Home GPU Comparison ATI Radeon HD 4890 vs ATI Radeon HD 4670 X2

ATI Radeon HD 4890 vs ATI Radeon HD 4670 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 512MB VRAM Radeon HD 4670 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4890 's Advantages
Released 7 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (124.8GB/s vs 22.40GB/s)
480 additional rendering cores
ATI Radeon HD 4670 X2 's Advantages
Lower TDP (118W vs 190W)

Score

Benchmark

FP32 (float)
Radeon HD 4890 +183%
1.36 TFLOPS
Radeon HD 4670 X2
0.48 TFLOPS
VS

Graphics Card

Apr 2009
Release Date
Sep 2008
Radeon R700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
975 MHz
Memory Clock
700 MHz

Memory

1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
124.8GB/s
Bandwidth
22.40GB/s

Render Config

10
Compute Units
4
-
-
-
800
Shading Units
320
40
TMUs
32
16
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

13.60 GPixel/s
Pixel Rate
6.000 GPixel/s
34.00 GTexel/s
Texture Rate
24.00 GTexel/s
-
-
-
1360 GFLOPS
FP32 (float)
480.0 GFLOPS
272.0 GFLOPS
FP64 (double)
-

Board Design

190W
TDP
118W
450 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
4x DVI
2x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

RV790
GPU Name
RV730
RV790 XT (215-0758016)
GPU Variant
RV730 XT (215-0719047)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.959 billion
Transistors
0.514 billion
282 mm²
Die Size
146 mm²

Graphics Features

10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.1

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