Radeon HD 6990M vs Radeon R9 M290X

AMD

Radeon HD 6990M

2011Core: 715 MHz

Popular choices:

VS
AMD

Radeon R9 M290X

2014Core: 850 MHzBoost: 900 MHz

Popular choices:

Performance Spectrum - GPU

About G3D Mark

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 6990M

2011

Why buy it

  • Competitive enough if your priority is price, power, or specific feature preference.

Trade-offs

  • Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
  • Very weak future-proofing: 2011-era hardware with 2 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
  • Lower G3D Mark per dollar, at 0 vs 8.0 G3D/$ (Unknown MSRP vs $400 MSRP).

Radeon R9 M290X

2014

Why buy it

  • Delivers 100+% more G3D Mark for each dollar spent, at 8.0 vs 0 G3D/$ ($400 MSRP vs Unknown MSRP).
  • 100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
  • More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.

Trade-offs

  • Very weak future-proofing: 2014-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.

Quick Answers

So, is Radeon HD 6990M better than Radeon R9 M290X?
Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 3,264 vs 3,218 in G3D Mark. The bigger reason to prefer Radeon HD 6990M is the overall package: you are getting FSR upscaling.
Which one is more future-proof for 2026 and beyond?
Radeon HD 6990M is the safer long-term GPU choice because it gives you the stronger overall hardware and feature outlook for modern games.
Which one is the smarter buy today, not just the cheaper card?
Radeon HD 6990M is the smarter buy by a wide margin. Radeon HD 6990M is priced in an unclear MSRP range at an unclear MSRP versus $400 MSRP, and you are getting 1.4% higher G3D Mark. Radeon R9 M290X really only makes sense now as a very cheap stopgap or a used-market placeholder.
When does Radeon R9 M290X make more sense than Radeon HD 6990M?
Yes. Radeon R9 M290X 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 and staying closer to $400 MSRP more than squeezing out the extra headroom of Radeon HD 6990M. The trade-off is that Radeon HD 6990M currently gives you 1.4% higher G3D Mark. Radeon R9 M290X still holds the G3D-per-dollar lead, so the performance win comes with a real value premium.

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.

Path of Exile 2

Path of Exile 2

PresetRadeon HD 6990MRadeon R9 M290X
1080p
low62 FPS78 FPS
medium49 FPS67 FPS
high33 FPS53 FPS
ultra19 FPS35 FPS
1440p
low37 FPS69 FPS
medium27 FPS59 FPS
high17 FPS42 FPS
ultra9 FPS27 FPS
4K
low12 FPS24 FPS
medium10 FPS23 FPS
high6 FPS15 FPS
ultra6 FPS13 FPS
Counter-Strike 2

Counter-Strike 2

PresetRadeon HD 6990MRadeon R9 M290X
1080p
low94 FPS112 FPS
medium65 FPS84 FPS
high46 FPS64 FPS
ultra32 FPS40 FPS
1440p
low64 FPS64 FPS
medium41 FPS43 FPS
high30 FPS32 FPS
ultra22 FPS22 FPS
4K
low32 FPS24 FPS
medium22 FPS16 FPS
high16 FPS13 FPS
ultra11 FPS9 FPS
League of Legends

League of Legends

PresetRadeon HD 6990MRadeon R9 M290X
1080p
low147 FPS145 FPS
medium118 FPS116 FPS
high98 FPS97 FPS
ultra73 FPS72 FPS
1440p
low110 FPS109 FPS
medium88 FPS87 FPS
high73 FPS72 FPS
ultra55 FPS54 FPS
4K
low73 FPS72 FPS
medium59 FPS58 FPS
high49 FPS48 FPS
ultra37 FPS36 FPS
Valorant

Valorant

PresetRadeon HD 6990MRadeon R9 M290X
1080p
low139 FPS142 FPS
medium106 FPS113 FPS
high86 FPS97 FPS
ultra69 FPS72 FPS
1440p
low100 FPS103 FPS
medium79 FPS84 FPS
high65 FPS72 FPS
ultra48 FPS54 FPS
4K
low59 FPS60 FPS
medium43 FPS46 FPS
high33 FPS36 FPS
ultra23 FPS25 FPS

Technical Specifications

Side-by-side comparison of Radeon HD 6990M and Radeon R9 M290X

AMD

Radeon HD 6990M

The Radeon HD 6990M is manufactured by AMD. It was released in July 12 2011. It features the TeraScale 2 architecture. The core clock speed is 715 MHz. It has 1120 shading units. The thermal design power (TDP) is 100W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 3,264 points.

AMD

Radeon R9 M290X

The Radeon R9 M290X is manufactured by AMD. It was released in January 9 2014. It features the GCN 1.0 architecture. The core clock ranges from 850 MHz to 900 MHz. It has 1280 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,218 points.

Graphics Performance

The Radeon HD 6990M scores 3,264 and the Radeon R9 M290X reaches 3,218 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The Radeon HD 6990M is built on TeraScale 2 while the Radeon R9 M290X uses GCN 1.0, both on 40 nm vs 28 nm. Shader units: 1,120 (Radeon HD 6990M) vs 1,280 (Radeon R9 M290X). Raw compute: 1.602 TFLOPS (Radeon HD 6990M) vs 2.304 TFLOPS (Radeon R9 M290X).

FeatureRadeon HD 6990MRadeon R9 M290X
G3D Mark Score
3,264+1%
3,218
Architecture
TeraScale 2
GCN 1.0
Process Node
40 nm
28 nm
Shading Units
1120
1280+14%
Compute (TFLOPS)
1.602 TFLOPS
2.304 TFLOPS+44%
ROPs
32
32
TMUs
56
80+43%
L1 Cache
224 KB
320 KB+43%
L2 Cache
512 KB
512 KB
Frame Generation
FSR upscaling
FSR upscaling

Advanced Features (DLSS/FSR)

FeatureRadeon HD 6990MRadeon R9 M290X
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
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Video Memory (VRAM)

The Radeon HD 6990M comes with 2 GB of VRAM, while the Radeon R9 M290X has 4 GB. The Radeon R9 M290X offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.

FeatureRadeon HD 6990MRadeon R9 M290X
VRAM Capacity
2 GB
4 GB+100%
Memory Type
Shared
GDDR5
Memory Bandwidth
System
Unknown
Bus Width
System
128-bit
L2 Cache
512 KB
512 KB
🔌

Power & Dimensions

The Radeon HD 6990M draws 100W versus the Radeon R9 M290X's 100W — a 0% difference. The Radeon R9 M290X is more power-efficient. Recommended PSU: 350W (Radeon HD 6990M) vs 350W (Radeon R9 M290X). Power connectors: 1x 6-pin vs Mobile.

FeatureRadeon HD 6990MRadeon R9 M290X
TDP
100W
100W
Recommended PSU
350W
350W
Power Connector
1x 6-pin
Mobile
Perf/Watt
32.6+1%
32.2
💰

Value Analysis

The Radeon R9 M290X is the newer GPU (2014 vs 2011).

FeatureRadeon HD 6990MRadeon R9 M290X
MSRP
$400
Codename
Blackcomb
Neptune
Release
July 12 2011
January 9 2014
Ranking
#691
#566