Radeon HD 7990 vs Radeon TM

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.

Radeon HD 7990

2013

Why buy it

✅6.7% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 5.6 vs 0 G3D/$ ($999 MSRP vs Unknown 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.
❌2400% higher power demand at 375W vs 15W.

Radeon TM

2024

Why buy it

✅33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
✅More future proof: RDNA 3.5 (2024−2025) on 4nm with a newer platform for upcoming games.
✅Draws 15W instead of 375W, a 360W reduction.

Trade-offs

❌Lower average FPS than Radeon HD 7990 across 50 tracked games in our benchmark data.
❌Lower G3D Mark per dollar, at 0 vs 5.6 G3D/$ (Unknown MSRP vs $999 MSRP).

Radeon HD 7990

2013

Radeon TM

2024

Why buy it

✅6.7% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 5.6 vs 0 G3D/$ ($999 MSRP vs Unknown MSRP).

Why buy it

✅33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
✅More future proof: RDNA 3.5 (2024−2025) on 4nm with a newer platform for upcoming games.
✅Draws 15W instead of 375W, a 360W reduction.

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.
❌2400% higher power demand at 375W vs 15W.

Trade-offs

❌Lower average FPS than Radeon HD 7990 across 50 tracked games in our benchmark data.
❌Lower G3D Mark per dollar, at 0 vs 5.6 G3D/$ (Unknown MSRP vs $999 MSRP).

Quick Answers

So, is Radeon HD 7990 better than Radeon TM?

Yes. Radeon HD 7990 is clearly the better overall GPU here. Radeon HD 7990 averages 6.7% more FPS across 50 tracked games in our benchmark data. You are also looking at 5,566 vs 5,564 in G3D Mark. On top of that, Radeon HD 7990 is a 2013 card with FSR upscaling, while Radeon TM is a 2024 model from an older generation with FSR upscaling. 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?

Radeon TM is the more future-proof choice for 2026 and beyond. You are getting a newer 2024 generation instead of 2013, more VRAM at 4 GB instead of 3 GB, 100.0% more ray-tracing hardware, and a 4nm process instead of 28nm. 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 priced in an unclear MSRP range at $999 MSRP versus an unclear MSRP, and you are getting 6.7% more estimated average FPS across 50 tracked games in our benchmark data and 0.0% higher G3D Mark. Radeon TM is the newer 2024 card, so it still has a real case if you care more about newer architecture, lower power draw (15W vs 375W), and future-proofing than about squeezing out the strongest gaming value today.

When does Radeon TM make more sense than Radeon HD 7990?

Yes. Radeon TM 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 (15W vs 375W), future-proofing, and staying closer to an unclear MSRP more than squeezing out the extra headroom of Radeon HD 7990. The trade-off is that Radeon HD 7990 currently gives you 0.0% higher G3D Mark and 6.7% more estimated average FPS across 50 tracked games in our benchmark data. It also leads G3D-per-dollar by 100+%.

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.

Radeon HD 7990 Benchmark Check

Radeon TM Benchmark Check

Path of Exile 2

Preset	Radeon HD 7990	Radeon TM
1080p
low	77 FPS	93 FPS
medium	63 FPS	78 FPS
high	50 FPS	65 FPS
ultra	33 FPS	43 FPS
1440p
low	65 FPS	80 FPS
medium	54 FPS	68 FPS
high	38 FPS	51 FPS
ultra	24 FPS	32 FPS
4K
low	24 FPS	30 FPS
medium	23 FPS	28 FPS
high	14 FPS	19 FPS
ultra	12 FPS	17 FPS

Open Radeon HD 7990 Open Radeon TM

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Radeon HD 7990	Radeon TM
1080p
low	143 FPS	126 FPS
medium	118 FPS	88 FPS
high	97 FPS	63 FPS
ultra	71 FPS	45 FPS
1440p
low	88 FPS	90 FPS
medium	66 FPS	60 FPS
high	49 FPS	44 FPS
ultra	37 FPS	32 FPS
4K
low	37 FPS	38 FPS
medium	28 FPS	28 FPS
high	21 FPS	22 FPS
ultra	16 FPS	15 FPS

Open Radeon HD 7990 Open Radeon TM

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Radeon HD 7990	Radeon TM
1080p
low	250 FPS	250 FPS
medium	200 FPS	200 FPS
high	167 FPS	167 FPS
ultra	125 FPS	125 FPS
1440p
low	188 FPS	188 FPS
medium	150 FPS	150 FPS
high	125 FPS	125 FPS
ultra	94 FPS	94 FPS
4K
low	125 FPS	125 FPS
medium	100 FPS	100 FPS
high	83 FPS	83 FPS
ultra	63 FPS	60 FPS

Open Radeon HD 7990 Open Radeon TM

League of Legends

League of Legends

Valorant

Preset	Radeon HD 7990	Radeon TM
1080p
low	145 FPS	172 FPS
medium	116 FPS	135 FPS
high	100 FPS	112 FPS
ultra	83 FPS	89 FPS
1440p
low	107 FPS	118 FPS
medium	87 FPS	96 FPS
high	75 FPS	81 FPS
ultra	58 FPS	64 FPS
4K
low	63 FPS	71 FPS
medium	48 FPS	56 FPS
high	38 FPS	44 FPS
ultra	26 FPS	33 FPS

Open Radeon HD 7990 Open Radeon TM

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Radeon HD 7990 and Radeon TM

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.

Radeon TM

The Radeon TM is manufactured by AMD. It was released in July 15 2024. It features the RDNA 3.5 architecture. The core clock ranges from 400 MHz to 2900 MHz. It has 1024 shading units. The thermal design power (TDP) is 15W. Manufactured using 4 nm process technology. It features 16 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 5,564 points.

⚡

Graphics Performance

The Radeon HD 7990 scores 5,566 and the Radeon TM reaches 5,564 in the G3D Mark benchmark — just a 0% difference, making them near-identical in rasterization performance. The Radeon HD 7990 is built on GCN 1.0 while the Radeon TM uses RDNA 3.5, both on 28 nm vs 4 nm. Shader units: 2,048 (Radeon HD 7990) vs 1,024 (Radeon TM). Raw compute: 4.096 TFLOPS ×2 (Radeon HD 7990) vs 5.939 TFLOPS (Radeon TM). Boost clocks: 1000 MHz vs 2900 MHz.

Feature	Radeon HD 7990	Radeon TM
G3D Mark Score	5,566	5,564
Architecture	GCN 1.0	RDNA 3.5
Process Node	28 nm	4 nm
Shading Units	2048 ×2+100%	1024
Compute (TFLOPS)	4.096 TFLOPS ×2	5.939 TFLOPS+45%
Boost Clock	1000 MHz	2900 MHz+190%
ROPs	32 ×2	32
TMUs	128 ×2+100%	64
L1 Cache	512 KB+100%	256 KB
L2 Cache	0.75 MB	2 MB+167%
Frame Generation	FSR upscaling	FSR upscaling + RSR

✨

Advanced Features (DLSS/FSR)

Feature	Radeon HD 7990	Radeon TM
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

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

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

🔌

Power & Dimensions

The Radeon HD 7990 draws 375W versus the Radeon TM's 15W — a 184.6% difference. The Radeon TM is more power-efficient. Recommended PSU: 750W (Radeon HD 7990) vs 350W (Radeon TM). Power connectors: 2x 8-pin vs PCIe-powered.

Feature	Radeon HD 7990	Radeon TM
TDP	375W	15W-96%
Recommended PSU	750W	350W-53%
Power Connector	2x 8-pin	PCIe-powered
Length	305mm	—
Height	111mm	—
Slots	2	—
Temp (Load)	85	—
Perf/Watt	14.8	370.9+2406%