GRID P40-12Q vs Radeon HD 7990

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.

GRID P40-12Q

2015

Why buy it

✅33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
✅Draws 225W instead of 375W, a 150W reduction.
✅More future proof: Maxwell 2.0 (2014−2019) on 28nm with a newer platform for upcoming games.

Trade-offs

❌Very weak future-proofing: 2015-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌
470.5% HIGHER MSRP
$5,699 MSRPvs$999 MSRP
❌Lower G3D Mark per dollar, at 1.0 vs 5.6 G3D/$ ($5,699 MSRP vs $999 MSRP).

Radeon HD 7990

2013

Why buy it

✅Costs $4,700 less on MSRP ($999 MSRP vs $5,699 MSRP).
✅Delivers 473.1% more G3D Mark for each dollar spent, at 5.6 vs 1.0 G3D/$ ($999 MSRP vs $5,699 MSRP).

Trade-offs

❌Less VRAM, with 3 GB vs 4 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2013-era hardware with 3 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌66.7% higher power demand at 375W vs 225W.

GRID P40-12Q

2015

Radeon HD 7990

2013

Why buy it

✅33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
✅Draws 225W instead of 375W, a 150W reduction.
✅More future proof: Maxwell 2.0 (2014−2019) on 28nm with a newer platform for upcoming games.

Why buy it

✅Costs $4,700 less on MSRP ($999 MSRP vs $5,699 MSRP).
✅Delivers 473.1% more G3D Mark for each dollar spent, at 5.6 vs 1.0 G3D/$ ($999 MSRP vs $5,699 MSRP).

Trade-offs

❌Very weak future-proofing: 2015-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌
470.5% HIGHER MSRP
$5,699 MSRPvs$999 MSRP
❌Lower G3D Mark per dollar, at 1.0 vs 5.6 G3D/$ ($5,699 MSRP vs $999 MSRP).

Trade-offs

❌Less VRAM, with 3 GB vs 4 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2013-era hardware with 3 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌66.7% higher power demand at 375W vs 225W.

Quick Answers

So, is Radeon HD 7990 better than GRID P40-12Q?

Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 5,540 vs 5,566 in G3D Mark. The bigger reason to prefer Radeon HD 7990 is the overall package: you are getting FSR upscaling.

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

GRID P40-12Q is the more future-proof choice for 2026 and beyond. You are getting a newer 2015 generation instead of 2013, more VRAM at 4 GB instead of 3 GB, 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 HD 7990 can still make sense if you find it at the right price, especially around $999 MSRP. Radeon HD 7990 is still the smarter buy for most people, though, because the raw performance is close while the overall package is cleaner. Radeon HD 7990 is about $4,700 cheaper on MSRP at $999 MSRP versus $5,699 MSRP, and you are getting 0.5% higher G3D Mark. GRID P40-12Q is the newer 2015 card, so it still has a real case if you care more about newer architecture, lower power draw (225W vs 375W), and future-proofing than about squeezing out the strongest gaming value today.

When does GRID P40-12Q make more sense than Radeon HD 7990?

Yes. GRID P40-12Q 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 newer architecture, lower power draw (225W vs 375W), future-proofing, and staying closer to $5,699 MSRP more than squeezing out the extra headroom of Radeon HD 7990. The trade-off is that Radeon HD 7990 currently gives you 0.5% higher G3D Mark. It also leads G3D-per-dollar by 473.1%.

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.

GRID P40-12Q Benchmark Check

Radeon HD 7990 Benchmark Check

Path of Exile 2

Preset	GRID P40-12Q	Radeon HD 7990
1080p
low	104 FPS	77 FPS
medium	90 FPS	63 FPS
high	73 FPS	50 FPS
ultra	44 FPS	33 FPS
1440p
low	91 FPS	65 FPS
medium	80 FPS	54 FPS
high	58 FPS	38 FPS
ultra	33 FPS	24 FPS
4K
low	29 FPS	24 FPS
medium	27 FPS	23 FPS
high	18 FPS	14 FPS
ultra	16 FPS	12 FPS

Open GRID P40-12Q Open Radeon HD 7990

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GRID P40-12Q	Radeon HD 7990
1080p
low	162 FPS	143 FPS
medium	128 FPS	118 FPS
high	94 FPS	97 FPS
ultra	75 FPS	71 FPS
1440p
low	119 FPS	88 FPS
medium	92 FPS	66 FPS
high	74 FPS	49 FPS
ultra	57 FPS	37 FPS
4K
low	68 FPS	37 FPS
medium	52 FPS	28 FPS
high	43 FPS	21 FPS
ultra	32 FPS	16 FPS

Open GRID P40-12Q Open Radeon HD 7990

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GRID P40-12Q	Radeon HD 7990
1080p
low	249 FPS	250 FPS
medium	199 FPS	200 FPS
high	166 FPS	167 FPS
ultra	125 FPS	125 FPS
1440p
low	187 FPS	188 FPS
medium	150 FPS	150 FPS
high	125 FPS	125 FPS
ultra	93 FPS	94 FPS
4K
low	125 FPS	125 FPS
medium	100 FPS	100 FPS
high	83 FPS	83 FPS
ultra	62 FPS	63 FPS

Open GRID P40-12Q Open Radeon HD 7990

League of Legends

League of Legends

Valorant

Preset	GRID P40-12Q	Radeon HD 7990
1080p
low	182 FPS	145 FPS
medium	148 FPS	116 FPS
high	133 FPS	100 FPS
ultra	103 FPS	83 FPS
1440p
low	132 FPS	107 FPS
medium	110 FPS	87 FPS
high	99 FPS	75 FPS
ultra	77 FPS	58 FPS
4K
low	77 FPS	63 FPS
medium	60 FPS	48 FPS
high	49 FPS	38 FPS
ultra	36 FPS	26 FPS

Open GRID P40-12Q Open Radeon HD 7990

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GRID P40-12Q and Radeon HD 7990

GRID P40-12Q

The GRID P40-12Q is manufactured by NVIDIA. It was released in August 30 2015. It features the Maxwell 2.0 architecture. The core clock ranges from 557 MHz to 1178 MHz. It has 2048 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,540 points.

Radeon HD 7990

The Radeon HD 7990 is manufactured by AMD. It was released in April 24 2013. It features the GCN 1.0 architecture. The core clock ranges from 950 MHz to 1000 MHz. It has 2048 ×2 shading units. The thermal design power (TDP) is 375W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,566 points. Launch price was $999.

⚡

Graphics Performance

The GRID P40-12Q scores 5,540 and the Radeon HD 7990 reaches 5,566 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The GRID P40-12Q is built on Maxwell 2.0 while the Radeon HD 7990 uses GCN 1.0, both on a 28 nm process. Shader units: 2,048 (GRID P40-12Q) vs 2,048 (Radeon HD 7990). Raw compute: 4.825 TFLOPS (GRID P40-12Q) vs 4.096 TFLOPS ×2 (Radeon HD 7990). Boost clocks: 1178 MHz vs 1000 MHz.

Feature	GRID P40-12Q	Radeon HD 7990
G3D Mark Score	5,540	5,566
Architecture	Maxwell 2.0	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	2048	2048 ×2
Compute (TFLOPS)	4.825 TFLOPS+18%	4.096 TFLOPS ×2
Boost Clock	1178 MHz+18%	1000 MHz
ROPs	64+100%	32 ×2
TMUs	128	128 ×2
L1 Cache	768 KB+50%	512 KB
L2 Cache	2 MB+167%	0.75 MB

✨

Advanced Features (DLSS/FSR)

Feature	GRID P40-12Q	Radeon HD 7990
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The GRID P40-12Q comes with 4 GB of VRAM, while the Radeon HD 7990 has 3 GB. The GRID P40-12Q offers 33.3% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 384-bit x2. L2 Cache: 2 MB (GRID P40-12Q) vs 0.75 MB (Radeon HD 7990) — the GRID P40-12Q has significantly larger on-die cache to reduce VRAM reliance.

Feature	GRID P40-12Q	Radeon HD 7990
VRAM Capacity	4 GB+33%	3 GB
Memory Type	GDDR6	GDDR5
Bus Width	128-bit	384-bit x2+200%
L2 Cache	2 MB+167%	0.75 MB

🔌

Power & Dimensions

The GRID P40-12Q draws 225W versus the Radeon HD 7990's 375W — a 50% difference. The GRID P40-12Q is more power-efficient. Recommended PSU: 350W (GRID P40-12Q) vs 750W (Radeon HD 7990). Power connectors: PCIe-powered vs 2x 8-pin.

Feature	GRID P40-12Q	Radeon HD 7990
TDP	225W-40%	375W
Recommended PSU	350W-53%	750W
Power Connector	PCIe-powered	2x 8-pin
Length	—	305mm
Height	—	111mm
Slots	—	2
Temp (Load)	—	85
Perf/Watt	24.6+66%	14.8

💰

Value Analysis

The GRID P40-12Q launched at $5699 MSRP, while the Radeon HD 7990 launched at $999. The Radeon HD 7990 costs 82.5% less ($4700 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 1.0 (GRID P40-12Q) vs 5.6 (Radeon HD 7990) — the Radeon HD 7990 offers 460% better value. The GRID P40-12Q is the newer GPU (2015 vs 2013).