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GPU Comparison

Side-by-side comparison of specifications and performance

AMD Radeon RX 7900 GRE

AMD Radeon RX 7900 GRE

AMD Radeon HD 6990

AMD Radeon HD 6990

Performance Comparison

AMD Radeon RX 7900 GRE

586%
586%

AMD Radeon HD 6990

17%
17%
AMD Radeon RX 7900 GRE is approximately 569% faster

Technical Specifications

SpecificationAMD Radeon RX 7900 GREAMD Radeon HD 6990
Graphics ProcessorDifferent
Navi 31
Antilles x2
CoresDifferent
5120
1536 x2
TMUsDifferent
320
96 x2
ROPsDifferent
160
32 x2
Memory SizeDifferent
16 GB
2 GB x2
Memory TypeDifferent
GDDR6
GDDR5
Bus WidthDifferent
256 bit
256 bit x2

Graphics Processor

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
GPU NameDifferent
Navi 31
Antilles
CodenameDifferent
Plum Bonito
N/A
GPU VariantDifferent
Navi 31 XL(215-145000206)
Antilles XT(215-0807027)
ArchitectureDifferent
RDNA 3.0
TeraScale 3
Foundry
TSMC
TSMC
Process SizeDifferent
5 nm
40 nm
MCD ProcessDifferent
6 nm
N/A
Process TypeDifferent
N5 / N6 FinFET
N/A
TransistorsDifferent
57,700 million
2,640 million
GCD TransistorsDifferent
45,400 million
N/A
MCD TransistorsDifferent
2,050 million x6
N/A
DensityDifferent
109.1M / mm²
6.8M / mm²
GCD DensityDifferent
150.2M / mm²
N/A
MCD DensityDifferent
54.64M / mm²
N/A
Die SizeDifferent
529 mm²
389 mm²
GCD Die SizeDifferent
304.35 mm²
N/A
MCD Die SizeDifferent
37.52 mm² x6
N/A
Chip PackageDifferent
MCM
N/A

Graphics Card

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
Release DateDifferent
Jul 27th, 2023
Mar 8th, 2011
GenerationDifferent
Navi III(RX 7000)
Northern Islands(HD 6900)
PredecessorDifferent
Navi II
Evergreen
SuccessorDifferent
Navi IV
Southern Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
549 USD
699 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 2.0 x16
ReviewsDifferent
34 in our database
47 in our database

Clock Speeds

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
Base ClockDifferent
1287 MHz
N/A
Shader ClockDifferent
1880 MHz
N/A
Game ClockDifferent
1880 MHz
N/A
Boost ClockDifferent
2245 MHz
N/A
Memory ClockDifferent
2250 MHz18 Gbps effective
1250 MHz5 Gbps effective
GPU ClockDifferent
N/A
830 MHz

Memory

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
Memory SizeDifferent
16 GB
2 GB
Memory TypeDifferent
GDDR6
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
576.0 GB/s
160.0 GB/s

Render Config

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
Shading UnitsDifferent
5120
1536
TMUsDifferent
320
96
ROPsDifferent
160
32
Compute UnitsDifferent
80
24
Matrix CoresDifferent
160
N/A
RT CoresDifferent
80
N/A
L0 CacheDifferent
64 KB per WGP
N/A
L1 CacheDifferent
256 KB per Array
8 KB (per CU)
L2 CacheDifferent
6 MB
512 KB
L3 CacheDifferent
64 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
Pixel RateDifferent
359.2 GPixel/s
26.56 GPixel/s
Texture RateDifferent
718.4 GTexel/s
79.68 GTexel/s
FP16 (half)Different
91.96 TFLOPS (2:1)
N/A
FP32 (float)Different
45.98 TFLOPS
2.550 TFLOPS
FP64 (double)Different
1,436.8 GFLOPS (1:32)
637.4 GFLOPS (1:4)

Board Design

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
Slot Width
Dual-slot
Dual-slot
LengthDifferent
276 mm10.9 inches
310 mm12.2 inches
HeightDifferent
110 mm4.3 inches
115 mm4.5 inches
WidthDifferent
51 mm2 inches
40 mm1.6 inches
TDPDifferent
260 W
375 W
Suggested PSUDifferent
600 W
750 W
OutputsDifferent
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
1x DVI4x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 8-pin
Board NumberDifferent
109-D712A7-00_02
109-C20647-00

Graphics Features

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6990
DirectXDifferent
12 Ultimate (12_2)
11.2 (11_0)
OpenGLDifferent
4.6
4.4
OpenCLDifferent
2.2
1.2
VulkanDifferent
1.3
N/A
Shader ModelDifferent
6.8
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
66
Detailed Features

More Comparisons with AMD Radeon RX 7900 GRE

Compare AMD Radeon RX 7900 GRE with other GPUs of similar performance

AMD Radeon RX 7900 GRE vs GeForce RTX 3090 Ti

GeForce RTX 3090 Ti Performance119%

GeForce RTX 3090 Ti is 19% faster than AMD Radeon RX 7900 GRE

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AMD Radeon RX 7900 GRE vs GeForce RTX 4070 Ti SUPER

GeForce RTX 4070 Ti SUPER Performance119%

GeForce RTX 4070 Ti SUPER is 19% faster than AMD Radeon RX 7900 GRE

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AMD Radeon RX 7900 GRE vs Radeon RX 9070

Radeon RX 9070 Performance119%

Radeon RX 9070 is 19% faster than AMD Radeon RX 7900 GRE

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AMD Radeon RX 7900 GRE vs GeForce RTX 4070 Ti

GeForce RTX 4070 Ti Performance109%

GeForce RTX 4070 Ti is 9% faster than AMD Radeon RX 7900 GRE

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AMD Radeon RX 7900 GRE vs GeForce RTX 5070

GeForce RTX 5070 Performance108%

GeForce RTX 5070 is 8% faster than AMD Radeon RX 7900 GRE

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AMD Radeon RX 7900 GRE vs GeForce RTX 3090

GeForce RTX 3090 Performance106%

GeForce RTX 3090 is 6% faster than AMD Radeon RX 7900 GRE

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More Comparisons with AMD Radeon HD 6990

Compare AMD Radeon HD 6990 with other GPUs of similar performance

AMD Radeon HD 6990 vs GeForce GTX 1650

GeForce GTX 1650 Performance119%

GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs Radeon RX 6400

Radeon RX 6400 Performance117%

Radeon RX 6400 is 17% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs Arc A380

Arc A380 Performance115%

Arc A380 is 15% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs GeForce GTX 780

GeForce GTX 780 Performance115%

GeForce GTX 780 is 15% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition

Radeon HD 7970 GHz Edition Performance104%

Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990

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AMD Radeon HD 6990 vs GeForce GTX 590

GeForce GTX 590 Performance104%

GeForce GTX 590 is 4% faster than AMD Radeon HD 6990

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