across 50 tracked games in our benchmark data.
✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
✅GeForce GTX 745 is already obsolete for modern gaming, so Radeon RX 640 is the less risky modern option long term.

Trade-offs

❌Older hardware, 4 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
❌
98.8% HIGHER MSRP
$159 MSRPvs$80 MSRP
❌Lower G3D Mark per dollar, at 13.7 vs 26.6 G3D/$ ($159 MSRP vs $80 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

Radeon RX 640 is the faster gaming card right now. In our data, it leads by 3.7% in average FPS across 50 tracked games in our benchmark data and by 2.2% in PassMark G3D (2,172 vs 2,126), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

Radeon RX 640 is the safer long-term pick for 2026 and beyond. The case is simple: the newer feature stack, with FSR 3 (2023) and FSR Frame Generation + AFMF (2023), while GeForce GTX 745 is limited to no meaningful modern upscaling stack and no comparable frame-generation support, a 14nm process instead of 28nm, and a newer 2019 generation instead of 2014. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

GeForce GTX 745 makes the most sense to buy today. It is $79 cheaper on MSRP at $80 vs $159, and it leads G3D-per-dollar by 94.5% (26.6 vs 13.7), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, GeForce GTX 745 is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon RX 640 has the stronger long-term case.

GeForce GTX 745 vs Radeon RX 640 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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)

The clearest feature edge for the Radeon RX 640 is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The GeForce GTX 745 does not have comparable native support in the same tier.The GeForce GTX 745 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon RX 640 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GTX 745	Radeon RX 640
Upscaling Tech	Upscaling support	FSR 3
Frame Generation	Not Supported	FSR Frame Generation + AFMF
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 4 GB of GDDR5. Memory bus width is 128-bit on the GeForce GTX 745 and 128-bit on the Radeon RX 640. 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

At launch, the GeForce GTX 745 came in at $80, while the Radeon RX 640 launched at $159. On MSRP, GeForce GTX 745 was 49.7% cheaper ($79 less). Performance per dollar on MSRP (G3D Mark / MSRP): 26.6 (GeForce GTX 745) vs 13.7 (Radeon RX 640) — the GeForce GTX 745 offers 94.2% better value. The newer card here is Radeon RX 640 (2019 vs 2014).

Feature	GeForce GTX 745	Radeon RX 640
MSRP	$80-50%	$159
Performance per Dollar	26.6+94%	13.7
Codename	GM107	Polaris 23
Release	February 18 2014	May 13 2019
Ranking	#559	#665

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