GeForce GT 640M vs Radeon HD 4770

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 GT 640M vs Radeon HD 4770 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 GT 640M vs Radeon HD 4770: 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 GT 640M

2012

Why buy it

✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
✅Draws 32W instead of 80W, a 48W reduction.
✅More future proof: Kepler (2012−2018) on 28nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than Radeon HD 4770 across 50 tracked games in our benchmark data.
❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌Lower G3D Mark per dollar, at 0 vs 8.3 G3D/$ (Unknown MSRP vs $109 MSRP).

Radeon HD 4770

2009

Why buy it

✅14.1% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 8.3 vs 0 G3D/$ ($109 MSRP vs Unknown MSRP).

Trade-offs

❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
❌2009 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌150% higher power demand at 80W vs 32W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon HD 4770 is the faster gaming card right now. In our data, it leads by 14.1% in average FPS across 50 tracked games in our benchmark data and by 0.2% in PassMark G3D (909 vs 907), so the answer here is pretty clean.

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

GeForce GT 640M is the safer long-term pick for 2026 and beyond. The case is simple: 2 GB vs 512 MB of VRAM, a 28nm process instead of 40nm, and a newer 2012 generation instead of 2009. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

Radeon HD 4770 makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, Radeon HD 4770 is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce GT 640M has the stronger long-term case.

GeForce GT 640M vs Radeon HD 4770 Technical Specifications

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

GeForce GT 640M

The GeForce GT 640M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 907 points.

Radeon HD 4770

The Radeon HD 4770 is manufactured by AMD. It was released in April 28 2009. It features the TeraScale architecture. The core clock speed is 750 MHz. It has 640 shading units. The thermal design power (TDP) is 80W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 909 points. Launch price was $109.

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Graphics Performance

The GeForce GT 640M scores 907 and the Radeon HD 4770 reaches 909 in the G3D Mark benchmark — just a 0.2% difference, making them near-identical in rasterization performance. The GeForce GT 640M is built on Kepler while the Radeon HD 4770 uses TeraScale, both on 28 nm vs 40 nm. Shader units: 384 (GeForce GT 640M) vs 640 (Radeon HD 4770). Raw compute: 0.48 TFLOPS (GeForce GT 640M) vs 0.96 TFLOPS (Radeon HD 4770).

Feature	GeForce GT 640M	Radeon HD 4770
G3D Mark Score	907	909
Architecture	Kepler	TeraScale
Process Node	28 nm	40 nm
Shading Units	384	640+67%
Compute (TFLOPS)	0.48 TFLOPS	0.96 TFLOPS+100%
ROPs	16	16
TMUs	32	32
L1 Cache	32 KB	128 KB+300%
L2 Cache	256 KB+100%	128 KB

✨

Advanced Features (DLSS/FSR)

The GeForce GT 640M gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 4770 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce GT 640M	Radeon HD 4770
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

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Video Memory (VRAM)

The GeForce GT 640M has 2 GB of VRAM, while the Radeon HD 4770 carries 512 MB. GeForce GT 640M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce GT 640M and 64-bit on the Radeon HD 4770. L2 Cache: 256 KB (GeForce GT 640M) vs 128 KB (Radeon HD 4770) — the GeForce GT 640M has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640M	Radeon HD 4770
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit+100%	64-bit
L2 Cache	256 KB+100%	128 KB

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 640M) vs 10.1 (Radeon HD 4770). OpenGL: 4.5 vs 3.3. Maximum simultaneous displays: 1 vs 3.

Feature	GeForce GT 640M	Radeon HD 4770
DirectX	11.0+9%	10.1
OpenGL	4.5+36%	3.3
Max Displays	1	3+200%

🎬

Media & Encoding

Decoder: PureVideo HD VP5 vs UVD 2.2. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640M) vs H.264,VC-1,MPEG-2,DivX (Radeon HD 4770).

Feature	GeForce GT 640M	Radeon HD 4770
Encoder	NVENC 1.0	—
Decoder	PureVideo HD VP5	UVD 2.2
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	H.264,VC-1,MPEG-2,DivX

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Power & Dimensions

The GeForce GT 640M draws 32W versus the Radeon HD 4770's 80W — a 85.7% difference. The GeForce GT 640M is more power-efficient. Recommended PSU: 350W (GeForce GT 640M) vs 400W (Radeon HD 4770). Power connectors: PCIe-powered vs 1x 6-pin. Card length: 0mm vs 203mm, occupying 0 vs 2 slots. Typical load temperature: 70°C vs 72°C.

Feature	GeForce GT 640M	Radeon HD 4770
TDP	32W-60%	80W
Recommended PSU	350W-13%	400W
Power Connector	PCIe-powered	1x 6-pin
Length	0mm	203mm
Height	0mm	—
Slots	0-100%	2
Temp (Load)	70°C-3%	72°C
Perf/Watt	28.3+148%	11.4

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Value Analysis

The newer card here is GeForce GT 640M (2012 vs 2009).

Feature	GeForce GT 640M	Radeon HD 4770
MSRP	—	$109
Codename	GK107	RV740
Release	March 22 2012	April 28 2009
Ranking	#909	#908

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