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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 6790

AMD Radeon HD 6790

Performance Comparison

AMD Radeon RX 7900 GRE

1634%
1634%

AMD Radeon HD 6790

6%
6%
AMD Radeon RX 7900 GRE is approximately 1628% faster

Technical Specifications

SpecificationAMD Radeon RX 7900 GREAMD Radeon HD 6790
Graphics ProcessorDifferent
Navi 31
Barts
CoresDifferent
5120
800
TMUsDifferent
320
40
ROPsDifferent
160
16
Memory SizeDifferent
16 GB
1024 MB
Memory TypeDifferent
GDDR6
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
GPU NameDifferent
Navi 31
Barts
CodenameDifferent
Plum Bonito
N/A
GPU VariantDifferent
Navi 31 XL(215-145000206)
Barts LE(215-0798002)
ArchitectureDifferent
RDNA 3.0
TeraScale 2
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
1,700 million
GCD TransistorsDifferent
45,400 million
N/A
MCD TransistorsDifferent
2,050 million x6
N/A
DensityDifferent
109.1M / mm²
6.7M / mm²
GCD DensityDifferent
150.2M / mm²
N/A
MCD DensityDifferent
54.64M / mm²
N/A
Die SizeDifferent
529 mm²
255 mm²
GCD Die SizeDifferent
304.35 mm²
N/A
MCD Die SizeDifferent
37.52 mm² x6
N/A
Chip PackageDifferent
MCM
HFCBGA-1737

Graphics Card

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
Release DateDifferent
Jul 27th, 2023
Apr 4th, 2011
GenerationDifferent
Navi III(RX 7000)
Northern Islands(HD 6700)
PredecessorDifferent
Navi II
Evergreen
SuccessorDifferent
Navi IV
Southern Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
549 USD
149 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 2.0 x16
ReviewsDifferent
34 in our database
37 in our database

Clock Speeds

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
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
1050 MHz4.2 Gbps effective
GPU ClockDifferent
N/A
840 MHz

Memory

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
Memory SizeDifferent
16 GB
1024 MB
Memory TypeDifferent
GDDR6
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
576.0 GB/s
134.4 GB/s

Render Config

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
Shading UnitsDifferent
5120
800
TMUsDifferent
320
40
ROPsDifferent
160
16
Compute UnitsDifferent
80
10
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 6790
Pixel RateDifferent
359.2 GPixel/s
13.44 GPixel/s
Texture RateDifferent
718.4 GTexel/s
33.60 GTexel/s
FP16 (half)Different
91.96 TFLOPS (2:1)
N/A
FP32 (float)Different
45.98 TFLOPS
1,344.0 GFLOPS
FP64 (double)Different
1,436.8 GFLOPS (1:32)
N/A

Board Design

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
Slot Width
Dual-slot
Dual-slot
LengthDifferent
276 mm10.9 inches
198 mm7.8 inches
HeightDifferent
110 mm4.3 inches
N/A
WidthDifferent
51 mm2 inches
N/A
TDPDifferent
260 W
150 W
Suggested PSUDifferent
600 W
450 W
OutputsDifferent
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power ConnectorsDifferent
2x 8-pin
2x 6-pin
Board NumberDifferent
109-D712A7-00_02
C220, 109-C22237-00

Graphics Features

FeatureAMD Radeon RX 7900 GREAMD Radeon HD 6790
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 6790

Compare AMD Radeon HD 6790 with other GPUs of similar performance

AMD Radeon HD 6790 vs GeForce GTX 285

GeForce GTX 285 Performance119%

GeForce GTX 285 is 19% faster than AMD Radeon HD 6790

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AMD Radeon HD 6790 vs Radeon HD 6850

Radeon HD 6850 Performance116%

Radeon HD 6850 is 16% faster than AMD Radeon HD 6790

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AMD Radeon HD 6790 vs GeForce GTX 280

GeForce GTX 280 Performance109%

GeForce GTX 280 is 9% faster than AMD Radeon HD 6790

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AMD Radeon HD 6790 vs Radeon HD 7770 GHz Edition

Radeon HD 7770 GHz Edition Performance109%

Radeon HD 7770 GHz Edition is 9% faster than AMD Radeon HD 6790

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AMD Radeon HD 6790 vs GeForce GTX 275

GeForce GTX 275 Performance108%

GeForce GTX 275 is 8% faster than AMD Radeon HD 6790

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AMD Radeon HD 6790 vs GeForce GTX 460

GeForce GTX 460 Performance106%

GeForce GTX 460 is 6% faster than AMD Radeon HD 6790

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