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

✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).
✅Measures 145mm instead of 168mm, a 23mm shorter card that is more SFF-friendly.

Trade-offs

❌Lower average FPS than Radeon R7 +8G across 48 tracked games in our benchmark data.
❌Very weak future-proofing: 2012-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌
102% HIGHER MSRP
$99 MSRPvs$49 MSRP
❌Lower G3D Mark per dollar, at 11.8 vs 24.3 G3D/$ ($99 MSRP vs $49 MSRP).
❌116.7% higher power demand at 65W vs 30W.

Radeon R7 +8G

2015

Why buy it

✅31.1% more average FPS across 48 tracked games in our benchmark data.
✅Costs $50 less on MSRP ($49 MSRP vs $99 MSRP).
✅Delivers 105.8% more G3D Mark for each dollar spent, at 24.3 vs 11.8 G3D/$ ($49 MSRP vs $99 MSRP).
✅Draws 30W instead of 65W, a 35W reduction.

Trade-offs

❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2015-era hardware with 512 MB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌15.9% longer card at 168mm vs 145mm.

GeForce GT 640

2012

Radeon R7 +8G

2015

Why buy it

✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).
✅Measures 145mm instead of 168mm, a 23mm shorter card that is more SFF-friendly.

Why buy it

✅31.1% more average FPS across 48 tracked games in our benchmark data.
✅Costs $50 less on MSRP ($49 MSRP vs $99 MSRP).
✅Delivers 105.8% more G3D Mark for each dollar spent, at 24.3 vs 11.8 G3D/$ ($49 MSRP vs $99 MSRP).
✅Draws 30W instead of 65W, a 35W reduction.

Trade-offs

❌Lower average FPS than Radeon R7 +8G across 48 tracked games in our benchmark data.
❌Very weak future-proofing: 2012-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌
102% HIGHER MSRP
$99 MSRPvs$49 MSRP
❌Lower G3D Mark per dollar, at 11.8 vs 24.3 G3D/$ ($99 MSRP vs $49 MSRP).
❌116.7% higher power demand at 65W vs 30W.

Trade-offs

❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2015-era hardware with 512 MB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌15.9% longer card at 168mm vs 145mm.

Quick Answers

So, is Radeon R7 +8G better than GeForce GT 640?

Yes. Radeon R7 +8G is the better GPU overall here. You are getting 31.1% more average FPS across 48 tracked games in our benchmark data and 1.9% higher PassMark G3D performance. It also comes from 2015 instead of 2012, which helps its case as the more complete modern gaming card.

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

GeForce GT 640 is the more future-proof choice for 2026 and beyond. You are getting more VRAM at 4 GB instead of 512 MB and the stronger feature stack with no meaningful modern upscaling stack instead of FSR upscaling. That extra memory headroom makes it the safer pick for newer games, heavier textures, and higher settings over time.

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

Radeon R7 +8G is the smarter buy today, but it is not as lopsided as a simple winner label makes it sound. Radeon R7 +8G is about $50 cheaper on MSRP at $49 MSRP versus $99 MSRP, and you are getting 31.1% more estimated average FPS across 48 tracked games in our benchmark data and 1.9% higher G3D Mark. It also leads G3D-per-dollar by 105.8%. GeForce GT 640 is the more forward-looking alternative, so it still has a real case if you care more about future-proofing than about squeezing out the strongest gaming value today.

When does GeForce GT 640 make more sense than Radeon R7 +8G?

Yes. GeForce GT 640 is still an excellent gaming GPU in 2026: it is still comfortable for 1080p and decent for 1440p, though 4K is more situational. It makes more sense if your priority is future-proofing and staying closer to $99 MSRP more than squeezing out the extra headroom of Radeon R7 +8G. The trade-off is that Radeon R7 +8G currently gives you 1.9% higher G3D Mark and 31.1% more estimated average FPS across 48 tracked games in our benchmark data. It also leads G3D-per-dollar by 105.8%.

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

Radeon R7 +8G Benchmark Check

Path of Exile 2

Preset	GeForce GT 640	Radeon R7 +8G
1080p
low	13 FPS	22 FPS
medium	9 FPS	13 FPS
high	5 FPS	8 FPS
ultra	3 FPS	4 FPS
1440p
low	9 FPS	10 FPS
medium	5 FPS	5 FPS
high	2 FPS	3 FPS
ultra	1 FPS	1 FPS
4K
low	4 FPS	4 FPS
medium	2 FPS	2 FPS
high	1 FPS	1 FPS
ultra	1 FPS	1 FPS

Open GeForce GT 640 Open Radeon R7 +8G

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce GT 640	Radeon R7 +8G
1080p
low	34 FPS	50 FPS
medium	15 FPS	27 FPS
high	11 FPS	19 FPS
ultra	7 FPS	13 FPS
1440p
low	11 FPS	23 FPS
medium	5 FPS	13 FPS
high	4 FPS	8 FPS
ultra	3 FPS	6 FPS
4K
low	4 FPS	7 FPS
medium	2 FPS	4 FPS
high	1 FPS	3 FPS
ultra	1 FPS	2 FPS

Open GeForce GT 640 Open Radeon R7 +8G

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce GT 640	Radeon R7 +8G
1080p
low	53 FPS	54 FPS
medium	42 FPS	43 FPS
high	35 FPS	36 FPS
ultra	26 FPS	27 FPS
1440p
low	39 FPS	40 FPS
medium	32 FPS	32 FPS
high	26 FPS	27 FPS
ultra	20 FPS	20 FPS
4K
low	26 FPS	27 FPS
medium	21 FPS	21 FPS
high	18 FPS	18 FPS
ultra	13 FPS	13 FPS

Open GeForce GT 640 Open Radeon R7 +8G

League of Legends

League of Legends

Valorant

Preset	GeForce GT 640	Radeon R7 +8G
1080p
low	53 FPS	54 FPS
medium	42 FPS	43 FPS
high	26 FPS	36 FPS
ultra	16 FPS	27 FPS
1440p
low	6 FPS	37 FPS
medium	4 FPS	30 FPS
high	3 FPS	25 FPS
ultra	2 FPS	19 FPS
4K
low	4 FPS	25 FPS
medium	2 FPS	19 FPS
high	2 FPS	15 FPS
ultra	1 FPS	11 FPS

Open GeForce GT 640 Open Radeon R7 +8G

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GeForce GT 640 and Radeon R7 +8G

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.

Radeon R7 +8G

The Radeon R7 +8G is manufactured by AMD. It was released in May 5 2015. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 915 MHz. It has 640 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,191 points.

⚡

Graphics Performance

The GeForce GT 640 scores 1,169 and the Radeon R7 +8G reaches 1,191 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The GeForce GT 640 is built on Kepler while the Radeon R7 +8G uses GCN 1.0, both on a 28 nm process. Shader units: 384 (GeForce GT 640) vs 640 (Radeon R7 +8G). Raw compute: 0.6927 TFLOPS (GeForce GT 640) vs 1.171 TFLOPS (Radeon R7 +8G).

Feature	GeForce GT 640	Radeon R7 +8G
G3D Mark Score	1,169	1,191+2%
Architecture	Kepler	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	384	640+67%
Compute (TFLOPS)	0.6927 TFLOPS	1.171 TFLOPS+69%
ROPs	16	16
TMUs	32	40+25%
L1 Cache	32 KB	160 KB+400%
L2 Cache	256 KB	256 KB

✨

Advanced Features (DLSS/FSR)

The GeForce GT 640 gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The Radeon R7 +8G relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.

Feature	GeForce GT 640	Radeon R7 +8G
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

💾

Video Memory (VRAM)

The GeForce GT 640 comes with 4 GB of VRAM, while the Radeon R7 +8G has 512 MB. The GeForce GT 640 offers 700% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit.

Feature	GeForce GT 640	Radeon R7 +8G
VRAM Capacity	4 GB+700%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	256 KB	256 KB

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 640) vs 12 (11_1) (Radeon R7 +8G). Vulkan: 1.1 vs 1.2. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 3 vs 2.

Feature	GeForce GT 640	Radeon R7 +8G
DirectX	11.0	12 (11_1)+9%
Vulkan	1.1	1.2+9%
OpenGL	4.5	4.6+2%
Max Displays	3+50%	2

🎬

Media & Encoding

Hardware encoder: NVENC 1.0 (GeForce GT 640) vs VCE 2.0 (Radeon R7 +8G). Decoder: PureVideo HD VP5 vs UVD 4.0. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640) vs H.264,MPEG-4,VC-1,MPEG-2 (Radeon R7 +8G).

Feature	GeForce GT 640	Radeon R7 +8G
Encoder	NVENC 1.0	VCE 2.0
Decoder	PureVideo HD VP5	UVD 4.0
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	H.264,MPEG-4,VC-1,MPEG-2

🔌

Power & Dimensions

The GeForce GT 640 draws 65W versus the Radeon R7 +8G's 30W — a 73.7% difference. The Radeon R7 +8G is more power-efficient. Recommended PSU: 300W (GeForce GT 640) vs 350W (Radeon R7 +8G). Power connectors: None vs PCIe-powered. Card length: 145mm vs 168mm, occupying 1 vs 1 slots. Typical load temperature: 60°C vs 75.

Feature	GeForce GT 640	Radeon R7 +8G
TDP	65W	30W-54%
Recommended PSU	300W-14%	350W
Power Connector	None	PCIe-powered
Length	145mm	168mm
Height	111mm	111mm
Slots	1	1
Temp (Load)	60°C-20%	75
Perf/Watt	18.0	39.7+121%

💰

Value Analysis

The GeForce GT 640 launched at $99 MSRP, while the Radeon R7 +8G launched at $49. The Radeon R7 +8G costs 50.5% less ($50 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 11.8 (GeForce GT 640) vs 24.3 (Radeon R7 +8G) — the Radeon R7 +8G offers 105.9% better value. The Radeon R7 +8G is the newer GPU (2015 vs 2012).