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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GeForce GT 640

2012

Why buy it

✅Costs $500 less on MSRP ($99 MSRP vs $599 MSRP).
✅Draws 65W instead of 200W, a 135W reduction.
✅Measures 145mm instead of 304mm, a 159mm shorter card that is more SFF-friendly.

Trade-offs

❌Lower average FPS than GeForce RTX 4070 across 35 tracked games in our benchmark data.
❌Less VRAM, with 4 GB vs 12 GB for high-resolution textures and newer games.
❌No equivalent frame-generation stack like DLSS 3.5 + Frame Generation (2023).
❌Very weak future-proofing: 2012-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌Lower G3D Mark per dollar, at 11.8 vs 44.9 G3D/$ ($99 MSRP vs $599 MSRP).

GeForce RTX 4070

2023

Why buy it

✅2389.2% more average FPS across 35 tracked games in our benchmark data.
✅Delivers 280.6% more G3D Mark for each dollar spent, at 44.9 vs 11.8 G3D/$ ($599 MSRP vs $99 MSRP).
✅Access to a newer frame-generation stack with DLSS 3.5 + Frame Generation (2023).
✅200% more VRAM for high-resolution textures and newer games (12 GB vs 4 GB).
✅More future proof: Ada Lovelace (2022−2024) on 5nm with a newer platform for upcoming games.

Trade-offs

❌207.7% higher power demand at 200W vs 65W.
❌109.7% longer card at 304mm vs 145mm.

GeForce GT 640

2012

GeForce RTX 4070

2023

Why buy it

✅Costs $500 less on MSRP ($99 MSRP vs $599 MSRP).
✅Draws 65W instead of 200W, a 135W reduction.
✅Measures 145mm instead of 304mm, a 159mm shorter card that is more SFF-friendly.

Why buy it

✅2389.2% more average FPS across 35 tracked games in our benchmark data.
✅Delivers 280.6% more G3D Mark for each dollar spent, at 44.9 vs 11.8 G3D/$ ($599 MSRP vs $99 MSRP).
✅Access to a newer frame-generation stack with DLSS 3.5 + Frame Generation (2023).
✅200% more VRAM for high-resolution textures and newer games (12 GB vs 4 GB).
✅More future proof: Ada Lovelace (2022−2024) on 5nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than GeForce RTX 4070 across 35 tracked games in our benchmark data.
❌Less VRAM, with 4 GB vs 12 GB for high-resolution textures and newer games.
❌No equivalent frame-generation stack like DLSS 3.5 + Frame Generation (2023).
❌Very weak future-proofing: 2012-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌Lower G3D Mark per dollar, at 11.8 vs 44.9 G3D/$ ($99 MSRP vs $599 MSRP).

Trade-offs

❌207.7% higher power demand at 200W vs 65W.
❌109.7% longer card at 304mm vs 145mm.

Quick Answers

So, is GeForce RTX 4070 better than GeForce GT 640?

Yes. GeForce RTX 4070 is clearly the better overall GPU here. GeForce RTX 4070 averages 2389.2% more FPS across 35 tracked games in our benchmark data. You are also looking at 26,919 vs 1,169 in G3D Mark. On top of that, GeForce RTX 4070 is a 2023 card with DLSS 3.5 + Frame Generation, while GeForce GT 640 is a 2012 model from an older generation with no meaningful modern upscaling stack. So this is not really a tight same-tier comparison. It is more a modern card against an older, weaker alternative.

Which one is more future-proof for 2026 and beyond?

GeForce RTX 4070 is the more future-proof choice for 2026 and beyond. You are getting a newer 2023 generation instead of 2012, 2202.7% more raw performance headroom, more VRAM at 12 GB instead of 4 GB, and better upscaling support with DLSS 3.5 Super Resolution (2023) instead of no meaningful modern upscaling stack and better frame-generation support with DLSS 3.5 + Frame Generation (2023) instead of no meaningful modern upscaling stack. That leaves it with more room for heavier textures, tougher ray tracing loads, and higher-end 1440p or 4K gaming over the next few years.

Which one is the smarter buy today, not just the cheaper card?

GeForce RTX 4070 is the smarter buy by a wide margin. GeForce RTX 4070 is about 505.1% more expensive on MSRP at $599 MSRP versus $99 MSRP, and you are getting 2389.2% more estimated average FPS across 35 tracked games in our benchmark data and 2202.7% higher G3D Mark. GeForce GT 640 really only makes sense now as a very cheap stopgap or a used-market placeholder.

Is GeForce GT 640 still worth buying for gaming in 2026?

No, not for a fresh gaming build. GeForce GT 640 is 2012 hardware with 4 GB of VRAM, 1,169 in G3D Mark, and no meaningful modern upscaling stack. That is simply too far behind to be an easy modern recommendation.

Games Benchmarks

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 9800X3D 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 GT 640 Benchmark Check

GeForce RTX 4070 Benchmark Check

Path of Exile 2

Preset	GeForce GT 640	GeForce RTX 4070
1080p
low	13 FPS	183 FPS
medium	9 FPS	167 FPS
high	5 FPS	151 FPS
ultra	3 FPS	131 FPS
1440p
low	9 FPS	150 FPS
medium	5 FPS	124 FPS
high	2 FPS	110 FPS
ultra	1 FPS	101 FPS
4K
low	4 FPS	92 FPS
medium	2 FPS	78 FPS
high	1 FPS	65 FPS
ultra	1 FPS	58 FPS

Open GeForce GT 640 Open GeForce RTX 4070

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce GT 640	GeForce RTX 4070
1080p
low	34 FPS	544 FPS
medium	15 FPS	454 FPS
high	11 FPS	353 FPS
ultra	7 FPS	299 FPS
1440p
low	11 FPS	351 FPS
medium	5 FPS	288 FPS
high	4 FPS	235 FPS
ultra	3 FPS	197 FPS
4K
low	4 FPS	172 FPS
medium	2 FPS	144 FPS
high	1 FPS	125 FPS
ultra	1 FPS	101 FPS

Open GeForce GT 640 Open GeForce RTX 4070

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce GT 640	GeForce RTX 4070
1080p
low	53 FPS	884 FPS
medium	42 FPS	713 FPS
high	35 FPS	643 FPS
ultra	26 FPS	569 FPS
1440p
low	39 FPS	684 FPS
medium	32 FPS	549 FPS
high	26 FPS	483 FPS
ultra	20 FPS	424 FPS
4K
low	26 FPS	467 FPS
medium	21 FPS	373 FPS
high	18 FPS	326 FPS
ultra	13 FPS	277 FPS

Open GeForce GT 640 Open GeForce RTX 4070

League of Legends

League of Legends

Valorant

Preset	GeForce GT 640	GeForce RTX 4070
1080p
low	53 FPS	751 FPS
medium	42 FPS	612 FPS
high	26 FPS	536 FPS
ultra	16 FPS	497 FPS
1440p
low	6 FPS	615 FPS
medium	4 FPS	500 FPS
high	3 FPS	433 FPS
ultra	2 FPS	395 FPS
4K
low	4 FPS	384 FPS
medium	2 FPS	324 FPS
high	2 FPS	301 FPS
ultra	1 FPS	272 FPS

Open GeForce GT 640 Open GeForce RTX 4070

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GeForce GT 640 and GeForce RTX 4070

GeForce GT 640

The GeForce GT 640 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,169 points. Launch price was $99.

GeForce RTX 4070

The GeForce RTX 4070 is manufactured by NVIDIA. It was released in April 12 2023. It features the Ada Lovelace architecture. The core clock ranges from 1920 MHz to 2475 MHz. It has 5888 shading units. The thermal design power (TDP) is 200W. Manufactured using 5 nm process technology. It features 46 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,919 points. Launch price was $599.

⚡

Graphics Performance

In G3D Mark, the GeForce GT 640 scores 1,169 versus the GeForce RTX 4070's 26,919 — the GeForce RTX 4070 leads by 2202.7%. The GeForce GT 640 is built on Kepler while the GeForce RTX 4070 uses Ada Lovelace, both on 28 nm vs 5 nm. Shader units: 384 (GeForce GT 640) vs 5,888 (GeForce RTX 4070). Raw compute: 0.6927 TFLOPS (GeForce GT 640) vs 29.15 TFLOPS (GeForce RTX 4070).

Feature	GeForce GT 640	GeForce RTX 4070
G3D Mark Score	1,169	26,919+2203%
Architecture	Kepler	Ada Lovelace
Process Node	28 nm	5 nm
Shading Units	384	5888+1433%
Compute (TFLOPS)	0.6927 TFLOPS	29.15 TFLOPS+4108%
ROPs	16	64+300%
TMUs	32	184+475%
L1 Cache	0.03 MB	5.8 MB+19233%
L2 Cache	0.25 MB	36 MB+14300%

✨

Advanced Features (DLSS/FSR)

A critical advantage for the GeForce RTX 4070 is support for DLSS 3.5 + Frame Generation. 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 GT 640 lacks specific hardware/driver support for this native frame generation tier.The GeForce RTX 4070 supports the newer DLSS 3.5 Super Resolution, whereas the GeForce GT 640 is capped at Upscaling support.

Feature	GeForce GT 640	GeForce RTX 4070
Upscaling Tech	Upscaling support	DLSS 3.5 Super Resolution
Frame Generation	Not Supported	DLSS 3.5 + Frame Generation
Ray Reconstruction	No	Yes (DLSS 3.5)
Low Latency	NVIDIA Reflex	NVIDIA Reflex

💾

Video Memory (VRAM)

The GeForce GT 640 comes with 4 GB of VRAM, while the GeForce RTX 4070 has 12 GB. The GeForce RTX 4070 offers 200% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 192-bit. L2 Cache: 0.25 MB (GeForce GT 640) vs 36 MB (GeForce RTX 4070) — the GeForce RTX 4070 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640	GeForce RTX 4070
VRAM Capacity	4 GB	12 GB+200%
Memory Type	GDDR5	GDDR6X
Memory Bandwidth	Unknown	504 GB/s
Bus Width	128-bit	192-bit+50%
L2 Cache	0.25 MB	36 MB+14300%

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 640) vs 12.2 (GeForce RTX 4070). Vulkan: 1.1 vs 1.3. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 3 vs 4.

Feature	GeForce GT 640	GeForce RTX 4070
DirectX	11.0	12.2+11%
Vulkan	1.1	1.3+18%
OpenGL	4.5	4.6+2%
Max Displays	3	4+33%

🎬

Media & Encoding

Hardware encoder: NVENC 1.0 (GeForce GT 640) vs 8th Gen NVENC (2x) (GeForce RTX 4070). Decoder: PureVideo HD VP5 vs 5th Gen NVDEC. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640) vs MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4070).

Feature	GeForce GT 640	GeForce RTX 4070
Encoder	NVENC 1.0	8th Gen NVENC (2x)
Decoder	PureVideo HD VP5	5th Gen NVDEC
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	MPEG-2,H.264,HEVC,VP9,AV1

🔌

Power & Dimensions

The GeForce GT 640 draws 65W versus the GeForce RTX 4070's 200W — a 101.9% difference. The GeForce GT 640 is more power-efficient. Recommended PSU: 300W (GeForce GT 640) vs 650W (GeForce RTX 4070). Power connectors: None vs 8-pin. Card length: 145mm vs 304mm, occupying 1 vs 3 slots. Typical load temperature: 60°C vs 80°C.

Feature	GeForce GT 640	GeForce RTX 4070
TDP	65W-68%	200W
Recommended PSU	300W-54%	650W
Power Connector	None	8-pin
Length	145mm	304mm
Height	111mm	137mm
Slots	1-67%	3
Temp (Load)	60°C-25%	80°C
Perf/Watt	18.0	134.6+648%

💰

Value Analysis

The GeForce GT 640 launched at $99 MSRP, while the GeForce RTX 4070 launched at $599. The GeForce GT 640 costs 83.5% less ($500 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 11.8 (GeForce GT 640) vs 44.9 (GeForce RTX 4070) — the GeForce RTX 4070 offers 280.5% better value. The GeForce RTX 4070 is the newer GPU (2023 vs 2012).