Home GPU Comparison AMD Radeon RX 7900 GRE vs AMD Radeon HD 7970

AMD Radeon RX 7900 GRE vs AMD Radeon HD 7970

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7900 GRE and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 GRE 's Advantages
Released 11 years and 7 months late
Boost Clock2245MHz
More VRAM (16GB vs 3GB)
Larger VRAM bandwidth (576.0GB/s vs 264.0GB/s)
3072 additional rendering cores
AMD Radeon HD 7970 's Advantages
Lower TDP (250W vs 260W)

Score

Benchmark

FP32 (float)
Radeon RX 7900 GRE +1113%
45.98 TFLOPS
Radeon HD 7970
3.789 TFLOPS
3DMark Time Spy
Radeon RX 7900 GRE +880%
22344
Radeon HD 7970
2279
VS

Graphics Card

Jul 2023
Release Date
Dec 2011
Navi III
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1287 MHz
Base Clock
-
2245 MHz
Boost Clock
-
2250 MHz
Memory Clock
1375 MHz

Memory

16GB
Memory Size
3GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
384bit
576.0GB/s
Bandwidth
264.0GB/s

Render Config

80
Compute Units
32
-
-
-
5120
Shading Units
2048
320
TMUs
128
160
ROPs
32
-
-
-
80
RT Cores
-
256 KB per Array
L1 Cache
16 KB (per CU)
6 MB
L2 Cache
768 KB
64 MB
L3 Cache
-

Theoretical Performance

359.2 GPixel/s
Pixel Rate
29.60 GPixel/s
718.4 GTexel/s
Texture Rate
118.4 GTexel/s
91.96 TFLOPS
FP16 (half)
-
45.98 TFLOPS
FP32 (float)
3.789 TFLOPS
1437 GFLOPS
FP64 (double)
947.2 GFLOPS

Board Design

260W
TDP
250W
600 W
Suggested PSU
600 W
1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Processor

Navi 31
GPU Name
Tahiti
Navi 31 XL (215-145000206)
GPU Variant
Tahiti XT (215-0821060)
RDNA 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
57.7 billion
Transistors
4.313 billion
529 mm²
Die Size
352 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.2
OpenCL
1.2
1.3
Vulkan
1.2
-
-
-
6.7
Shader Model
5.1

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